277 lines
8.7 KiB
Ruby
277 lines
8.7 KiB
Ruby
require 'helper'
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describe Pry::WrappedModule do
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describe "#initialize" do
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it "should raise an exception when a non-module is passed" do
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lambda{ Pry::WrappedModule.new(nil) }.should.raise ArgumentError
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end
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end
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describe "candidates" do
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before do
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class Host
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%w(spec/fixtures/candidate_helper1.rb
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spec/fixtures/candidate_helper2.rb).each do |file|
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binding.eval File.read(file), file, 1
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end
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# rank 2
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class CandidateTest
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def test6
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end
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end
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class PitifullyBlank
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DEFAULT_TEST = CandidateTest
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end
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FOREVER_ALONE_LINE = __LINE__ + 1
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class ForeverAlone
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class DoublyNested
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# nested docs
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class TriplyNested
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def nested_method
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end
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end
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end
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end
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end
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end
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describe "number_of_candidates" do
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it 'should return the correct number of candidates' do
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Pry::WrappedModule(Host::CandidateTest).number_of_candidates.should == 3
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end
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it 'should return 0 candidates for a class with no nested modules or methods' do
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Pry::WrappedModule(Host::PitifullyBlank).number_of_candidates.should == 0
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end
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it 'should return 1 candidate for a class with a nested module with methods' do
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Pry::WrappedModule(Host::ForeverAlone).number_of_candidates.should == 1
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end
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end
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describe "ordering of candidates" do
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it 'should return class with largest number of methods as primary candidate' do
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Pry::WrappedModule(Host::CandidateTest).candidate(0).file.should =~ /helper1/
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end
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it 'should return class with second largest number of methods as second ranked candidate' do
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Pry::WrappedModule(Host::CandidateTest).candidate(1).file.should =~ /helper2/
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end
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it 'should return class with third largest number of methods as third ranked candidate' do
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Pry::WrappedModule(Host::CandidateTest).candidate(2).file.should =~ /#{__FILE__}/
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end
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it 'should raise when trying to access non-existent candidate' do
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lambda { Pry::WrappedModule(Host::CandidateTest).candidate(3) }.should.raise Pry::CommandError
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end
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end
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describe "source_location" do
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it 'should return primary candidates source_location by default' do
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wm = Pry::WrappedModule(Host::CandidateTest)
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wm.source_location.should == wm.candidate(0).source_location
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end
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it 'should return the location of the outer module if an inner module has methods' do
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wm = Pry::WrappedModule(Host::ForeverAlone)
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File.expand_path(wm.source_location.first).should == File.expand_path(__FILE__)
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wm.source_location.last.should == Host::FOREVER_ALONE_LINE
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end
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it 'should return nil if no source_location can be found' do
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Pry::WrappedModule(Host::PitifullyBlank).source_location.should == nil
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end
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end
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describe "source" do
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it 'should return primary candidates source by default' do
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wm = Pry::WrappedModule(Host::CandidateTest)
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wm.source.should == wm.candidate(0).source
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end
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it 'should return source for highest ranked candidate' do
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Pry::WrappedModule(Host::CandidateTest).candidate(0).source.should =~ /test1/
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end
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it 'should return source for second ranked candidate' do
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Pry::WrappedModule(Host::CandidateTest).candidate(1).source.should =~ /test4/
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end
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it 'should return source for third ranked candidate' do
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Pry::WrappedModule(Host::CandidateTest).candidate(2).source.should =~ /test6/
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end
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it 'should return source for deeply nested class' do
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Pry::WrappedModule(Host::ForeverAlone::DoublyNested::TriplyNested).source.should =~ /nested_method/
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Pry::WrappedModule(Host::ForeverAlone::DoublyNested::TriplyNested).source.lines.count.should == 4
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end
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end
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describe "doc" do
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it 'should return primary candidates doc by default' do
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wm = Pry::WrappedModule(Host::CandidateTest)
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wm.doc.should == wm.candidate(0).doc
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end
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it 'should return doc for highest ranked candidate' do
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Pry::WrappedModule(Host::CandidateTest).candidate(0).doc.should =~ /rank 0/
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end
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it 'should return doc for second ranked candidate' do
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Pry::WrappedModule(Host::CandidateTest).candidate(1).doc.should =~ /rank 1/
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end
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it 'should return doc for third ranked candidate' do
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Pry::WrappedModule(Host::CandidateTest).candidate(2).doc.should =~ /rank 2/
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end
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it 'should return docs for deeply nested class' do
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Pry::WrappedModule(Host::ForeverAlone::DoublyNested::TriplyNested).doc.should =~ /nested docs/
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end
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end
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after do
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Object.remove_const(:Host)
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end
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end
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describe ".method_prefix" do
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before do
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Foo = Class.new
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@foo = Foo.new
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end
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after do
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Object.remove_const(:Foo)
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end
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it "should return Foo# for normal classes" do
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Pry::WrappedModule.new(Foo).method_prefix.should == "Foo#"
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end
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it "should return Bar# for modules" do
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Pry::WrappedModule.new(Kernel).method_prefix.should == "Kernel#"
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end
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it "should return Foo. for singleton classes of classes" do
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Pry::WrappedModule.new(class << Foo; self; end).method_prefix.should == "Foo."
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end
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describe "of singleton classes of objects" do
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Pry::WrappedModule.new(class << @foo; self; end).method_prefix.should == "self."
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end
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describe "of anonymous classes should not be empty" do
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Pry::WrappedModule.new(Class.new).method_prefix.should =~ /#<Class:.*>#/
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end
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describe "of singleton classes of anonymous classes should not be empty" do
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Pry::WrappedModule.new(class << Class.new; self; end).method_prefix.should =~ /#<Class:.*>./
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end
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end
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describe ".singleton_class?" do
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it "should be true for singleton classes" do
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Pry::WrappedModule.new(class << ""; self; end).singleton_class?.should == true
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end
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it "should be false for normal classes" do
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Pry::WrappedModule.new(Class.new).singleton_class?.should == false
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end
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it "should be false for modules" do
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Pry::WrappedModule.new(Module.new).singleton_class?.should == false
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end
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end
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describe ".singleton_instance" do
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it "should raise an exception when called on a non-singleton-class" do
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lambda{ Pry::WrappedModule.new(Class).singleton_instance }.should.raise ArgumentError
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end
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it "should return the attached object" do
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Pry::WrappedModule.new(class << "hi"; self; end).singleton_instance.should == "hi"
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Pry::WrappedModule.new(class << Object; self; end).singleton_instance.should.equal?(Object)
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end
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end
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describe ".super" do
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describe "receiver is a class" do
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before do
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@a = Class.new
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@m = Module.new
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@b = Class.new(@a)
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@b.send(:include, @m)
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@c = Class.new(@b)
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end
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it 'should return superclass for a wrapped class' do
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Pry::WrappedModule(@c).super.wrapped.should == @b
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end
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it 'should return nth superclass for a wrapped class' do
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d = Class.new(@c)
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Pry::WrappedModule(d).super(2).wrapped.should == @b
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end
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it 'should ignore modules when retrieving nth superclass' do
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Pry::WrappedModule(@c).super(2).wrapped.should == @a
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end
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it 'should return nil when no nth superclass exists' do
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Pry::WrappedModule(@c).super(10).should == nil
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end
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it 'should return self when .super(0) is used' do
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c = Pry::WrappedModule(@c)
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c.super(0).should == c
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end
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end
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describe "receiver is a module" do
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before do
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@m1 = Module.new
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@m2 = Module.new.tap { |v| v.send(:include, @m1) }
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@m3 = Module.new.tap { |v| v.send(:include, @m2) }
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end
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it 'should not ignore modules when retrieving supers' do
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Pry::WrappedModule(@m3).super.wrapped.should == @m2
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end
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it 'should retrieve nth super' do
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Pry::WrappedModule(@m3).super(2).wrapped.should == @m1
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end
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it 'should return self when .super(0) is used' do
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m = Pry::WrappedModule(@m1)
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m.super(0).should == m
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end
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end
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end
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describe ".from_str" do
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it 'should lookup a constant' do
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m = Pry::WrappedModule.from_str("Host::CandidateTest", binding)
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m.wrapped.should == Host::CandidateTest
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end
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it 'should lookup a local' do
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local = Host::CandidateTest
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m = Pry::WrappedModule.from_str("local", binding)
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m.wrapped.should == Host::CandidateTest
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end
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it 'should lookup an ivar' do
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@ivar = Host::CandidateTest
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m = Pry::WrappedModule.from_str("@ivar", binding)
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m.wrapped.should == Host::CandidateTest
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end
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end
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end
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