Add unordered array matcher
This commit is contained in:
Michael Miller
parent
3ff5b2ac5e
commit
19d52ff02b
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@ -1,6 +1,29 @@
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require "../spec_helper"
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describe Spectator::Matchers::ArrayMatcher do
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describe "#in_any_order" do
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it "returns an unordered matcher" do
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array = %i[x y z]
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matcher = Spectator::Matchers::ArrayMatcher.new(array)
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matcher.in_any_order.should be_a(Spectator::Matchers::UnorderedArrayMatcher(Symbol))
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end
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it "maintains the expected array" do
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array = %i[x y z]
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matcher = Spectator::Matchers::ArrayMatcher.new(array)
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unordered_matcher = matcher.in_any_order
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unordered_matcher.expected.should eq(array)
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end
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it "maintains the expected label" do
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array = %i[x y z]
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label = "some_array"
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matcher = Spectator::Matchers::ArrayMatcher.new(array, label)
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unordered_matcher = matcher.in_any_order
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unordered_matcher.label.should eq(label)
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end
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end
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describe "#match" do
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context "returned MatchData" do
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context "with identical arrays" do
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@ -0,0 +1,474 @@
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require "../spec_helper"
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describe Spectator::Matchers::UnorderedArrayMatcher do
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describe "#match" do
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context "returned MatchData" do
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context "with identical arrays" do
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describe "#matched?" do
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it "is true" do
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array = %i[a b c]
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partial = new_partial(array)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array)
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match_data = matcher.match(partial)
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match_data.matched?.should be_true
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end
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end
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describe "#values" do
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context "expected" do
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it "is the expected array" do
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array = %i[a b c]
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partial = new_partial(array)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array)
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match_data = matcher.match(partial)
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match_data_value_sans_prefix(match_data.values, :expected)[:value].should eq(array)
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end
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end
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context "actual" do
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it "is the actual array" do
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array = %i[a b c]
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partial = new_partial(array)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array)
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match_data = matcher.match(partial)
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match_data_value_sans_prefix(match_data.values, :actual)[:value].should eq(array)
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end
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end
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end
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describe "#message" do
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it "contains the actual label" do
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array = %i[a b c]
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label = "everything"
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partial = new_partial(array, label)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array)
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match_data = matcher.match(partial)
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match_data.message.should contain(label)
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end
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it "contains the expected label" do
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array = %i[a b c]
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label = "everything"
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partial = new_partial(array)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array, label)
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match_data = matcher.match(partial)
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match_data.message.should contain(label)
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end
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context "when expected label is omitted" do
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it "contains stringified form of expected array" do
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array1 = %i[a b c]
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array2 = [1, 2, 3]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.message.should contain(array2.to_s)
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end
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end
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end
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describe "#negated_message" do
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it "contains the actual label" do
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array = %i[a b c]
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label = "everything"
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partial = new_partial(array, label)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array)
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match_data = matcher.match(partial)
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match_data.negated_message.should contain(label)
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end
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it "contains the expected label" do
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array = %i[a b c]
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label = "everything"
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partial = new_partial(array)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array, label)
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match_data = matcher.match(partial)
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match_data.negated_message.should contain(label)
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end
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context "when expected label is omitted" do
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it "contains stringified form of expected array" do
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array1 = %i[a b c]
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array2 = [1, 2, 3]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.negated_message.should contain(array2.to_s)
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end
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end
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end
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end
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context "with identical unordered arrays" do
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describe "#matched?" do
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it "is true" do
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array1 = %i[a b c]
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array2 = %i[c a b]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.matched?.should be_true
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end
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end
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describe "#values" do
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context "expected" do
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it "is the expected array" do
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array1 = %i[a b c]
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array2 = %i[c a b]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data_value_sans_prefix(match_data.values, :expected)[:value].should eq(array2)
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end
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end
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context "actual" do
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it "is the actual array" do
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array1 = %i[a b c]
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array2 = %i[c a b]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data_value_sans_prefix(match_data.values, :actual)[:value].should eq(array1)
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end
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end
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end
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describe "#message" do
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it "contains the actual label" do
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array1 = %i[a b c]
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array2 = %i[c a b]
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label = "everything"
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partial = new_partial(array1, label)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.message.should contain(label)
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end
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it "contains the expected label" do
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array1 = %i[a b c]
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array2 = %i[c a b]
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label = "everything"
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2, label)
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match_data = matcher.match(partial)
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match_data.message.should contain(label)
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end
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context "when expected label is omitted" do
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it "contains stringified form of expected array" do
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array1 = %i[a b c]
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array2 = %i[c a b]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.message.should contain(array2.to_s)
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end
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end
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end
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describe "#negated_message" do
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it "contains the actual label" do
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array1 = %i[a b c]
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array2 = %i[c a b]
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label = "everything"
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partial = new_partial(array1, label)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.negated_message.should contain(label)
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end
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it "contains the expected label" do
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array1 = %i[a b c]
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array2 = %i[c a b]
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label = "everything"
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2, label)
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match_data = matcher.match(partial)
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match_data.negated_message.should contain(label)
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end
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context "when expected label is omitted" do
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it "contains stringified form of expected array" do
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array1 = %i[a b c]
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array2 = %i[c a b]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.negated_message.should contain(array2.to_s)
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end
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end
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end
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end
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context "with arrays differing in size" do
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describe "#matched?" do
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it "is false" do
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array1 = %i[a b c d e]
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array2 = %i[a c e f]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.matched?.should be_false
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end
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end
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describe "#values" do
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context "expected" do
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it "is the expected array" do
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array1 = %i[a b c d e]
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array2 = %i[a c e f]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data_value_sans_prefix(match_data.values, :expected)[:value].should eq(array2)
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end
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end
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context "actual" do
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it "is the actual array" do
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array1 = %i[a b c d e]
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array2 = %i[a c e f]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data_value_sans_prefix(match_data.values, :actual)[:value].should eq(array1)
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end
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end
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context "missing" do
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it "is the missing items" do
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array1 = %i[a b c d e]
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array2 = %i[a c e f]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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missing = match_data_value_sans_prefix(match_data.values, :missing)[:value].as(typeof(array2))
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missing.should contain(:f)
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end
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end
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context "extra" do
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it "is the extra items" do
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array1 = %i[a b c d e]
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array2 = %i[a c e f]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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extra = match_data_value_sans_prefix(match_data.values, :extra)[:value].as(typeof(array1))
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extra.should contain(:b)
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extra.should contain(:d)
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end
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end
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end
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describe "#message" do
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it "contains the actual label" do
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array1 = %i[a b c d e]
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array2 = %i[a c e f]
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label = "everything"
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partial = new_partial(array1, label)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.message.should contain(label)
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end
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it "contains the expected label" do
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array1 = %i[a b c d e]
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array2 = %i[a c e f]
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label = "everything"
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2, label)
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match_data = matcher.match(partial)
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match_data.message.should contain(label)
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end
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context "when expected label is omitted" do
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it "contains stringified form of expected array" do
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array1 = %i[a b c d e]
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array2 = %i[a c e f]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.message.should contain(array2.to_s)
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end
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end
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end
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describe "#negated_message" do
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it "contains the actual label" do
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array1 = %i[a b c d e]
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array2 = %i[a c e f]
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label = "everything"
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partial = new_partial(array1, label)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.negated_message.should contain(label)
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end
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it "contains the expected label" do
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array1 = %i[a b c d e]
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array2 = %i[a c e f]
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label = "everything"
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2, label)
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match_data = matcher.match(partial)
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match_data.negated_message.should contain(label)
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end
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context "when expected label is omitted" do
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it "contains stringified form of expected array" do
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array1 = %i[a b c d e]
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array2 = %i[a c e f]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.negated_message.should contain(array2.to_s)
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end
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end
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end
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end
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context "with arrays differing in content" do
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describe "#matched?" do
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it "is false" do
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array1 = %i[a b c]
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array2 = %i[x y z]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.matched?.should be_false
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end
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end
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describe "#values" do
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context "expected" do
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it "is the expected array" do
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array1 = %i[a b c]
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array2 = %i[x y z]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data_value_sans_prefix(match_data.values, :expected)[:value].should eq(array2)
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end
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end
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context "actual" do
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it "is the actual array" do
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array1 = %i[a b c]
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array2 = %i[x y z]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data_value_sans_prefix(match_data.values, :actual)[:value].should eq(array1)
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end
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end
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context "missing" do
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it "is the missing items" do
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array1 = %i[a b c]
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array2 = %i[x y z]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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missing = match_data_value_sans_prefix(match_data.values, :missing)[:value].as(typeof(array2))
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missing.should contain(:x)
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missing.should contain(:y)
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missing.should contain(:z)
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end
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end
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context "extra" do
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it "is the extra items" do
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array1 = %i[a b c]
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array2 = %i[x y z]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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extra = match_data_value_sans_prefix(match_data.values, :extra)[:value].as(typeof(array1))
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extra.should contain(:a)
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extra.should contain(:b)
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extra.should contain(:c)
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end
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end
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end
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describe "#message" do
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it "contains the actual label" do
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array1 = %i[a b c]
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array2 = %i[x y z]
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label = "everything"
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partial = new_partial(array1, label)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.message.should contain(label)
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end
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it "contains the expected label" do
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array1 = %i[a b c]
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array2 = %i[x y z]
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label = "everything"
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2, label)
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match_data = matcher.match(partial)
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match_data.message.should contain(label)
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end
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context "when expected label is omitted" do
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it "contains stringified form of expected array" do
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array1 = %i[a b c]
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array2 = %i[x y z]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.message.should contain(array2.to_s)
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end
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end
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end
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describe "#negated_message" do
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it "mentions content" do
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array1 = %i[a b c]
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array2 = %i[x y z]
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partial = new_partial(array1)
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matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
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match_data = matcher.match(partial)
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match_data.negated_message.should contain("content")
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end
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|
||||
it "contains the actual label" do
|
||||
array1 = %i[a b c]
|
||||
array2 = %i[x y z]
|
||||
label = "everything"
|
||||
partial = new_partial(array1, label)
|
||||
matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
|
||||
match_data = matcher.match(partial)
|
||||
match_data.negated_message.should contain(label)
|
||||
end
|
||||
|
||||
it "contains the expected label" do
|
||||
array1 = %i[a b c]
|
||||
array2 = %i[x y z]
|
||||
label = "everything"
|
||||
partial = new_partial(array1)
|
||||
matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2, label)
|
||||
match_data = matcher.match(partial)
|
||||
match_data.negated_message.should contain(label)
|
||||
end
|
||||
|
||||
context "when expected label is omitted" do
|
||||
it "contains stringified form of expected array" do
|
||||
array1 = %i[a b c]
|
||||
array2 = %i[x y z]
|
||||
partial = new_partial(array1)
|
||||
matcher = Spectator::Matchers::UnorderedArrayMatcher.new(array2)
|
||||
match_data = matcher.match(partial)
|
||||
match_data.negated_message.should contain(array2.to_s)
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -1,4 +1,5 @@
|
|||
require "./value_matcher"
|
||||
require "./unordered_array_matcher"
|
||||
|
||||
module Spectator::Matchers
|
||||
# Matcher for checking that the contents of one array (or similar type)
|
||||
|
|
@ -35,6 +36,17 @@ module Spectator::Matchers
|
|||
super
|
||||
end
|
||||
|
||||
# Returns a matcher that uses the same expected array, but allows unordered items.
|
||||
def in_any_order
|
||||
UnorderedArrayMatcher.new(@expected, @label)
|
||||
end
|
||||
|
||||
# Returns self.
|
||||
# Exists for syntax to ensure in-order matching is performed.
|
||||
def in_order
|
||||
self
|
||||
end
|
||||
|
||||
# Common functionality for all match data for this matcher.
|
||||
private abstract struct CommonMatchData(ExpectedType, ActualType) < MatchData
|
||||
# Creates the match data.
|
||||
|
|
|
|||
|
|
@ -0,0 +1,114 @@
|
|||
require "./value_matcher"
|
||||
|
||||
module Spectator::Matchers
|
||||
# Matcher for checking that the contents of one array (or similar type)
|
||||
# has the exact same contents as another, but in any order.
|
||||
struct UnorderedArrayMatcher(ExpectedType) < ValueMatcher(Array(ExpectedType))
|
||||
# Determines whether the matcher is satisfied with the partial given to it.
|
||||
# `MatchData` is returned that contains information about the match.
|
||||
def match(partial)
|
||||
actual = partial.actual.to_a
|
||||
missing, extra = array_diff(expected, actual)
|
||||
|
||||
values = ExpectedActual.new(expected, label, actual, partial.label)
|
||||
if missing.empty? && extra.empty?
|
||||
IdenticalMatchData.new(values)
|
||||
else
|
||||
ContentMatchData.new(values, missing, extra)
|
||||
end
|
||||
end
|
||||
|
||||
# Finds the difference of two unordered arrays.
|
||||
# Returns a tuple of arrays - missing from *actual* and extra in *actual*.
|
||||
private def array_diff(expected, actual)
|
||||
extra = actual.dup
|
||||
missing = [] of ExpectedType
|
||||
|
||||
# TODO: OPTIMIZE
|
||||
expected.each do |item|
|
||||
index = extra.index(item)
|
||||
if index
|
||||
extra.delete_at(index)
|
||||
else
|
||||
missing << item
|
||||
end
|
||||
end
|
||||
|
||||
{missing, extra}
|
||||
end
|
||||
|
||||
# Creates the value matcher.
|
||||
# The label should be a string representation of the expectation.
|
||||
# The expected value is stored for later use.
|
||||
def initialize(expected : Array(ExpectedType), label : String)
|
||||
super
|
||||
end
|
||||
|
||||
# Creates the value matcher.
|
||||
# The label is generated by calling `#to_s` on the expected value.
|
||||
# The expected value is stored for later use.
|
||||
def initialize(expected : Array(ExpectedType))
|
||||
super
|
||||
end
|
||||
|
||||
# Common functionality for all match data for this matcher.
|
||||
private abstract struct CommonMatchData(ExpectedType, ActualType) < MatchData
|
||||
# Creates the match data.
|
||||
def initialize(matched, @values : ExpectedActual(Array(ExpectedType), Array(ActualType)))
|
||||
super(matched)
|
||||
end
|
||||
|
||||
# Basic information about the match.
|
||||
def named_tuple
|
||||
{
|
||||
expected: NegatableMatchDataValue.new(@values.expected),
|
||||
actual: @values.actual,
|
||||
}
|
||||
end
|
||||
|
||||
# Describes the condition that satisfies the matcher.
|
||||
# This is informational and displayed to the end-user.
|
||||
def message
|
||||
"#{@values.actual_label} contains #{@values.expected_label} (unordered)"
|
||||
end
|
||||
end
|
||||
|
||||
# Match data specific to this matcher.
|
||||
# This type is used when the actual value matches the expected value.
|
||||
private struct IdenticalMatchData(ExpectedType, ActualType) < CommonMatchData(ExpectedType, ActualType)
|
||||
# Creates the match data.
|
||||
def initialize(values : ExpectedActual(Array(ExpectedType), Array(ActualType)))
|
||||
super(true, values)
|
||||
end
|
||||
|
||||
# Describes the condition that won't satsify the matcher.
|
||||
# This is informational and displayed to the end-user.
|
||||
def negated_message
|
||||
"#{@values.actual_label} does not contain #{@values.expected_label} (unordered)"
|
||||
end
|
||||
end
|
||||
|
||||
# Match data specific to this matcher.
|
||||
# This type is used when the actual contents differs from the expected contents.
|
||||
private struct ContentMatchData(ExpectedType, ActualType) < CommonMatchData(ExpectedType, ActualType)
|
||||
# Creates the match data.
|
||||
def initialize(values : ExpectedActual(Array(ExpectedType), Array(ActualType)), @missing : Array(ExpectedType), @extra : Array(ActualType))
|
||||
super(false, values)
|
||||
end
|
||||
|
||||
# Information about the match.
|
||||
def named_tuple
|
||||
super.merge({
|
||||
missing: @missing,
|
||||
extra: @extra,
|
||||
})
|
||||
end
|
||||
|
||||
# Describes the condition that won't satsify the matcher.
|
||||
# This is informational and displayed to the end-user.
|
||||
def negated_message
|
||||
"#{@values.actual_label} does not contain #{@values.expected_label} (content differs)"
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
Loading…
Reference in New Issue