diff options
Diffstat (limited to 'spec/rubyspec/language/unless_spec.rb')
-rw-r--r-- | spec/rubyspec/language/unless_spec.rb | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/spec/rubyspec/language/unless_spec.rb b/spec/rubyspec/language/unless_spec.rb new file mode 100644 index 0000000000..681f0adfdd --- /dev/null +++ b/spec/rubyspec/language/unless_spec.rb @@ -0,0 +1,43 @@ +require File.expand_path('../../spec_helper', __FILE__) + +describe "The unless expression" do + it "evaluates the unless body when the expression is false" do + unless false + a = true + else + a = false + end + + a.should == true + end + + it "returns the last statement in the body" do + unless false + 'foo' + 'bar' + 'baz' + end.should == 'baz' + end + + it "evaluates the else body when the expression is true" do + unless true + 'foo' + else + 'bar' + end.should == 'bar' + end + + it "takes an optional then after the expression" do + unless false then + 'baz' + end.should == 'baz' + end + + it "does not return a value when the expression is true" do + unless true; end.should == nil + end + + it "allows expression and body to be on one line (using 'then')" do + unless false then 'foo'; else 'bar'; end.should == 'foo' + end +end |