1 files changed, 15 insertions, 0 deletions
diff --git a/Library/Homebrew/test/test_build_options.rb b/Library/Homebrew/test/test_build_options.rb
index dab418792..02f4be0fa 100644
--- a/Library/Homebrew/test/test_build_options.rb
+++ b/Library/Homebrew/test/test_build_options.rb
@@ -7,6 +7,8 @@ class BuildOptionsTests < Homebrew::TestCase
     args = Options.create(%w[--with-foo --with-bar --without-qux])
     opts = Options.create(%w[--with-foo --with-bar --without-baz --without-qux])
     @build = BuildOptions.new(args, opts)
+    bad_args = Options.create(%w[--with-foo --with-bar --without-bas --without-qux --without-abc])
+    @bad_build = BuildOptions.new(bad_args, opts)
   end
 
   def test_include
@@ -31,4 +33,17 @@ class BuildOptionsTests < Homebrew::TestCase
   def test_unused_options
     assert_includes @build.unused_options, "--without-baz"
   end
+
+  def test_invalid_options
+    assert_empty @build.invalid_options
+    assert_includes @bad_build.invalid_options, "--without-bas"
+    assert_includes @bad_build.invalid_options, "--without-abc"
+    refute_includes @bad_build.invalid_options, "--with-foo"
+    refute_includes @bad_build.invalid_options, "--with-baz"
+  end
+
+  def test_invalid_opt_names
+    assert_empty @build.invalid_opt_names
+    assert_equal @bad_build.invalid_opt_names, %w[--without-abc --without-bas]
+  end
 end