1 files changed, 38 insertions, 7 deletions
diff --git a/spec/ruby/core/method/source_location_spec.rb b/spec/ruby/core/method/source_location_spec.rb
index dd81b02c77..87413a2ab6 100644
--- a/spec/ruby/core/method/source_location_spec.rb
+++ b/spec/ruby/core/method/source_location_spec.rb
@@ -11,23 +11,23 @@ describe "Method#source_location" do
   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 = @method.source_location[0]
     file.should be_an_instance_of(String)
-    file.should == File.realpath('../fixtures/classes.rb', __FILE__)
+    file.should == File.realpath('fixtures/classes.rb', __dir__)
   end
 
-  it "sets the last value to a Fixnum representing the line on which the method was defined" do
-    line = @method.source_location.last
-    line.should be_an_instance_of(Fixnum)
+  it "sets the last value to an Integer representing the line on which the method was defined" do
+    line = @method.source_location[1]
+    line.should be_an_instance_of(Integer)
     line.should == 5
   end
 
   it "returns the last place the method was defined" do
-    MethodSpecs::SourceLocation.method(:redefined).source_location.last.should == 13
+    MethodSpecs::SourceLocation.method(:redefined).source_location[1].should == 13
   end
 
   it "returns the location of the original method even if it was aliased" do
-    MethodSpecs::SourceLocation.new.method(:aka).source_location.last.should == 17
+    MethodSpecs::SourceLocation.new.method(:aka).source_location[1].should == 17
   end
 
   it "works for methods defined with a block" do
@@ -86,6 +86,37 @@ describe "Method#source_location" do
     method.source_location[1].should == line
   end
 
+  it "works for core methods where it returns nil or <internal:" do
+    loc = method(:__id__).source_location
+    if loc == nil
+      loc.should == nil
+    else
+      loc[0].should.start_with?('<internal:')
+      loc[1].should be_kind_of(Integer)
+    end
+
+    loc = method(:tap).source_location
+    if loc == nil
+      loc.should == nil
+    else
+      loc[0].should.start_with?('<internal:')
+      loc[1].should be_kind_of(Integer)
+    end
+  end
+
+  it "works for eval with a given line" do
+    c = Class.new do
+      eval('def self.m; end', nil, "foo", 100)
+    end
+    location = c.method(:m).source_location
+    ruby_version_is(""..."4.1") do
+      location.should == ["foo", 100]
+    end
+    ruby_version_is("4.1") do
+      location.should == ["foo", 100, 0, 100, 15]
+    end
+  end
+
   describe "for a Method generated by respond_to_missing?" do
     it "returns nil" do
       m = MethodSpecs::Methods.new