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* For easier modifications of ruby/spec by MRI developers. * .gitignore: track changes under spec. * spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec. These files can therefore be updated like any other file in MRI. Instructions are provided in spec/README. [Feature #13156] [ruby-core:79246] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
96 lines
2.9 KiB
Ruby
96 lines
2.9 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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describe :complex_rect, shared: true do
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before :each do
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@numbers = [
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Complex(1),
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Complex(0, 20),
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Complex(0, 0),
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Complex(0.0),
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Complex(9999999**99),
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Complex(-20),
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Complex.polar(76, 10)
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]
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end
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it "returns an Array" do
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@numbers.each do |number|
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number.send(@method).should be_an_instance_of(Array)
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end
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end
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it "returns a two-element Array" do
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@numbers.each do |number|
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number.send(@method).size.should == 2
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end
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end
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it "returns the real part of self as the first element" do
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@numbers.each do |number|
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number.send(@method).first.should == number.real
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end
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end
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it "returns the imaginary part of self as the last element" do
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@numbers.each do |number|
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number.send(@method).last.should == number.imaginary
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end
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end
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it "raises an ArgumentError if given any arguments" do
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@numbers.each do |number|
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lambda { number.send(@method, number) }.should raise_error(ArgumentError)
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end
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end
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end
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describe :complex_rect_class, shared: true do
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describe "passed a Numeric n which responds to #real? with true" do
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it "returns a Complex with real part n and imaginary part 0" do
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n = mock_numeric('n')
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n.should_receive(:real?).any_number_of_times.and_return(true)
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result = Complex.send(@method, n)
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result.real.should == n
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result.imag.should == 0
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end
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end
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describe "passed a Numeric which responds to #real? with false" do
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it "raises TypeError" do
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n = mock_numeric('n')
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n.should_receive(:real?).any_number_of_times.and_return(false)
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lambda { Complex.send(@method, n) }.should raise_error(TypeError)
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end
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end
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describe "passed Numerics n1 and n2 and at least one responds to #real? with false" do
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[[false, false], [false, true], [true, false]].each do |r1, r2|
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it "raises TypeError" do
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n1 = mock_numeric('n1')
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n2 = mock_numeric('n2')
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n1.should_receive(:real?).any_number_of_times.and_return(r1)
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n2.should_receive(:real?).any_number_of_times.and_return(r2)
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lambda { Complex.send(@method, n1, n2) }.should raise_error(TypeError)
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end
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end
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end
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describe "passed Numerics n1 and n2 and both respond to #real? with true" do
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it "returns a Complex with real part n1 and imaginary part n2" do
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n1 = mock_numeric('n1')
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n2 = mock_numeric('n2')
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n1.should_receive(:real?).any_number_of_times.and_return(true)
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n2.should_receive(:real?).any_number_of_times.and_return(true)
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result = Complex.send(@method, n1, n2)
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result.real.should == n1
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result.imag.should == n2
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end
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end
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describe "passed a non-Numeric" do
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it "raises TypeError" do
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lambda { Complex.send(@method, :sym) }.should raise_error(TypeError)
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lambda { Complex.send(@method, 0, :sym) }.should raise_error(TypeError)
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end
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end
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end
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