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, 47 insertions, 0 deletions

diff --git a/spec/rubyspec/core/comparable/gte_spec.rb b/spec/rubyspec/core/comparable/gte_spec.rb
new file mode 100644
index 0000000000..c9d8264ee6
--- /dev/null
+++ b/spec/rubyspec/core/comparable/gte_spec.rb
@@ -0,0 +1,47 @@
+require File.expand_path('../fixtures/classes', __FILE__)
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Comparable#>=" do
+  it "calls #<=> on self with other and returns true if #<=> returns 0 or any Integer greater than 0" do
+    a = ComparableSpecs::Weird.new(0)
+    b = ComparableSpecs::Weird.new(20)
+
+    a.should_receive(:<=>).any_number_of_times.and_return(0)
+    (a >= b).should == true
+
+    a.should_receive(:<=>).any_number_of_times.and_return(0.0)
+    (a >= b).should == true
+
+    a.should_receive(:<=>).any_number_of_times.and_return(1)
+    (a >= b).should == true
+
+    a.should_receive(:<=>).any_number_of_times.and_return(0.1)
+    (a >= b).should == true
+
+    a.should_receive(:<=>).any_number_of_times.and_return(10000000)
+    (a >= b).should == true
+  end
+
+  it "returns false if calling #<=> on self returns any Integer less than 0" do
+    a = ComparableSpecs::Weird.new(0)
+    b = ComparableSpecs::Weird.new(10)
+
+
+    a.should_receive(:<=>).any_number_of_times.and_return(-0.1)
+    (a >= b).should == false
+
+    a.should_receive(:<=>).any_number_of_times.and_return(-1.0)
+    (a >= b).should == false
+
+    a.should_receive(:<=>).any_number_of_times.and_return(-10000000)
+    (a >= b).should == false
+  end
+
+  it "raises an ArgumentError if calling #<=> on self returns nil" do
+    a = ComparableSpecs::Weird.new(0)
+    b = ComparableSpecs::Weird.new(20)
+
+    a.should_receive(:<=>).any_number_of_times.and_return(nil)
+    lambda { (a >= b) }.should raise_error(ArgumentError)
+  end
+end