1 files changed, 38 insertions, 0 deletions
diff --git a/spec/ruby/core/thread/backtrace/location/absolute_path_spec.rb b/spec/ruby/core/thread/backtrace/location/absolute_path_spec.rb
index aeae6b77c6..5bd97442d9 100644
--- a/spec/ruby/core/thread/backtrace/location/absolute_path_spec.rb
+++ b/spec/ruby/core/thread/backtrace/location/absolute_path_spec.rb
@@ -9,4 +9,42 @@ describe 'Thread::Backtrace::Location#absolute_path' do
   it 'returns the absolute path of the call frame' do
     @frame.absolute_path.should == File.realpath(__FILE__)
   end
+
+  context "when used in eval with a given filename" do
+    it "returns filename" do
+      code = "caller_locations(0)[0].absolute_path"
+      eval(code, nil, "foo.rb").should == "foo.rb"
+      eval(code, nil, "foo/bar.rb").should == "foo/bar.rb"
+    end
+  end
+
+  platform_is_not :windows do
+    before :each do
+      @file = fixture(__FILE__, "absolute_path.rb")
+      @symlink = tmp("symlink.rb")
+      File.symlink(@file, @symlink)
+      ScratchPad.record []
+    end
+
+    after :each do
+      rm_r @symlink
+    end
+
+    it "returns a canonical path without symlinks, even when __FILE__ does not" do
+      realpath = File.realpath(@symlink)
+      realpath.should_not == @symlink
+
+      load @symlink
+      ScratchPad.recorded.should == [@symlink, realpath]
+    end
+
+    it "returns a canonical path without symlinks, even when __FILE__ is removed" do
+      realpath = File.realpath(@symlink)
+      realpath.should_not == @symlink
+
+      ScratchPad << -> { rm_r(@symlink) }
+      load @symlink
+      ScratchPad.recorded.should == [@symlink, realpath]
+    end
+  end
 end