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* Add test cases for Enumerable#tally with hash argument * Add ruby/spec for Enumerable#tally with hash argument * Fix Enumerable#tally does not update given frozen hash * Add test cases for Enumerable#tally with hash convertible arguments * Fix SEGV when Enumerable#tally takes non Hash convertible * FIx cosmetic damage enum.c
82 lines
2.8 KiB
Ruby
82 lines
2.8 KiB
Ruby
require_relative '../../spec_helper'
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require_relative 'fixtures/classes'
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ruby_version_is "2.7" do
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describe "Enumerable#tally" do
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before :each do
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ScratchPad.record []
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end
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it "returns a hash with counts according to the value" do
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enum = EnumerableSpecs::Numerous.new('foo', 'bar', 'foo', 'baz')
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enum.tally.should == { 'foo' => 2, 'bar' => 1, 'baz' => 1}
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end
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it "returns a hash without default" do
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hash = EnumerableSpecs::Numerous.new('foo', 'bar', 'foo', 'baz').tally
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hash.default_proc.should be_nil
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hash.default.should be_nil
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end
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it "returns an empty hash for empty enumerables" do
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EnumerableSpecs::Empty.new.tally.should == {}
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end
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it "counts values as gathered array when yielded with multiple arguments" do
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EnumerableSpecs::YieldsMixed2.new.tally.should == EnumerableSpecs::YieldsMixed2.gathered_yields.group_by(&:itself).transform_values(&:size)
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end
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it "does not call given block" do
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enum = EnumerableSpecs::Numerous.new('foo', 'bar', 'foo', 'baz')
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enum.tally { |v| ScratchPad << v }
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ScratchPad.recorded.should == []
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end
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end
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end
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ruby_version_is "3.1" do
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describe "Enumerable#tally with a hash" do
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before :each do
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ScratchPad.record []
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end
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it "returns a hash with counts according to the value" do
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enum = EnumerableSpecs::Numerous.new('foo', 'bar', 'foo', 'baz')
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enum.tally({ 'foo' => 1 }).should == { 'foo' => 3, 'bar' => 1, 'baz' => 1}
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end
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it "returns the given hash" do
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enum = EnumerableSpecs::Numerous.new('foo', 'bar', 'foo', 'baz')
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hash = { 'foo' => 1 }
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enum.tally(hash).should equal(hash)
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end
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it "raises a FrozenError and does not udpate the given hash when the hash is frozen" do
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enum = EnumerableSpecs::Numerous.new('foo', 'bar', 'foo', 'baz')
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hash = { 'foo' => 1 }.freeze
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-> { enum.tally(hash) }.should raise_error(FrozenError)
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hash.should == { 'foo' => 1 }
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end
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it "does not call given block" do
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enum = EnumerableSpecs::Numerous.new('foo', 'bar', 'foo', 'baz')
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enum.tally({ 'foo' => 1 }) { |v| ScratchPad << v }
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ScratchPad.recorded.should == []
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end
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it "ignores the default value" do
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enum = EnumerableSpecs::Numerous.new('foo', 'bar', 'foo', 'baz')
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enum.tally(Hash.new(100)).should == { 'foo' => 2, 'bar' => 1, 'baz' => 1}
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end
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it "ignores the default proc" do
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enum = EnumerableSpecs::Numerous.new('foo', 'bar', 'foo', 'baz')
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enum.tally(Hash.new {100}).should == { 'foo' => 2, 'bar' => 1, 'baz' => 1}
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end
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it "needs the values counting each elements to be an integer" do
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enum = EnumerableSpecs::Numerous.new('foo')
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-> { enum.tally({ 'foo' => 'bar' }) }.should raise_error(TypeError)
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end
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end
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end
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