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Diffstat (limited to 'spec/ruby/core/string/strip_spec.rb')
-rw-r--r-- | spec/ruby/core/string/strip_spec.rb | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/spec/ruby/core/string/strip_spec.rb b/spec/ruby/core/string/strip_spec.rb new file mode 100644 index 0000000000..747fd8cdf2 --- /dev/null +++ b/spec/ruby/core/string/strip_spec.rb @@ -0,0 +1,60 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes.rb', __FILE__) + +describe "String#strip" do + it "returns a new string with leading and trailing whitespace removed" do + " hello ".strip.should == "hello" + " hello world ".strip.should == "hello world" + "\tgoodbye\r\v\n".strip.should == "goodbye" + "\x00 goodbye \x00".strip.should == "\x00 goodbye" + end + + it "returns a copy of self with trailing NULL bytes and whitespace" do + " \x00 goodbye \x00 ".strip.should == "\x00 goodbye" + end + + it "taints the result when self is tainted" do + "".taint.strip.tainted?.should == true + "ok".taint.strip.tainted?.should == true + " ok ".taint.strip.tainted?.should == true + end +end + +describe "String#strip!" do + it "modifies self in place and returns self" do + a = " hello " + a.strip!.should equal(a) + a.should == "hello" + + a = "\tgoodbye\r\v\n" + a.strip! + a.should == "goodbye" + + a = "\000 goodbye \000" + a.strip! + a.should == "\000 goodbye" + + end + + it "returns nil if no modifications where made" do + a = "hello" + a.strip!.should == nil + a.should == "hello" + end + + it "modifies self removing trailing NULL bytes and whitespace" do + a = " \x00 goodbye \x00 " + a.strip! + a.should == "\x00 goodbye" + end + + it "raises a RuntimeError on a frozen instance that is modified" do + lambda { " hello ".freeze.strip! }.should raise_error(RuntimeError) + end + + # see #1552 + it "raises a RuntimeError on a frozen instance that would not be modified" do + lambda {"hello".freeze.strip! }.should raise_error(RuntimeError) + lambda {"".freeze.strip! }.should raise_error(RuntimeError) + end +end |