1 files changed, 58 insertions, 0 deletions
diff --git a/spec/ruby/optional/capi/exception_spec.rb b/spec/ruby/optional/capi/exception_spec.rb
new file mode 100644
index 0000000000..4800e6ffc0
--- /dev/null
+++ b/spec/ruby/optional/capi/exception_spec.rb
@@ -0,0 +1,58 @@
+require File.expand_path('../spec_helper', __FILE__)
+
+load_extension("exception")
+
+describe "C-API Exception function" do
+  before :each do
+    @s = CApiExceptionSpecs.new
+  end
+
+  describe "rb_exc_new" do
+    it "creates an exception from a C string and length" do
+      @s.rb_exc_new('foo').to_s.should == 'foo'
+    end
+  end
+
+  describe "rb_exc_new2" do
+    it "creates an exception from a C string" do
+      @s.rb_exc_new2('foo').to_s.should == 'foo'
+    end
+  end
+
+  describe "rb_exc_new3" do
+    it "creates an exception from a Ruby string" do
+      @s.rb_exc_new3('foo').to_s.should == 'foo'
+    end
+  end
+
+  describe "rb_exc_raise" do
+    it "raises passed exception" do
+      runtime_error = RuntimeError.new '42'
+      lambda { @s.rb_exc_raise(runtime_error) }.should raise_error(RuntimeError, '42')
+    end
+
+    it "raises an exception with an empty backtrace" do
+      runtime_error = RuntimeError.new '42'
+      runtime_error.set_backtrace []
+      lambda { @s.rb_exc_raise(runtime_error) }.should raise_error(RuntimeError, '42')
+    end
+  end
+
+  describe "rb_set_errinfo" do
+    after :each do
+      @s.rb_set_errinfo(nil)
+    end
+
+    it "accepts nil" do
+      @s.rb_set_errinfo(nil).should be_nil
+    end
+
+    it "accepts an Exception instance" do
+      @s.rb_set_errinfo(Exception.new).should be_nil
+    end
+
+    it "raises a TypeError if the object is not nil or an Exception instance" do
+      lambda { @s.rb_set_errinfo("error") }.should raise_error(TypeError)
+    end
+  end
+end