1 files changed, 50 insertions, 0 deletions
diff --git a/spec/ruby/core/io/sysopen_spec.rb b/spec/ruby/core/io/sysopen_spec.rb
new file mode 100644
index 0000000000..f6d37de364
--- /dev/null
+++ b/spec/ruby/core/io/sysopen_spec.rb
@@ -0,0 +1,50 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "IO.sysopen" do
+  before :each do
+    @filename = tmp("rubinius-spec-io-sysopen-#{$$}.txt")
+    @fd = nil
+  end
+
+  after :each do
+    IO.for_fd(@fd).close if @fd
+    rm_r @filename
+  end
+
+  it "returns the file descriptor for a given path" do
+    @fd = IO.sysopen(@filename, "w")
+    @fd.should be_kind_of(Fixnum)
+    @fd.should_not equal(0)
+  end
+
+  # opening a directory is not supported on Windows
+  platform_is_not :windows do
+    it "works on directories" do
+      @fd = IO.sysopen(tmp(""))    # /tmp
+      @fd.should be_kind_of(Fixnum)
+      @fd.should_not equal(0)
+    end
+  end
+
+  it "calls #to_path to convert an object to a path" do
+    path = mock('sysopen to_path')
+    path.should_receive(:to_path).and_return(@filename)
+    @fd = IO.sysopen(path, 'w')
+  end
+
+  it "accepts a mode as second argument" do
+    lambda { @fd = IO.sysopen(@filename, "w") }.should_not raise_error
+    @fd.should_not equal(0)
+  end
+
+  it "accepts permissions as third argument" do
+    @fd = IO.sysopen(@filename, "w", 777)
+    @fd.should_not equal(0)
+  end
+
+  it "accepts mode & permission that are nil" do
+    touch @filename # create the file
+    @fd = IO.sysopen(@filename, nil, nil)
+    @fd.should_not equal(0)
+  end
+end