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require 'spec_helper'
describe MethodSource do
describe "source_location (testing 1.8 implementation)" do
it 'should return correct source_location for a method' do
expect(method(:hello).source_location.first).to match(/spec_helper/)
end
it 'should not raise for immediate instance methods' do
[Symbol, Integer, TrueClass, FalseClass, NilClass].each do |immediate_class|
expect do
immediate_class.instance_method(:to_s).source_location
end.not_to raise_error
end
end
it 'should not raise for immediate methods' do
[:a, 1, true, false, nil].each do |immediate|
expect do
immediate.method(:to_s).source_location
end.not_to raise_error
end
end
end
before do
@hello_module_source = " def hello; :hello_module; end\n"
@hello_singleton_source = "def $o.hello; :hello_singleton; end\n"
@hello_source = "def hello; :hello; end\n"
@hello_comment = "# A comment for hello\n# It spans two lines and is indented by 2 spaces\n"
@lambda_comment = "# This is a comment for MyLambda\n"
@module_comment = "# This is a comment for module\n"
@class_comment = "# This is a comment for class\n"
@lambda_source = "MyLambda = lambda { :lambda }\n"
@proc_source = "MyProc = Proc.new { :proc }\n"
@hello_instance_evaled_source = " def hello_\#{name}(*args)\n send_mesg(:\#{name}, *args)\n end\n"
@hello_instance_evaled_source_2 = " def \#{name}_two()\n if 40 + 4\n 45\n end\n end\n"
@hello_class_evaled_source = " def hello_\#{name}(*args)\n send_mesg(:\#{name}, *args)\n end\n"
@hi_module_evaled_source = " def hi_\#{name}\n @var = \#{name}\n end\n"
end
it 'should define methods on Method and UnboundMethod and Proc' do
expect(Method.method_defined?(:source)).to be_truthy
expect(UnboundMethod.method_defined?(:source)).to be_truthy
expect(Proc.method_defined?(:source)).to be_truthy
end
describe "Methods" do
it 'should return source for method' do
expect(method(:hello).source).to eq(@hello_source)
end
it 'should return source for a method defined in a module' do
expect(M.instance_method(:hello).source).to eq(@hello_module_source)
end
it 'should return source for a singleton method as an instance method' do
expect(class << $o
self
end.instance_method(:hello).source).to eq(@hello_singleton_source)
end
it 'should return source for a singleton method' do
expect($o.method(:hello).source).to eq(@hello_singleton_source)
end
it 'should return a comment for method' do
expect(method(:hello).comment).to eq(@hello_comment)
end
# These tests fail because of http://jira.codehaus.org/browse/JRUBY-4576
unless defined?(RUBY_ENGINE) && RUBY_ENGINE == "jruby"
it 'should return source for an *_evaled method' do
expect(M.method(:hello_name).source).to eq(@hello_instance_evaled_source)
expect(M.method(:name_two).source).to eq(@hello_instance_evaled_source_2)
expect(M.instance_method(:hello_name).source).to eq(@hello_class_evaled_source)
expect(M.instance_method(:hi_name).source).to eq(@hi_module_evaled_source)
end
end
it "should raise error for evaled methods that do not pass __FILE__ and __LINE__ + 1 as its arguments" do
expect do
M.instance_method(:name_three).source
end.to raise_error(MethodSource::SourceNotFoundError)
end
if !is_rbx?
it 'should raise for C methods' do
expect do
method(:puts).source
end.to raise_error(MethodSource::SourceNotFoundError)
end
end
end
# if RUBY_VERSION =~ /1.9/ || is_rbx?
describe "Lambdas and Procs" do
it 'should return source for proc' do
expect(MyProc.source).to eq(@proc_source)
end
it 'should return an empty string if there is no comment' do
expect(MyProc.comment).to eq('')
end
it 'should return source for lambda' do
expect(MyLambda.source).to eq(@lambda_source)
end
it 'should return comment for lambda' do
expect(MyLambda.comment).to eq(@lambda_comment)
end
it 'should return comment for module' do
expect(M.instance_method(:hello).module_comment).to eq(@module_comment)
end
it 'should return comment for class' do
expect(C.method(:hello).class_comment).to eq(@class_comment)
end
it 'should return comment for class instance' do
expect(C.new.method(:hello).class_comment).to eq(@class_comment)
end
end
# end
describe "Comment tests" do
before do
@comment1 = "# a\n# b\n"
@comment2 = "# a\n# b\n"
@comment3 = "# a\n#\n# b\n"
@comment4 = "# a\n# b\n"
@comment5 = "# a\n# b\n# c\n# d\n"
end
it "should correctly extract multi-line comments" do
expect(method(:comment_test1).comment).to eq(@comment1)
end
it "should correctly strip leading whitespace before comments" do
expect(method(:comment_test2).comment).to eq(@comment2)
end
it "should keep empty comment lines" do
expect(method(:comment_test3).comment).to eq(@comment3)
end
it "should ignore blank lines between comments" do
expect(method(:comment_test4).comment).to eq(@comment4)
end
it "should align all comments to same indent level" do
expect(method(:comment_test5).comment).to eq(@comment5)
end
end
end
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