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401b64c4e8
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
40 lines
1.2 KiB
Ruby
40 lines
1.2 KiB
Ruby
require_relative '../../spec_helper'
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require_relative 'fixtures/classes'
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describe "Array#assoc" do
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it "returns the first array whose 1st item is == obj or nil" do
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s1 = ["colors", "red", "blue", "green"]
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s2 = [:letters, "a", "b", "c"]
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s3 = [4]
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s4 = ["colors", "cyan", "yellow", "magenda"]
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s5 = [:letters, "a", "i", "u"]
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s_nil = [nil, nil]
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a = [s1, s2, s3, s4, s5, s_nil]
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a.assoc(s1.first).should equal(s1)
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a.assoc(s2.first).should equal(s2)
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a.assoc(s3.first).should equal(s3)
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a.assoc(s4.first).should equal(s1)
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a.assoc(s5.first).should equal(s2)
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a.assoc(s_nil.first).should equal(s_nil)
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a.assoc(4).should equal(s3)
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a.assoc("key not in array").should be_nil
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end
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it "calls == on first element of each array" do
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key1 = 'it'
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key2 = mock('key2')
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items = [['not it', 1], [ArraySpecs::AssocKey.new, 2], ['na', 3]]
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items.assoc(key1).should equal(items[1])
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items.assoc(key2).should be_nil
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end
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it "ignores any non-Array elements" do
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[1, 2, 3].assoc(2).should be_nil
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s1 = [4]
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s2 = [5, 4, 3]
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a = ["foo", [], s1, s2, nil, []]
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a.assoc(s1.first).should equal(s1)
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a.assoc(s2.first).should equal(s2)
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end
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end
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