1 files changed, 31 insertions, 0 deletions
diff --git a/spec/ruby/core/file/constants/constants_spec.rb b/spec/ruby/core/file/constants/constants_spec.rb
new file mode 100644
index 0000000000..9d9c1c3b25
--- /dev/null
+++ b/spec/ruby/core/file/constants/constants_spec.rb
@@ -0,0 +1,31 @@
+require_relative '../../../spec_helper'
+
+["APPEND", "CREAT", "EXCL", "FNM_CASEFOLD",
+  "FNM_DOTMATCH", "FNM_EXTGLOB", "FNM_NOESCAPE", "FNM_PATHNAME",
+  "FNM_SYSCASE", "LOCK_EX", "LOCK_NB", "LOCK_SH",
+  "LOCK_UN", "NONBLOCK", "RDONLY",
+  "RDWR", "TRUNC", "WRONLY", "SHARE_DELETE"].each do |const|
+  describe "File::Constants::#{const}" do
+    it "is defined" do
+      File::Constants.const_defined?(const).should == true
+    end
+  end
+end
+
+platform_is :windows do
+  describe "File::Constants::BINARY" do
+    it "is defined" do
+      File::Constants.const_defined?(:BINARY).should == true
+    end
+  end
+end
+
+platform_is_not :windows do
+  ["NOCTTY", "SYNC"].each do |const|
+    describe "File::Constants::#{const}" do
+      it "is defined" do
+        File::Constants.const_defined?(const).should == true
+      end
+    end
+  end
+end