How to use is_a method of RR.DSL Package

Best Rr_ruby code snippet using RR.DSL.is_a

spy_verification_spec.rb

Source:spy_verification_spec.rb Github

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...55 context "when the number of times the subject received a method is not specified" do56 context "when there is a wildcard match one time" do57 it "verifies that the method with arguments was called once" do58 subject.foobar(1, 2)59 received(subject).foobar(1, is_a(Fixnum)).call60 subject.foobar(1, 2)61 expect {62 received(subject).foobar(1, is_a(Fixnum)).call63 }.to raise_error(RR::Errors::SpyVerificationErrors::InvocationCountError)64 end65 end66 end67 context "when the number of times the subject received a method is specified" do68 context "as one time" do69 it "verifies that the method with arugments was called once" do70 subject.foobar(1, 2)71 received(subject).foobar(1, is_a(Fixnum)).once.call72 subject.foobar(1, 2)73 expect {74 received(subject).foobar(1, is_a(Fixnum)).once.call75 }.to raise_error(RR::Errors::SpyVerificationErrors::InvocationCountError)76 end77 end78 context "as an at least matcher" do79 it "verifies that the method with arugments was called at least the specified number of times" do80 subject.foobar(1, is_a(Fixnum))81 expect {82 received(subject).foobar(1, is_a(Fixnum)).at_least(2).call83 }.to raise_error(RR::Errors::SpyVerificationErrors::InvocationCountError)84 subject.foobar(1, 2)85 received(subject).foobar(1, is_a(Fixnum)).at_least(2).call86 subject.foobar(1, 2)87 received(subject).foobar(1, is_a(Fixnum)).at_least(2).call88 end89 end90 end91 end92 context "when checking for ordering" do93 it "when the order is incorrect; raises an error" do94 subject.foobar(3, 4)95 subject.foobar(1, 2)96 expect {97 received(subject).foobar(1, 2).ordered.call98 received(subject).foobar(3, 4).ordered.call99 }.to raise_error(RR::Errors::SpyVerificationErrors::InvocationCountError)100 end101 it "when the order is correct; does not raise an error" do...

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wildcard_matchers.rb

Source:wildcard_matchers.rb Github

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...28matches the same things as self, so a natural way to write DivisibleBy#== is:29 class RR::WildcardMatchers::DivisibleBy30 def ==(other)31 # Ensure that other is actually a DivisibleBy32 return false unless other.is_a?(self.class)33 # Does other expect to match the same divisor we do?34 self.expected_divisor = other.expected_divisor35 end36 end37Note that this implementation of #== assumes that we've also declared38 attr_reader :expected_divisor39=== #inspect40Technically we don't have to declare DivisibleBy#inspect, since inspect is41defined for every object already. But putting a helpful message in inspect42will make test failures much clearer, and it only takes about two seconds to43write it, so let's be nice and do so:44 class RR::WildcardMatchers::DivisibleBy45 def inspect46 "integer divisible by #{expected.divisor}"47 end48 end49Now if we run the example from above:50 mock(BananaGrabber).bunch_bananas(divisible_by(5))51and it fails, we get a helpful message saying52 bunch_bananas(integer divisible by 5)53 Called 0 times.54 Expected 1 times.55=== #wildcard_matches?(other)56wildcard_matches? is the method that actually checks the argument against the57expectation. It should return true if other is considered to match,58false otherwise. In the case of DivisibleBy, wildcard_matches? reads:59 class RR::WildcardMatchers::DivisibleBy60 def wildcard_matches?(other)61 # If other isn't a number, how can it be divisible by anything?62 return false unless other.is_a?(Numeric)63 # If other is in fact divisible by expected_divisor, then64 # other modulo expected_divisor should be 0.65 other % expected_divisor == 066 end67 end68=== A finishing touch: wrapping it neatly69We could stop here if we were willing to resign ourselves to using70DivisibleBy this way:71 mock(BananaGrabber).bunch_bananas(DivisibleBy.new(5))72But that's less expressive than the original:73 mock(BananaGrabber).bunch_bananas(divisible_by(5))74To be able to use the convenient divisible_by matcher rather than the uglier75DivisibleBy.new version, re-open the module RR::DSL and define divisible_by76there as a simple wrapper around DivisibleBy.new:77 module RR::DSL78 def divisible_by(expected_divisor)79 RR::WildcardMatchers::DivisibleBy.new(expected_divisor)80 end81 end82== Recap83Here's all the code for DivisibleBy in one place for easy reference:84 class RR::WildcardMatchers::DivisibleBy85 def initialize(divisor)86 @expected_divisor = divisor87 end88 def ==(other)89 # Ensure that other is actually a DivisibleBy90 return false unless other.is_a?(self.class)91 # Does other expect to match the same divisor we do?92 self.expected_divisor = other.expected_divisor93 end94 def inspect95 "integer divisible by #{expected.divisor}"96 end97 def wildcard_matches?(other)98 # If other isn't a number, how can it be divisible by anything?99 return false unless other.is_a?(Numeric)100 # If other is in fact divisible by expected_divisor, then101 # other modulo expected_divisor should be 0.102 other % expected_divisor == 0103 end104 end105 module RR::DSL106 def divisible_by(expected_divisor)107 RR::WildcardMatchers::DivisibleBy.new(expected_divisor)108 end109 end110=end111module RR::WildcardMatchers112end...

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wildcard_matchers_spec.rb

Source:wildcard_matchers_spec.rb Github

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...9 it "rr_anything returns an Anything matcher" do10 expect(rr_anything).to eq RR::WildcardMatchers::Anything.new11 end12 end13 describe "#is_a" do14 it "returns an IsA matcher" do15 expect(is_a(Integer)).to eq RR::WildcardMatchers::IsA.new(Integer)16 end17 it "rr_is_a returns an IsA matcher" do18 expect(rr_is_a(Integer)).to eq RR::WildcardMatchers::IsA.new(Integer)19 end20 end21 describe "#numeric" do22 it "returns an Numeric matcher" do23 expect(numeric).to eq RR::WildcardMatchers::Numeric.new24 end25 it "rr_numeric returns an Numeric matcher" do26 expect(rr_numeric).to eq RR::WildcardMatchers::Numeric.new27 end28 end29 describe "#boolean" do30 it "returns an Boolean matcher" do31 expect(boolean).to eq RR::WildcardMatchers::Boolean.new32 end...

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is_a

Using AI Code Generation

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1 mock(Foo).foo2 mock(Bar).bar3 mock(Baz).baz4 mock(Qux).qux5 mock(Test).test6 assert foo.is_a?(Foo)7 assert bar.is_a?(Bar)8 assert baz.is_a?(Baz)9 assert qux.is_a?(Qux)10 assert test.is_a?(Test)11 mock(Foo).foo12 mock(Bar).bar13 mock(Baz).baz14 mock(Qux).qux15 mock(Test).test16 stub(test).is_a?(Test) { true }17 assert test.is_a?(Test)

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is_a

Using AI Code Generation

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1 def foo; end2 def bar; end3 mock(Foo).foo4 def foo; end5 def bar; end6 mock.proxy(Foo).foo7 def foo; end8 def bar; end9 mock(Foo).foo10 def foo; end11 def bar; end12 stub.proxy(Foo).foo13 def foo; end14 def bar; end15 spy.proxy(Foo).foo

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is_a

Using AI Code Generation

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1 mock(Object).foo(is_a(String))2 Object.foo('hello')3ruby 1.8.6 (2007-09-24 patchlevel 111) [i686-darwin9.4.0]4rr (0.9.0)5test-unit (1.2.3)6rubygems-update (1.3.6)7rubygems (1.3.7)8 mock(Object).foo(is_a(String))9 Object.foo('hello')10test_is_a(TestIsA):

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is_a

Using AI Code Generation

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1 RR.mock(Foo).bar { 1 }2 RR.mock(Bar).bar { 2 }3 RR.mock(Baz).bar { 3 }4 RR.mock(Qux).bar { 4 }5 RR.verify { Foo.is_a?(Foo) }6 RR.verify { Bar.is_a?(Foo) }7 RR.verify { Baz.is_a?(Foo) }8 RR.verify { Qux.is_a?(Foo) }9 RR.verify { Foo.is_a?(Bar) }10 RR.verify { Bar.is_a?(Bar) }11 RR.verify { Baz.is_a?(Bar) }12 RR.verify { Qux.is_a?(Bar) }13 RR.verify { Foo.is_a?(Baz) }14 RR.verify { Bar.is_a?(Baz) }15 RR.verify { Baz.is_a?(Baz) }16 RR.verify { Qux.is_a?(Baz) }17 RR.verify { Foo.is_a?(Qux) }18 RR.verify { Bar.is_a?(Qux) }19 RR.verify { Baz.is_a?(Qux) }20 RR.verify { Qux.is_a?(Qux) }

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is_a

Using AI Code Generation

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1 mock(Object).new { Object.new }2 assert Object.new.is_a?(Object)3 mock(Object).new { Object.new }4 assert Object.new.is_a?(Object)

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is_a

Using AI Code Generation

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1 RR::DSL.is_a(A).method1.should == "method1"2 RR::DSL.is_a(B).method2.should == "method2"3 RR::DSL.is_a(C).method3.should == "method3"4 RR::DSL.is_a(D).method4.should == "method4"

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is_a

Using AI Code Generation

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1puts obj.is_a?(MyClass)2puts obj.is_a?(Object)3puts obj.is_a?(String)4puts obj.is_a?(Integer)5puts obj.is_a?(Array)6puts obj.is_a?(Hash)7puts obj.is_a?(Symbol)8puts obj.is_a?(NilClass)9puts obj.is_a?(TrueClass)10puts obj.is_a?(FalseClass)11puts obj.is_a?(Numeric)12puts obj.is_a?(Comparable)13puts obj.is_a?(Enumerable)14puts obj.is_a?(Kernel)15puts obj.is_a?(BasicObject)

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