Add in-tree mspec and ruby/spec

* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 68 insertions, 0 deletions

diff --git a/spec/rubyspec/shared/kernel/raise.rb b/spec/rubyspec/shared/kernel/raise.rb
new file mode 100644
index 0000000000..70d638fff9
--- /dev/null
+++ b/spec/rubyspec/shared/kernel/raise.rb
@@ -0,0 +1,68 @@
+describe :kernel_raise, shared: true do
+  before :each do
+    ScratchPad.clear
+  end
+
+  it "aborts execution" do
+    lambda do
+      @object.raise Exception, "abort"
+      ScratchPad.record :no_abort
+    end.should raise_error(Exception, "abort")
+
+    ScratchPad.recorded.should be_nil
+  end
+
+  it "raises RuntimeError if no exception class is given" do
+    lambda { @object.raise }.should raise_error(RuntimeError)
+  end
+
+  it "raises a given Exception instance" do
+    error = RuntimeError.new
+    lambda { @object.raise(error) }.should raise_error(error)
+  end
+
+  it "raises a RuntimeError if string given" do
+    lambda { @object.raise("a bad thing") }.should raise_error(RuntimeError)
+  end
+
+  it "raises a TypeError when passed a non-Exception object" do
+    lambda { @object.raise(Object.new) }.should raise_error(TypeError)
+  end
+
+  it "raises a TypeError when passed true" do
+    lambda { @object.raise(true) }.should raise_error(TypeError)
+  end
+
+  it "raises a TypeError when passed false" do
+    lambda { @object.raise(false) }.should raise_error(TypeError)
+  end
+
+  it "raises a TypeError when passed nil" do
+    lambda { @object.raise(nil) }.should raise_error(TypeError)
+  end
+
+  it "re-raises the rescued exception" do
+    lambda do
+      begin
+        raise Exception, "outer"
+        ScratchPad.record :no_abort
+      rescue
+        begin
+          raise StandardError, "inner"
+        rescue
+        end
+
+        @object.raise
+        ScratchPad.record :no_reraise
+      end
+    end.should raise_error(Exception, "outer")
+
+    ScratchPad.recorded.should be_nil
+  end
+
+  it "allows Exception, message, and backtrace parameters" do
+    lambda do
+      @object.raise(ArgumentError, "message", caller)
+    end.should raise_error(ArgumentError, "message")
+  end
+end