1 files changed, 100 insertions, 0 deletions
diff --git a/spec/ruby/core/io/close_on_exec_spec.rb b/spec/ruby/core/io/close_on_exec_spec.rb
new file mode 100644
index 0000000000..057a9a1c20
--- /dev/null
+++ b/spec/ruby/core/io/close_on_exec_spec.rb
@@ -0,0 +1,100 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "IO#close_on_exec=" do
+  before :each do
+    @name = tmp('io_close_on_exec.txt')
+    @io = new_io @name
+  end
+
+  after :each do
+    @io.close unless @io.closed?
+    rm_r @name
+  end
+
+  guard -> { platform_is :windows and ruby_version_is ""..."2.3" } do
+    it "returns false from #respond_to?" do
+      @io.respond_to?(:close_on_exec=).should be_false
+    end
+
+    it "raises a NotImplementedError when called" do
+      lambda { @io.close_on_exec = true }.should raise_error(NotImplementedError)
+    end
+  end
+
+  guard -> { platform_is_not :windows or ruby_version_is "2.3" } do
+    it "sets the close-on-exec flag if true" do
+      @io.close_on_exec = true
+      @io.close_on_exec?.should == true
+    end
+
+    it "sets the close-on-exec flag if non-false" do
+      @io.close_on_exec = :true
+      @io.close_on_exec?.should == true
+    end
+
+    it "unsets the close-on-exec flag if false" do
+      @io.close_on_exec = true
+      @io.close_on_exec = false
+      @io.close_on_exec?.should == false
+    end
+
+    it "unsets the close-on-exec flag if nil" do
+      @io.close_on_exec = true
+      @io.close_on_exec = nil
+      @io.close_on_exec?.should == false
+    end
+
+    it "ensures the IO's file descriptor is closed in exec'ed processes" do
+      require 'fcntl'
+      @io.close_on_exec = true
+      (@io.fcntl(Fcntl::F_GETFD) & Fcntl::FD_CLOEXEC).should == Fcntl::FD_CLOEXEC
+    end
+
+    it "raises IOError if called on a closed IO" do
+      @io.close
+      lambda { @io.close_on_exec = true }.should raise_error(IOError)
+    end
+
+    it "returns nil" do
+      @io.send(:close_on_exec=, true).should be_nil
+    end
+  end
+end
+
+describe "IO#close_on_exec?" do
+  before :each do
+    @name = tmp('io_is_close_on_exec.txt')
+    @io = new_io @name
+  end
+
+  after :each do
+    @io.close unless @io.closed?
+    rm_r @name
+  end
+
+  guard -> { platform_is :windows and ruby_version_is ""..."2.3" } do
+    it "returns false from #respond_to?" do
+      @io.respond_to?(:close_on_exec?).should be_false
+    end
+
+    it "raises a NotImplementedError when called" do
+      lambda { @io.close_on_exec? }.should raise_error(NotImplementedError)
+    end
+  end
+
+  guard -> { platform_is_not :windows or ruby_version_is "2.3" } do
+    it "returns true by default" do
+      @io.close_on_exec?.should == true
+    end
+
+    it "returns true if set" do
+      @io.close_on_exec = true
+      @io.close_on_exec?.should == true
+    end
+
+    it "raises IOError if called on a closed IO" do
+      @io.close
+      lambda { @io.close_on_exec? }.should raise_error(IOError)
+    end
+  end
+end