1 files changed, 57 insertions, 0 deletions
diff --git a/spec/ruby/core/file/umask_spec.rb b/spec/ruby/core/file/umask_spec.rb
new file mode 100644
index 0000000000..fea8cf7633
--- /dev/null
+++ b/spec/ruby/core/file/umask_spec.rb
@@ -0,0 +1,57 @@
+require_relative '../../spec_helper'
+
+describe "File.umask" do
+  before :each do
+    @orig_umask = File.umask
+    @file = tmp('test.txt')
+    touch @file
+  end
+
+  after :each do
+    rm_r @file
+    File.umask(@orig_umask)
+  end
+
+  it "returns an Integer" do
+    File.umask.should.is_a?(Integer)
+  end
+
+  platform_is_not :windows do
+    it "returns the current umask value for the process" do
+      File.umask(022)
+      File.umask(006).should == 022
+      File.umask.should == 006
+    end
+
+    it "invokes to_int on non-integer argument" do
+      (obj = mock(022)).should_receive(:to_int).any_number_of_times.and_return(022)
+      File.umask(obj)
+      File.umask(obj).should == 022
+    end
+  end
+
+  platform_is :windows do
+    it "returns the current umask value for this process (basic)" do
+      File.umask.should == 0
+      File.umask(022).should == 0
+      File.umask(044).should == 0
+    end
+
+    # The value used here is the value of _S_IWRITE.
+    it "returns the current umask value for this process" do
+      File.umask(0000200)
+      File.umask.should == 0000200
+      File.umask(0006)
+      File.umask.should == 0
+    end
+  end
+
+  it "raises RangeError with too large values" do
+    -> { File.umask(2**64) }.should.raise(RangeError)
+    -> { File.umask(-2**63 - 1) }.should.raise(RangeError)
+  end
+
+  it "raises ArgumentError when more than one argument is provided" do
+    -> { File.umask(022, 022) }.should.raise(ArgumentError)
+  end
+end