diff options
Diffstat (limited to 'spec/ruby/core/hash/to_proc_spec.rb')
| -rw-r--r-- | spec/ruby/core/hash/to_proc_spec.rb | 124 |
1 files changed, 63 insertions, 61 deletions
diff --git a/spec/ruby/core/hash/to_proc_spec.rb b/spec/ruby/core/hash/to_proc_spec.rb index b486d188b7..bc4756600d 100644 --- a/spec/ruby/core/hash/to_proc_spec.rb +++ b/spec/ruby/core/hash/to_proc_spec.rb @@ -1,89 +1,91 @@ -require File.expand_path('../../../spec_helper', __FILE__) -require File.expand_path('../fixtures/classes', __FILE__) +require_relative '../../spec_helper' +require_relative 'fixtures/classes' + +describe "Hash#to_proc" do + before :each do + @key = Object.new + @value = Object.new + @hash = { @key => @value } + @default = Object.new + @unstored = Object.new + end + + it "returns an instance of Proc" do + @hash.to_proc.should.instance_of? Proc + end -ruby_version_is "2.3" do - describe "Hash#to_proc" do + describe "the returned proc" do before :each do - @key = Object.new - @value = Object.new - @hash = { @key => @value } - @default = Object.new - @unstored = Object.new + @proc = @hash.to_proc end - it "returns an instance of Proc" do - @hash.to_proc.should be_an_instance_of Proc + it "is a lambda" do + @proc.should.lambda? end - describe "the returned proc" do - before :each do - @proc = @hash.to_proc - end + it "has an arity of 1" do + @proc.arity.should == 1 + end - it "is not a lambda" do - @proc.lambda?.should == false - end + it "raises ArgumentError if not passed exactly one argument" do + -> { + @proc.call + }.should.raise(ArgumentError) - it "raises ArgumentError if not passed exactly one argument" do - lambda { - @proc.call - }.should raise_error(ArgumentError) + -> { + @proc.call 1, 2 + }.should.raise(ArgumentError) + end - lambda { - @proc.call 1, 2 - }.should raise_error(ArgumentError) + context "with a stored key" do + it "returns the paired value" do + @proc.call(@key).should.equal?(@value) end + end - context "with a stored key" do - it "returns the paired value" do - @proc.call(@key).should equal(@value) - end + context "passed as a block" do + it "retrieves the hash's values" do + [@key].map(&@proc)[0].should.equal?(@value) end - context "passed as a block" do - it "retrieves the hash's values" do - [@key].map(&@proc)[0].should equal(@value) - end - - context "to instance_exec" do - it "always retrieves the original hash's values" do - hash = {foo: 1, bar: 2} - proc = hash.to_proc + context "to instance_exec" do + it "always retrieves the original hash's values" do + hash = {foo: 1, bar: 2} + proc = hash.to_proc - hash.instance_exec(:foo, &proc).should == 1 + hash.instance_exec(:foo, &proc).should == 1 - hash2 = {quux: 1} - hash2.instance_exec(:foo, &proc).should == 1 - end + hash2 = {quux: 1} + hash2.instance_exec(:foo, &proc).should == 1 end end + end - context "with no stored key" do - it "returns nil" do - @proc.call(@unstored).should be_nil - end - - context "when the hash has a default value" do - before :each do - @hash.default = @default - end + context "with no stored key" do + it "returns nil" do + @proc.call(@unstored).should == nil + end - it "returns the default value" do - @proc.call(@unstored).should equal(@default) - end + context "when the hash has a default value" do + before :each do + @hash.default = @default end - context "when the hash has a default proc" do - it "returns an evaluated value from the default proc" do - @hash.default_proc = -> hash, called_with { [hash.keys, called_with] } - @proc.call(@unstored).should == [[@key], @unstored] - end + it "returns the default value" do + @proc.call(@unstored).should.equal?(@default) end end - it "raises an ArgumentError when calling #call on the Proc with no arguments" do - lambda { @hash.to_proc.call }.should raise_error(ArgumentError) + context "when the hash has a default proc" do + it "returns an evaluated value from the default proc" do + @hash.default_proc = -> hash, called_with { [hash.keys, called_with] } + @proc.call(@unstored).should == [[@key], @unstored] + end end end + + it "raises an ArgumentError when calling #call on the Proc with no arguments" do + -> { @hash.to_proc.call }.should.raise(ArgumentError) + end end end |
