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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/source_location', __FILE__)
describe "Proc#source_location" do
before :each do
@proc = ProcSpecs::SourceLocation.my_proc
@lambda = ProcSpecs::SourceLocation.my_lambda
@proc_new = ProcSpecs::SourceLocation.my_proc_new
@method = ProcSpecs::SourceLocation.my_method
end
it "returns an Array" do
@proc.source_location.should be_an_instance_of(Array)
@proc_new.source_location.should be_an_instance_of(Array)
@lambda.source_location.should be_an_instance_of(Array)
@method.source_location.should be_an_instance_of(Array)
end
it "sets the first value to the path of the file in which the proc was defined" do
file = @proc.source_location.first
file.should be_an_instance_of(String)
file.should == File.dirname(__FILE__) + '/fixtures/source_location.rb'
file = @proc_new.source_location.first
file.should be_an_instance_of(String)
file.should == File.dirname(__FILE__) + '/fixtures/source_location.rb'
file = @lambda.source_location.first
file.should be_an_instance_of(String)
file.should == File.dirname(__FILE__) + '/fixtures/source_location.rb'
file = @method.source_location.first
file.should be_an_instance_of(String)
file.should == File.dirname(__FILE__) + '/fixtures/source_location.rb'
end
it "sets the last value to a Fixnum representing the line on which the proc was defined" do
line = @proc.source_location.last
line.should be_an_instance_of(Fixnum)
line.should == 4
line = @proc_new.source_location.last
line.should be_an_instance_of(Fixnum)
line.should == 12
line = @lambda.source_location.last
line.should be_an_instance_of(Fixnum)
line.should == 8
line = @method.source_location.last
line.should be_an_instance_of(Fixnum)
line.should == 15
end
it "works even if the proc was created on the same line" do
proc { true }.source_location.should == [__FILE__, __LINE__]
Proc.new { true }.source_location.should == [__FILE__, __LINE__]
lambda { true }.source_location.should == [__FILE__, __LINE__]
end
it "returns the first line of a multi-line proc (i.e. the line containing 'proc do')" do
ProcSpecs::SourceLocation.my_multiline_proc.source_location.last.should == 20
ProcSpecs::SourceLocation.my_multiline_proc_new.source_location.last.should == 34
ProcSpecs::SourceLocation.my_multiline_lambda.source_location.last.should == 27
end
it "returns the location of the proc's body; not necessarily the proc itself" do
ProcSpecs::SourceLocation.my_detached_proc.source_location.last.should == 41
ProcSpecs::SourceLocation.my_detached_proc_new.source_location.last.should == 51
ProcSpecs::SourceLocation.my_detached_lambda.source_location.last.should == 46
end
end
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