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* Other ruby implementations use the spec/ruby directory. [Misc #13792] [ruby-core:82287] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
75 lines
2.3 KiB
Ruby
75 lines
2.3 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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describe "Range#min" do
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it "returns the minimum value in the range when called with no arguments" do
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(1..10).min.should == 1
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('f'..'l').min.should == 'f'
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end
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it "returns the minimum value in the Float range when called with no arguments" do
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(303.20..908.1111).min.should == 303.20
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end
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it "returns nil when the start point is greater than the endpoint" do
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(100..10).min.should be_nil
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('z'..'l').min.should be_nil
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end
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it "returns nil when the endpoint equals the start point and the range is exclusive" do
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(7...7).min.should be_nil
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end
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it "returns the start point when the endpoint equals the start point and the range is inclusive" do
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(7..7).min.should equal(7)
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end
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it "returns nil when the start point is greater than the endpoint in a Float range" do
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(3003.20..908.1111).min.should be_nil
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end
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it "returns start point when the range is Time..Time(included end point)" do
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time_start = Time.now
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time_end = Time.now + 1.0
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(time_start..time_end).min.should equal(time_start)
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end
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it "returns start point when the range is Time...Time(excluded end point)" do
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time_start = Time.now
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time_end = Time.now + 1.0
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(time_start...time_end).min.should equal(time_start)
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end
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end
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describe "Range#min given a block" do
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it "passes each pair of values in the range to the block" do
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acc = []
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(1..10).min {|a,b| acc << [a,b]; a }
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acc.flatten!
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(1..10).each do |value|
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acc.include?(value).should be_true
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end
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end
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it "passes each pair of elements to the block where the first argument is the current element, and the last is the first element" do
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acc = []
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(1..5).min {|a,b| acc << [a,b]; a }
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acc.should == [[2, 1], [3, 1], [4, 1], [5, 1]]
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end
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it "calls #> and #< on the return value of the block" do
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obj = mock('obj')
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obj.should_receive(:>).exactly(2).times
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obj.should_receive(:<).exactly(2).times
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(1..3).min {|a,b| obj }
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end
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it "returns the element the block determines to be the minimum" do
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(1..3).min {|a,b| -3 }.should == 3
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end
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it "returns nil when the start point is greater than the endpoint" do
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(100..10).min {|x,y| x <=> y}.should be_nil
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('z'..'l').min {|x,y| x <=> y}.should be_nil
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(7...7).min {|x,y| x <=> y}.should be_nil
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end
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end
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