1 files changed, 42 insertions, 0 deletions
diff --git a/spec/ruby/core/kernel/fail_spec.rb b/spec/ruby/core/kernel/fail_spec.rb
new file mode 100644
index 0000000000..fab622037e
--- /dev/null
+++ b/spec/ruby/core/kernel/fail_spec.rb
@@ -0,0 +1,42 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+
+describe "Kernel#fail" do
+  it "is a private method" do
+    Kernel.should have_private_instance_method(:fail)
+  end
+
+  it "raises a RuntimeError" do
+    -> { fail }.should raise_error(RuntimeError)
+  end
+
+  it "accepts an Object with an exception method returning an Exception" do
+    obj = Object.new
+    def obj.exception(msg)
+      StandardError.new msg
+    end
+    -> { fail obj, "..." }.should raise_error(StandardError, "...")
+  end
+
+  it "instantiates the specified exception class" do
+    error_class = Class.new(RuntimeError)
+    -> { fail error_class }.should raise_error(error_class)
+  end
+
+  it "uses the specified message" do
+    -> {
+      begin
+        fail "the duck is not irish."
+      rescue => e
+        e.message.should == "the duck is not irish."
+        raise
+      else
+        raise Exception
+      end
+    }.should raise_error(RuntimeError)
+  end
+end
+
+describe "Kernel.fail" do
+  it "needs to be reviewed for spec completeness"
+end