diff --git a/.github/workflows/karma.yml b/.github/workflows/karma.yml
index 6bc1cbf50b..964baa4866 100644
--- a/.github/workflows/karma.yml
+++ b/.github/workflows/karma.yml
@@ -179,6 +179,7 @@ jobs:
             - run: NODE_ENV_FOR_TEST=production DISABLE_SYNTHETIC=1 yarn sauce:ci
             - run: yarn hydration:sauce:ci
             - run: ENABLE_SYNTHETIC_SHADOW_IN_HYDRATION=1 yarn hydration:sauce:ci
+            - run: NODE_ENV_FOR_TEST=production yarn hydration:sauce:ci
 
             - name: Upload coverage results
               uses: actions/upload-artifact@v4
diff --git a/packages/@lwc/integration-karma/.eslintrc b/packages/@lwc/integration-karma/.eslintrc
index 1fdfbc9dd9..82e3f9b100 100644
--- a/packages/@lwc/integration-karma/.eslintrc
+++ b/packages/@lwc/integration-karma/.eslintrc
@@ -2,7 +2,8 @@
     "globals": {
         "process": true,
         "LWC": true,
-        "spyOnAllFunctions": true
+        "spyOnAllFunctions": true,
+        "TestUtils": true
     },
 
     "env": {
diff --git a/packages/@lwc/integration-karma/helpers/test-utils.js b/packages/@lwc/integration-karma/helpers/test-utils.js
index 754eaf6837..26d3891a7c 100644
--- a/packages/@lwc/integration-karma/helpers/test-utils.js
+++ b/packages/@lwc/integration-karma/helpers/test-utils.js
@@ -565,6 +565,34 @@ window.TestUtils = (function (lwc, jasmine, beforeAll) {
 
     const IS_SYNTHETIC_SHADOW_LOADED = !`${ShadowRoot}`.includes('[native code]');
 
+    // Designed for hydration tests, this helper asserts certain error/warn console messages were logged
+    function createExpectConsoleCallsFunc(devOnly) {
+        return (consoleCalls, methods) => {
+            for (const [method, matchers] of Object.entries(methods)) {
+                const calls = consoleCalls[method];
+                if (devOnly && process.env.NODE_ENV === 'production') {
+                    // assume no console errors/warnings in production
+                    expect(calls).toHaveSize(0);
+                } else {
+                    expect(calls).toHaveSize(matchers.length);
+                    for (let i = 0; i < matchers.length; i++) {
+                        const matcher = matchers[i];
+                        const call = calls[i][0];
+                        const message = typeof call === 'string' ? call : call.message;
+                        if (typeof matcher === 'string') {
+                            expect(message).toContain(matcher);
+                        } else {
+                            expect(message).toMatch(matcher);
+                        }
+                    }
+                }
+            }
+        };
+    }
+
+    const expectConsoleCalls = createExpectConsoleCallsFunc(false);
+    const expectConsoleCallsDev = createExpectConsoleCallsFunc(true);
+
     // These values are based on the API versions in @lwc/shared/api-version
     const apiFeatures = {
         LOWERCASE_SCOPE_TOKENS: process.env.API_VERSION >= 59,
@@ -604,6 +632,8 @@ window.TestUtils = (function (lwc, jasmine, beforeAll) {
         attachReportingControlDispatcher,
         detachReportingControlDispatcher,
         IS_SYNTHETIC_SHADOW_LOADED,
+        expectConsoleCalls,
+        expectConsoleCallsDev,
         ...apiFeatures,
     };
 })(LWC, jasmine, beforeAll);
diff --git a/packages/@lwc/integration-karma/scripts/karma-configs/hydration/base.js b/packages/@lwc/integration-karma/scripts/karma-configs/hydration/base.js
index 3cef145d92..e63030a645 100644
--- a/packages/@lwc/integration-karma/scripts/karma-configs/hydration/base.js
+++ b/packages/@lwc/integration-karma/scripts/karma-configs/hydration/base.js
@@ -14,7 +14,7 @@ const { ENABLE_SYNTHETIC_SHADOW_IN_HYDRATION } = require('../../shared/options')
 const karmaPluginHydrationTests = require('../../karma-plugins/hydration-tests');
 const karmaPluginEnv = require('../../karma-plugins/env');
 const karmaPluginTransformFramework = require('../../karma-plugins/transform-framework.js');
-const { GREP, COVERAGE } = require('../../shared/options');
+const { GREP, COVERAGE, COVERAGE_DIR_FOR_OPTIONS } = require('../../shared/options');
 const { createPattern } = require('../utils');
 
 const BASE_DIR = path.resolve(__dirname, '../../../test-hydration');
@@ -98,7 +98,7 @@ module.exports = (config) => {
         config.plugins.push('karma-coverage');
 
         config.coverageReporter = {
-            dir: path.resolve(COVERAGE_DIR, 'hydration'),
+            dir: path.resolve(COVERAGE_DIR, 'hydration', COVERAGE_DIR_FOR_OPTIONS),
             reporters: [{ type: 'html' }, { type: 'json' }],
         };
     }
diff --git a/packages/@lwc/integration-karma/test-hydration/attributes/falsy-mismatch/index.spec.js b/packages/@lwc/integration-karma/test-hydration/attributes/falsy-mismatch/index.spec.js
index db0caf27d1..3ba4dab046 100644
--- a/packages/@lwc/integration-karma/test-hydration/attributes/falsy-mismatch/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/attributes/falsy-mismatch/index.spec.js
@@ -28,14 +28,13 @@ export default {
             expect(divs[i].getAttribute('data-foo')).toEqual(expectedAttrValues[i]);
         }
 
-        expect(consoleCalls.warn).toHaveSize(0);
-        expect(consoleCalls.error).toHaveSize(3);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <div>: attribute "data-foo" has different values, expected "undefined" but found null'
-        );
-        expect(consoleCalls.error[1][0].message).toContain(
-            'Mismatch hydrating element <div>: attribute "data-foo" has different values, expected "null" but found null'
-        );
-        expect(consoleCalls.error[2][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            warn: [],
+            error: [
+                'Mismatch hydrating element <div>: attribute "data-foo" has different values, expected "undefined" but found null',
+                'Mismatch hydrating element <div>: attribute "data-foo" has different values, expected "null" but found null',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/errors/already-hydrated/index.spec.js b/packages/@lwc/integration-karma/test-hydration/errors/already-hydrated/index.spec.js
index 259ac5d92b..251c761b6e 100644
--- a/packages/@lwc/integration-karma/test-hydration/errors/already-hydrated/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/errors/already-hydrated/index.spec.js
@@ -5,8 +5,9 @@ export default {
         hydrateComponent(target, Component, {});
 
         const consoleCalls = consoleSpy.calls;
-        const expectedMessage = '"hydrateComponent" expects an element that is not hydrated.';
-        expect(consoleCalls.warn).toHaveSize(1);
-        expect(consoleCalls.warn[0][0]).toContain(expectedMessage);
+
+        TestUtils.expectConsoleCalls(consoleCalls, {
+            warn: ['"hydrateComponent" expects an element that is not hydrated.'],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/attrs-compatibility/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/attrs-compatibility/index.spec.js
index 8769b88495..d5e40420dc 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/attrs-compatibility/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/attrs-compatibility/index.spec.js
@@ -18,13 +18,12 @@ export default {
         expect(p.getAttribute('data-same')).toBe('same-value');
         expect(p.getAttribute('data-another-diff')).toBe('client-val');
 
-        expect(consoleCalls.error).toHaveSize(3);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "title" has different values, expected "client-title" but found "ssr-title"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "data-another-diff" has different values, expected "client-val" but found "ssr-val"'
-        );
-        expect(consoleCalls.error[2][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "title" has different values, expected "client-title" but found "ssr-title"',
+                'Mismatch hydrating element <p>: attribute "data-another-diff" has different values, expected "client-val" but found "ssr-val"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/attrs-expression/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/attrs-expression/index.spec.js
index 6a984ac720..8bbcb401d3 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/attrs-expression/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/attrs-expression/index.spec.js
@@ -17,10 +17,11 @@ export default {
         expect(div.getAttribute('data-foo')).toBe('client');
         expect(div.getAttribute('data-static')).toBe('same-value');
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <div>: attribute "data-foo" has different values, expected "client" but found "server"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <div>: attribute "data-foo" has different values, expected "client" but found "server"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-different/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-different/index.spec.js
index 92baf211cc..7800112b0f 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-different/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-different/index.spec.js
@@ -18,10 +18,11 @@ export default {
         expect(p).not.toBe(snapshots.p);
         expect(p.className).not.toBe(snapshots.classes);
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "class" has different values, expected "c2 c3 c4" but found "c1 c2 c3"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "class" has different values, expected "c2 c3 c4" but found "c1 c2 c3"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-empty-in-ssr-null-string-in-client/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-empty-in-ssr-null-string-in-client/index.spec.js
index 1e33b158d2..a21abcc15f 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-empty-in-ssr-null-string-in-client/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-empty-in-ssr-null-string-in-client/index.spec.js
@@ -21,11 +21,12 @@ export default {
         expect(p).not.toBe(snapshots.p);
         expect(p.className).not.toBe(snapshots.className);
 
-        expect(consoleCalls.warn).toHaveSize(0);
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "class" has different values, expected "null" but found null'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            warn: [],
+            error: [
+                'Mismatch hydrating element <p>: attribute "class" has different values, expected "null" but found null',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-null-string-in-ssr-empty-in-client/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-null-string-in-ssr-empty-in-client/index.spec.js
index 54ec9fbd1e..fdf5b0826c 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-null-string-in-ssr-empty-in-client/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-null-string-in-ssr-empty-in-client/index.spec.js
@@ -21,11 +21,12 @@ export default {
         expect(p).not.toBe(snapshots.p);
         expect(p.className).not.toBe(snapshots.className);
 
-        expect(consoleCalls.warn).toHaveSize(0);
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "class" has different values, expected "" but found "null"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            warn: [],
+            error: [
+                'Mismatch hydrating element <p>: attribute "class" has different values, expected "" but found "null"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-same-different-order-throws/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-same-different-order-throws/index.spec.js
index 675859cf89..e580fb94e0 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-same-different-order-throws/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/dynamic-same-different-order-throws/index.spec.js
@@ -18,10 +18,11 @@ export default {
         expect(p).not.toBe(snapshots.p);
         expect(p.className).not.toBe(snapshots.classes);
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "class" has different values, expected "c3 c2 c1" but found "c1 c2 c3"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "class" has different values, expected "c3 c2 c1" but found "c1 c2 c3"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/only-present-in-ssr/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/only-present-in-ssr/index.spec.js
index 2c5193ab6e..a909824a42 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/only-present-in-ssr/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/only-present-in-ssr/index.spec.js
@@ -10,12 +10,12 @@ export default {
 
         hydrateComponent(target, Component, {});
 
-        expect(consoleSpy.calls.error).toHaveSize(2);
-        expect(consoleSpy.calls.error[0][0].message).toEqual(
-            '[LWC error]: Mismatch hydrating element <x-child>: attribute "class" has different values, expected "" but found "foo"\n'
-        );
-        expect(consoleSpy.calls.error[1][0].message).toEqual(
-            '[LWC error]: Hydration completed with errors.\n'
-        );
+        const consoleCalls = consoleSpy.calls;
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                '[LWC error]: Mismatch hydrating element <x-child>: attribute "class" has different values, expected "" but found "foo"\n',
+                '[LWC error]: Hydration completed with errors.\n',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-extra-class-from-client/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-extra-class-from-client/index.spec.js
index 7d402ce479..c80772c979 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-extra-class-from-client/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-extra-class-from-client/index.spec.js
@@ -19,10 +19,11 @@ export default {
         expect(p.className).not.toBe(snapshots.classes);
         expect(p.className).toBe('c1 c2 c3');
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "class" has different values, expected "c1 c2 c3" but found "c1 c3"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "class" has different values, expected "c1 c2 c3" but found "c1 c3"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-extra-class-from-server/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-extra-class-from-server/index.spec.js
index e1a127bde5..a3af83a2fb 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-extra-class-from-server/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-extra-class-from-server/index.spec.js
@@ -19,10 +19,11 @@ export default {
         expect(p.className).not.toBe(snapshots.classes);
         expect(p.className).toBe('c1 c3');
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "class" has different values, expected "c1 c3" but found "c1 c2 c3"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "class" has different values, expected "c1 c3" but found "c1 c2 c3"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-same-different-order/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-same-different-order/index.spec.js
index 2012217d9a..af8d4d8f1b 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-same-different-order/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-same-different-order/index.spec.js
@@ -18,10 +18,11 @@ export default {
         expect(p).not.toBe(snapshots.p);
         expect(p.className).toBe('c1 c2 c3');
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "class" has different values, expected "c1 c2 c3" but found "c3 c2 c1"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "class" has different values, expected "c1 c2 c3" but found "c3 c2 c1"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-unoptimized-extra-class-from-client/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-unoptimized-extra-class-from-client/index.spec.js
index 7d402ce479..c80772c979 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-unoptimized-extra-class-from-client/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-unoptimized-extra-class-from-client/index.spec.js
@@ -19,10 +19,11 @@ export default {
         expect(p.className).not.toBe(snapshots.classes);
         expect(p.className).toBe('c1 c2 c3');
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "class" has different values, expected "c1 c2 c3" but found "c1 c3"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "class" has different values, expected "c1 c2 c3" but found "c1 c3"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-unoptimized-extra-class-from-server/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-unoptimized-extra-class-from-server/index.spec.js
index e1a127bde5..a3af83a2fb 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-unoptimized-extra-class-from-server/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/class-attr/static-unoptimized-extra-class-from-server/index.spec.js
@@ -19,10 +19,11 @@ export default {
         expect(p.className).not.toBe(snapshots.classes);
         expect(p.className).toBe('c1 c3');
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "class" has different values, expected "c1 c3" but found "c1 c2 c3"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "class" has different values, expected "c1 c3" but found "c1 c2 c3"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/comment-instead-of-text/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/comment-instead-of-text/index.spec.js
index 5e6fd74991..baa55b06e6 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/comment-instead-of-text/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/comment-instead-of-text/index.spec.js
@@ -17,10 +17,11 @@ export default {
         expect(comment.nodeType).toBe(Node.COMMENT_NODE);
         expect(comment.nodeValue).toBe(snapshots.text.nodeValue);
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Hydration mismatch: incorrect node type received'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Hydration mismatch: incorrect node type received',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/different-lwc-inner-html/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/different-lwc-inner-html/index.spec.js
index 07140c3d4f..a6cda549a6 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/different-lwc-inner-html/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/different-lwc-inner-html/index.spec.js
@@ -21,10 +21,11 @@ export default {
         expect(p).not.toBe(snapshot.p);
         expect(p.textContent).toBe('different-content');
 
-        expect(consoleCalls.warn).toHaveSize(1);
-        expect(consoleCalls.warn[0][0].message).toContain(
-            'Mismatch hydrating element <div>: innerHTML values do not match for element, will recover from the difference'
-        );
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            warn: [
+                'Mismatch hydrating element <div>: innerHTML values do not match for element, will recover from the difference',
+            ],
+        });
 
         target.content = '<p>another-content</p>';
 
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/display-errors-attrs-class-style/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/display-errors-attrs-class-style/index.spec.js
index e09acc5064..3f79f48ef4 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/display-errors-attrs-class-style/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/display-errors-attrs-class-style/index.spec.js
@@ -23,16 +23,13 @@ export default {
         expect(p.getAttribute('style')).toBe('background-color: blue;');
         expect(p.getAttribute('data-attrs')).toBe('client-attrs');
 
-        expect(consoleCalls.error).toHaveSize(4);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "data-attrs" has different values, expected "client-attrs" but found "ssr-attrs"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: blue;" but found "background-color: red;"'
-        );
-        expect(consoleCalls.error[2][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "class" has different values, expected "client-class" but found "ssr-class"'
-        );
-        expect(consoleCalls.error[3][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "data-attrs" has different values, expected "client-attrs" but found "ssr-attrs"',
+                'Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: blue;" but found "background-color: red;"',
+                'Mismatch hydrating element <p>: attribute "class" has different values, expected "client-class" but found "ssr-class"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/dynamic-component/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/dynamic-component/index.spec.js
index 7715eb59ff..11ba9990cb 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/dynamic-component/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/dynamic-component/index.spec.js
@@ -16,10 +16,12 @@ export default {
         expect(snapshots.tagName).toBe('x-server');
         // Client side constructor
         expect(target.shadowRoot.querySelector('x-client')).not.toBeNull();
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            '[LWC error]: Hydration mismatch: expecting element with tag "x-client" but found "x-server".'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                '[LWC error]: Hydration mismatch: expecting element with tag "x-client" but found "x-server".',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/element-instead-of-textNode/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/element-instead-of-textNode/index.spec.js
index 7f3db65b28..0bed20310e 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/element-instead-of-textNode/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/element-instead-of-textNode/index.spec.js
@@ -19,10 +19,11 @@ export default {
 
         expect(text.nodeType).toBe(Node.TEXT_NODE);
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            '[LWC error]: Hydration mismatch: incorrect node type received'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                '[LWC error]: Hydration mismatch: incorrect node type received',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/favors-client-side-comment/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/favors-client-side-comment/index.spec.js
index c960844ec9..d2ad2997b0 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/favors-client-side-comment/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/favors-client-side-comment/index.spec.js
@@ -18,9 +18,10 @@ export default {
         expect(comment.nodeValue).not.toBe(snapshots.commentText);
         expect(comment.nodeValue).toBe('second');
 
-        expect(consoleCalls.warn).toHaveSize(1);
-        expect(consoleCalls.warn[0][0].message).toContain(
-            'Hydration mismatch: comment values do not match, will recover from the difference'
-        );
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            warn: [
+                'Hydration mismatch: comment values do not match, will recover from the difference',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/favors-client-side-text/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/favors-client-side-text/index.spec.js
index a07e1fed79..932f2e69ed 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/favors-client-side-text/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/favors-client-side-text/index.spec.js
@@ -18,9 +18,10 @@ export default {
         expect(p.firstChild).toBe(snapshots.text);
         expect(p.textContent).toBe('bye!');
 
-        expect(consoleCalls.warn).toHaveSize(1);
-        expect(consoleCalls.warn[0][0].message).toContain(
-            'Hydration mismatch: text values do not match, will recover from the difference'
-        );
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            warn: [
+                'Hydration mismatch: text values do not match, will recover from the difference',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/invalid-number-of-nodes/foreach/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/invalid-number-of-nodes/foreach/index.spec.js
index 383caf205d..831387a2a8 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/invalid-number-of-nodes/foreach/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/invalid-number-of-nodes/foreach/index.spec.js
@@ -15,10 +15,11 @@ export default {
 
         expect(hydratedSnapshot.text).not.toBe(snapshots.text);
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Server rendered more nodes than the client.'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Server rendered more nodes than the client.',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/invalid-number-of-nodes/if-true/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/invalid-number-of-nodes/if-true/index.spec.js
index b479499df8..2c1a6bab18 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/invalid-number-of-nodes/if-true/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/invalid-number-of-nodes/if-true/index.spec.js
@@ -15,10 +15,11 @@ export default {
 
         expect(hydratedSnapshot.text).not.toBe(snapshots.text);
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Server rendered more nodes than the client.'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Server rendered more nodes than the client.',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/different-priority/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/different-priority/index.spec.js
index 195caa61ac..72eec11cf4 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/different-priority/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/different-priority/index.spec.js
@@ -21,10 +21,11 @@ export default {
             'background-color: red; border-color: red !important;'
         );
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            '[LWC error]: Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red; border-color: red !important;" but found "background-color: red; border-color: red;"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                '[LWC error]: Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red; border-color: red !important;" but found "background-color: red; border-color: red;"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/extra-from-client/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/extra-from-client/index.spec.js
index 1a185fdd1c..eee9cacb9a 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/extra-from-client/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/extra-from-client/index.spec.js
@@ -21,10 +21,11 @@ export default {
             'background-color: red; border-color: red; margin: 1px;'
         );
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red; border-color: red; margin: 1px;" but found "background-color: red; border-color: red;"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red; border-color: red; margin: 1px;" but found "background-color: red; border-color: red;"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/extra-from-server/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/extra-from-server/index.spec.js
index ce0cb340a6..3e9449907c 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/extra-from-server/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/extra-from-server/index.spec.js
@@ -19,10 +19,11 @@ export default {
         expect(p.getAttribute('style')).not.toBe(snapshots.style);
         expect(p.getAttribute('style')).toBe('background-color: red; border-color: red;');
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            '[LWC error]: Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red; border-color: red;" but found "background-color: red; border-color: red; margin: 1px;"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                '[LWC error]: Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red; border-color: red;" but found "background-color: red; border-color: red; margin: 1px;"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/same-different-order/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/same-different-order/index.spec.js
index 4032ddf86a..dbfad743ef 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/same-different-order/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/computed/same-different-order/index.spec.js
@@ -20,10 +20,11 @@ export default {
             'margin: 1px; border-color: red; background-color: red;'
         );
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "style" has different values, expected "margin: 1px; border-color: red; background-color: red;" but found "background-color: red; border-color: red; margin: 1px;"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "style" has different values, expected "margin: 1px; border-color: red; background-color: red;" but found "background-color: red; border-color: red; margin: 1px;"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/different-priority/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/different-priority/index.spec.js
index 52ff741e80..6932fa5659 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/different-priority/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/different-priority/index.spec.js
@@ -21,10 +21,11 @@ export default {
             'background-color: red; border-color: red !important;'
         );
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red; border-color: red !important;" but found "background-color: red; border-color: red;"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red; border-color: red !important;" but found "background-color: red; border-color: red;"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/extra-from-client/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/extra-from-client/index.spec.js
index a84a8f3ca7..ade71b2048 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/extra-from-client/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/extra-from-client/index.spec.js
@@ -21,10 +21,11 @@ export default {
             'background-color: red; border-color: red; margin: 1px;'
         );
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red; border-color: red; margin: 1px;" but found "background-color: red; border-color: red;"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red; border-color: red; margin: 1px;" but found "background-color: red; border-color: red;"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/extra-from-server/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/extra-from-server/index.spec.js
index 5a2535eb47..6aa426d624 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/extra-from-server/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/extra-from-server/index.spec.js
@@ -19,10 +19,11 @@ export default {
         expect(p.getAttribute('style')).not.toBe(snapshots.style);
         expect(p.getAttribute('style')).toBe('background-color: red; border-color: red;');
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red; border-color: red;" but found "background-color: red; border-color: red; margin: 1px;"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red; border-color: red;" but found "background-color: red; border-color: red; margin: 1px;"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/same-different-order/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/same-different-order/index.spec.js
index 679a0a7468..a52b033c1c 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/same-different-order/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/same-different-order/index.spec.js
@@ -20,10 +20,11 @@ export default {
             'margin: 1px; border-color: red; background-color: red;'
         );
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <p>: attribute "style" has different values, expected "margin: 1px; border-color: red; background-color: red;" but found "background-color: red; border-color: red; margin: 1px;"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <p>: attribute "style" has different values, expected "margin: 1px; border-color: red; background-color: red;" but found "background-color: red; border-color: red; margin: 1px;"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/unoptimized-different-priority/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/unoptimized-different-priority/index.spec.js
index 8be04b2c39..07b19edf44 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/unoptimized-different-priority/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/unoptimized-different-priority/index.spec.js
@@ -21,10 +21,11 @@ export default {
             'background-color: red; border-color: red !important;'
         );
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            '[LWC error]: Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red;border-color: red important!" but found "background-color: red; border-color: red"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                '[LWC error]: Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red;border-color: red important!" but found "background-color: red; border-color: red"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/unoptimized-extra-from-client/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/unoptimized-extra-from-client/index.spec.js
index cd7b26d0f8..3686e3640e 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/unoptimized-extra-from-client/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/unoptimized-extra-from-client/index.spec.js
@@ -21,10 +21,11 @@ export default {
             'background-color: red; border-color: red; margin: 1px;'
         );
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            '[LWC error]: Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red;border-color: red;margin: 1px" but found "background-color: red; border-color: red"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                '[LWC error]: Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red;border-color: red;margin: 1px" but found "background-color: red; border-color: red"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/unoptimized-extra-from-server/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/unoptimized-extra-from-server/index.spec.js
index bb2d95b84f..7ed546c1d6 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/unoptimized-extra-from-server/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/style-attr/static/unoptimized-extra-from-server/index.spec.js
@@ -19,10 +19,11 @@ export default {
         expect(p.getAttribute('style')).not.toBe(snapshots.style);
         expect(p.getAttribute('style')).toBe('background-color: red; border-color: red;');
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            '[LWC error]: Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red;border-color: red" but found "background-color: red; border-color: red; margin: 1px"'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                '[LWC error]: Mismatch hydrating element <p>: attribute "style" has different values, expected "background-color: red;border-color: red" but found "background-color: red; border-color: red; margin: 1px"',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/text-instead-of-comment/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/text-instead-of-comment/index.spec.js
index 2e614b659c..c8b044f4b1 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/text-instead-of-comment/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/text-instead-of-comment/index.spec.js
@@ -17,10 +17,11 @@ export default {
         expect(text.nodeType).toBe(Node.TEXT_NODE);
         expect(text.nodeValue).toBe(snapshots.comment.nodeValue);
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Hydration mismatch: incorrect node type received'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Hydration mismatch: incorrect node type received',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/textNode-instead-of-element/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/textNode-instead-of-element/index.spec.js
index 82b97d6a9b..c7eb6a8dae 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/textNode-instead-of-element/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/textNode-instead-of-element/index.spec.js
@@ -19,10 +19,11 @@ export default {
 
         expect(text.nodeType).toBe(Node.ELEMENT_NODE);
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            '[LWC error]: Hydration mismatch: incorrect node type received'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                '[LWC error]: Hydration mismatch: incorrect node type received',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/with-validation-opt-out/class-mismatch-excluded/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/with-validation-opt-out/class-mismatch-excluded/index.spec.js
index bc7dfa659f..25464f0543 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/with-validation-opt-out/class-mismatch-excluded/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/with-validation-opt-out/class-mismatch-excluded/index.spec.js
@@ -1,9 +1,10 @@
 export default {
     test(_target, _snapshots, consoleCalls) {
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Mismatch hydrating element <x-child>: attribute "class" has different values'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Mismatch hydrating element <x-child>: attribute "class" has different values',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };
diff --git a/packages/@lwc/integration-karma/test-hydration/mismatches/with-validation-opt-out/number-of-child-els/index.spec.js b/packages/@lwc/integration-karma/test-hydration/mismatches/with-validation-opt-out/number-of-child-els/index.spec.js
index f6d5988667..842a8a6974 100644
--- a/packages/@lwc/integration-karma/test-hydration/mismatches/with-validation-opt-out/number-of-child-els/index.spec.js
+++ b/packages/@lwc/integration-karma/test-hydration/mismatches/with-validation-opt-out/number-of-child-els/index.spec.js
@@ -14,10 +14,11 @@ export default {
         const hydratedSnapshot = this.snapshot(target);
         expect(hydratedSnapshot.childMarkup).not.toBe(snapshots.childMarkup);
 
-        expect(consoleCalls.error).toHaveSize(2);
-        expect(consoleCalls.error[0][0].message).toContain(
-            'Hydration mismatch: incorrect number of rendered nodes. Client produced more nodes than the server.'
-        );
-        expect(consoleCalls.error[1][0].message).toContain('Hydration completed with errors.');
+        TestUtils.expectConsoleCallsDev(consoleCalls, {
+            error: [
+                'Hydration mismatch: incorrect number of rendered nodes. Client produced more nodes than the server.',
+                'Hydration completed with errors.',
+            ],
+        });
     },
 };