1 files changed, 59 insertions, 0 deletions
diff --git a/spec/ruby/core/unboundmethod/source_location_spec.rb b/spec/ruby/core/unboundmethod/source_location_spec.rb
new file mode 100644
index 0000000000..927600bfcb
--- /dev/null
+++ b/spec/ruby/core/unboundmethod/source_location_spec.rb
@@ -0,0 +1,59 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+
+describe "UnboundMethod#source_location" do
+  before :each do
+    @method = UnboundMethodSpecs::SourceLocation.method(:location).unbind
+  end
+
+  it "sets the first value to the path of the file in which the method was defined" do
+    file = @method.source_location.first
+    file.should.instance_of?(String)
+    file.should == File.realpath('fixtures/classes.rb', __dir__)
+  end
+
+  it "sets the last value to an Integer representing the line on which the method was defined" do
+    line = @method.source_location.last
+    line.should.instance_of?(Integer)
+    line.should == 5
+  end
+
+  it "returns the last place the method was defined" do
+    UnboundMethodSpecs::SourceLocation.method(:redefined).unbind.source_location.last.should == 13
+  end
+
+  it "returns the location of the original method even if it was aliased" do
+    UnboundMethodSpecs::SourceLocation.instance_method(:aka).source_location.last.should == 17
+  end
+
+  it "works for define_method methods" do
+    line = nil
+    cls = Class.new do
+      line = __LINE__ + 1
+      define_method(:foo) { }
+    end
+
+    method = cls.instance_method(:foo)
+    method.source_location[0].should =~ /#{__FILE__}/
+    method.source_location[1].should == line
+  end
+
+  it "works for define_singleton_method methods" do
+    line = nil
+    cls = Class.new do
+      line = __LINE__ + 1
+      define_singleton_method(:foo) { }
+    end
+
+    method = cls.method(:foo)
+    method.source_location[0].should =~ /#{__FILE__}/
+    method.source_location[1].should == line
+  end
+
+  it "works for eval with a given line" do
+    c = Class.new do
+      eval('def m; end', nil, "foo", 100)
+    end
+    c.instance_method(:m).source_location.should == ["foo", 100]
+  end
+end