Improve coverage for googlecharts.rb file

spec/adapters/googlecharts_spec.rb

@@ -3,25 +3,54 @@
 describe Daru::View::Plot, 'plotting with googlecharts' do
  before { Daru::View.plotting_library = :googlecharts }
  before(:each) do
- @data_array = [[1, 15], [2, 30], [4, 40]]
+ @data_array1 = [[1, 15], [2, 30], [4, 40]]
  @data_vec1 = Daru::Vector.new([1 ,2, 4])
  @data_vec2 = Daru::Vector.new([15 ,30, 40])
  @data_df = Daru::DataFrame.new(arr1: @data_vec1, arr2: @data_vec2)
-
  @options = {width: 800, height: 720}
 
  @plot = Daru::View::Plot.new(@data_df, @options)
+
+ @data_hash = {
+ cols: [
+ {id: 'Name', label: 'Name', type: 'string'},
+ {id: 'Salary', label: 'Salary', type: 'number'},
+ {type: 'boolean', label: 'Full Time Employee' },
+ ],
+ rows: [
+ {c:[{v: 'Mike'}, {v: 10000, f: '$10,000'}, {v: true}]},
+ {c:[{v: 'Jim'}, {v:8000, f: '$8,000'}, {v: false}]},
+ {c:[{v: 'Alice'}, {v: 12500, f: '$12,500'}, {v: true}]},
+ {c:[{v: 'Bob'}, {v: 7000, f: '$7,000'}, {v: true}]},
+ ]
+ }
+
+ @data_array2 = [
+ ['Galaxy', 'Distance', 'Brightness'],
+ ['Canis Major Dwarf', 8000, 230.3],
+ ['Sagittarius Dwarf', 24000, 4000.5],
+ ['Ursa Major II Dwarf', 30000, 1412.3],
+ ['Lg. Magellanic Cloud', 50000, 120.9],
+ ['Bootes I', 60000, 1223.1]
+ ]
  end
 
  describe "initialization Charts" do
  it "Default chart GoogleVisualr::Interactive::LineChart " do
- expect(Daru::View::Plot.new.chart).to be_a GoogleVisualr::Interactive::LineChart
+ expect(Daru::View::Plot.new.chart
+ ).to be_a GoogleVisualr::Interactive::LineChart
  end
  it "Bar chart GoogleVisualr::Interactive::BarChart " do
- expect(Daru::View::Plot.new([], type: :bar).chart).to be_a GoogleVisualr::Interactive::BarChart
+ expect(Daru::View::Plot.new(
+ [],
+ type: :bar).chart
+ ).to be_a GoogleVisualr::Interactive::BarChart
  end
  it "Column chart GoogleVisualr::Interactive::ColumnChart " do
- expect(Daru::View::Plot.new([], type: :column).chart).to be_a GoogleVisualr::Interactive::ColumnChart
+ expect(Daru::View::Plot.new(
+ [],
+ type: :column).chart
+ ).to be_a GoogleVisualr::Interactive::ColumnChart
  end
  # TODO: all other kinds of charts
  end
@@ -30,5 +59,62 @@
  it "Table class must be GoogleVisualr::DataTable " do
  expect(Daru::View::Table.new.table).to be_a GoogleVisualr::DataTable
  end
+ it "Table class must be GoogleVisualr::DataTable when data objects are" \
+ " of class Daru::Vector" do
+ expect(Daru::View::Table.new(
+ @data_vec1,
+ @options).table
+ ).to be_a GoogleVisualr::DataTable
+ expect(Daru::View::Table.new(
+ @data_vec1,
+ @options).options
+ ).to eq @options
+ expect(Daru::View::Table.new(
+ @data_vec1,
+ @options).data
+ ).to eq @data_vec1
+ end
+ it "Table class must be GoogleVisualr::DataTable when data objects are" \
+ " of class Daru::DataFrame" do
+ expect(Daru::View::Table.new(
+ @data_df,
+ @options).table
+ ).to be_a GoogleVisualr::DataTable
+ expect(Daru::View::Table.new(@data_df, @options).options).to eq @options
+ expect(Daru::View::Table.new(@data_df, @options).data).to eq @data_df
+ end
+ it "Table class must be GoogleVisualr::DataTable when data objects are" \
+ " of class Array" do
+ expect(Daru::View::Table.new(
+ @data_array2,
+ @options).table
+ ).to be_a GoogleVisualr::DataTable
+ expect(Daru::View::Table.new(
+ @data_array2,
+ @options).options
+ ).to eq @options
+ expect(Daru::View::Table.new(
+ @data_array2,
+ @options).data
+ ).to eq @data_array2
+ end
+ it "Table class must be GoogleVisualr::DataTable when data objects are" \
+ " of class Hash" do
+ expect(Daru::View::Table.new(
+ @data_hash,
+ @options).table
+ ).to be_a GoogleVisualr::DataTable
+ expect(Daru::View::Table.new(
+ @data_hash,
+ @options).options
+ ).to eq @options
+ expect(Daru::View::Table.new(
+ @data_hash,
+ @options).data
+ ).to eq @data_hash
+ end
+ it "Raise error when data objects are none of the above" do
+ expect{Daru::View::Table.new("daru")}.to raise_error(ArgumentError) 
+ end
  end
 end