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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
74 lines
2 KiB
Ruby
74 lines
2 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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require 'matrix'
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describe "Matrix#each" do
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before :all do
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@m = Matrix[ [1, 2, 3], [4, 5, 6] ]
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@result = (1..6).to_a
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end
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it "returns an Enumerator when called without a block" do
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enum = @m.each
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enum.should be_an_instance_of(Enumerator)
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enum.to_a.should == @result
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end
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it "returns self" do
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@m.each{}.should equal(@m)
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end
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it "yields the elements starting with the those of the first row" do
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a = []
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@m.each {|x| a << x}
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a.should == @result
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end
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end
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describe "Matrix#each with an argument" do
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before :all do
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@m = Matrix[ [1, 2, 3, 4], [5, 6, 7, 8] ]
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@t = Matrix[ [1, 2], [3, 4], [5, 6], [7, 8] ]
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end
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it "raises an ArgumentError for unrecognized argument" do
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lambda {
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@m.each("all"){}
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}.should raise_error(ArgumentError)
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lambda {
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@m.each(nil){}
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}.should raise_error(ArgumentError)
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lambda {
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@m.each(:left){}
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}.should raise_error(ArgumentError)
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end
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it "yields the rights elements when passed :diagonal" do
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@m.each(:diagonal).to_a.should == [1, 6]
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@t.each(:diagonal).to_a.should == [1, 4]
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end
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it "yields the rights elements when passed :off_diagonal" do
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@m.each(:off_diagonal).to_a.should == [2, 3, 4, 5, 7, 8]
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@t.each(:off_diagonal).to_a.should == [2, 3, 5, 6, 7, 8]
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end
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it "yields the rights elements when passed :lower" do
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@m.each(:lower).to_a.should == [1, 5, 6]
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@t.each(:lower).to_a.should == [1, 3, 4, 5, 6, 7, 8]
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end
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it "yields the rights elements when passed :strict_lower" do
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@m.each(:strict_lower).to_a.should == [5]
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@t.each(:strict_lower).to_a.should == [3, 5, 6, 7, 8]
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end
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it "yields the rights elements when passed :strict_upper" do
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@m.each(:strict_upper).to_a.should == [2, 3, 4, 7, 8]
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@t.each(:strict_upper).to_a.should == [2]
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end
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it "yields the rights elements when passed :upper" do
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@m.each(:upper).to_a.should == [1, 2, 3, 4, 6, 7, 8]
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@t.each(:upper).to_a.should == [1, 2, 4]
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end
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end
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