1 files changed, 60 insertions, 0 deletions
diff --git a/spec/rubyspec/core/string/strip_spec.rb b/spec/rubyspec/core/string/strip_spec.rb
new file mode 100644
index 0000000000..747fd8cdf2
--- /dev/null
+++ b/spec/rubyspec/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