Add more test cases for fallback of Psych.load_file

Add test cases for the fallback keyword argument of Psych.load_file
to make sure that the fallback is not used for valid YAML that
represents nil or false.

1 files changed, 18 insertions, 0 deletions

diff --git a/test/psych/test_psych.rb b/test/psych/test_psych.rb
index 2d4a7cc..bce6bf8 100644
--- a/test/psych/test_psych.rb
+++ b/test/psych/test_psych.rb
@@ -162,6 +162,24 @@ class TestPsych < Psych::TestCase
     }
   end
 
+  def test_load_file_with_fallback_for_nil
+    Tempfile.create(['nil', 'yml']) {|t|
+      t.binmode
+      t.write('--- null')
+      t.close
+      assert_nil Psych.load_file(t.path, fallback: 42)
+    }
+  end
+
+  def test_load_file_with_fallback_for_false
+    Tempfile.create(['false', 'yml']) {|t|
+      t.binmode
+      t.write('--- false')
+      t.close
+      assert_equal false, Psych.load_file(t.path, fallback: 42)
+    }
+  end
+
   def test_parse_file
     Tempfile.create(['yikes', 'yml']) {|t|
       t.binmode