diff options
Diffstat (limited to 'spec/ruby/core/string/rstrip_spec.rb')
-rw-r--r-- | spec/ruby/core/string/rstrip_spec.rb | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/spec/ruby/core/string/rstrip_spec.rb b/spec/ruby/core/string/rstrip_spec.rb new file mode 100644 index 0000000000..9dd686ce55 --- /dev/null +++ b/spec/ruby/core/string/rstrip_spec.rb @@ -0,0 +1,52 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes.rb', __FILE__) + +describe "String#rstrip" do + it "returns a copy of self with trailing whitespace removed" do + " hello ".rstrip.should == " hello" + " hello world ".rstrip.should == " hello world" + " hello world \n\r\t\n\v\r".rstrip.should == " hello world" + "hello".rstrip.should == "hello" + "hello\x00".rstrip.should == "hello" + end + + it "returns a copy of self with all trailing whitespace and NULL bytes removed" do + "\x00 \x00hello\x00 \x00".rstrip.should == "\x00 \x00hello" + end + + it "taints the result when self is tainted" do + "".taint.rstrip.tainted?.should == true + "ok".taint.rstrip.tainted?.should == true + "ok ".taint.rstrip.tainted?.should == true + end +end + +describe "String#rstrip!" do + it "modifies self in place and returns self" do + a = " hello " + a.rstrip!.should equal(a) + a.should == " hello" + end + + it "modifies self removing trailing NULL bytes and whitespace" do + a = "\x00 \x00hello\x00 \x00" + a.rstrip! + a.should == "\x00 \x00hello" + end + + it "returns nil if no modifications were made" do + a = "hello" + a.rstrip!.should == nil + a.should == "hello" + end + + it "raises a RuntimeError on a frozen instance that is modified" do + lambda { " hello ".freeze.rstrip! }.should raise_error(RuntimeError) + end + + # see [ruby-core:23666] + it "raises a RuntimeError on a frozen instance that would not be modified" do + lambda { "hello".freeze.rstrip! }.should raise_error(RuntimeError) + lambda { "".freeze.rstrip! }.should raise_error(RuntimeError) + end +end |