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Diffstat (limited to 'spec/ruby/core/string/crypt_spec.rb')
-rw-r--r-- | spec/ruby/core/string/crypt_spec.rb | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/spec/ruby/core/string/crypt_spec.rb b/spec/ruby/core/string/crypt_spec.rb new file mode 100644 index 0000000000..d3bf5ec732 --- /dev/null +++ b/spec/ruby/core/string/crypt_spec.rb @@ -0,0 +1,75 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes.rb', __FILE__) + +describe "String#crypt" do + # Note: MRI's documentation just says that the C stdlib function crypt() is + # called. + # + # I'm not sure if crypt() is guaranteed to produce the same result across + # different platforms. It seems that there is one standard UNIX implementation + # of crypt(), but that alternative implementations are possible. See + # http://www.unix.org.ua/orelly/networking/puis/ch08_06.htm + it "returns a cryptographic hash of self by applying the UNIX crypt algorithm with the specified salt" do + "".crypt("aa").should == "aaQSqAReePlq6" + "nutmeg".crypt("Mi").should == "MiqkFWCm1fNJI" + "ellen1".crypt("ri").should == "ri79kNd7V6.Sk" + "Sharon".crypt("./").should == "./UY9Q7TvYJDg" + "norahs".crypt("am").should == "amfIADT2iqjA." + "norahs".crypt("7a").should == "7azfT5tIdyh0I" + + # Only uses first 8 chars of string + "01234567".crypt("aa").should == "aa4c4gpuvCkSE" + "012345678".crypt("aa").should == "aa4c4gpuvCkSE" + "0123456789".crypt("aa").should == "aa4c4gpuvCkSE" + + # Only uses first 2 chars of salt + "hello world".crypt("aa").should == "aayPz4hyPS1wI" + "hello world".crypt("aab").should == "aayPz4hyPS1wI" + "hello world".crypt("aabc").should == "aayPz4hyPS1wI" + end + + it "raises an ArgumentError when the salt is shorter than two characters" do + lambda { "hello".crypt("") }.should raise_error(ArgumentError) + lambda { "hello".crypt("f") }.should raise_error(ArgumentError) + lambda { "hello".crypt("\x00\x00") }.should raise_error(ArgumentError) + lambda { "hello".crypt("\x00a") }.should raise_error(ArgumentError) + lambda { "hello".crypt("a\x00") }.should raise_error(ArgumentError) + end + + ruby_version_is "2.3" do + it "raises an ArgumentError when the string contains NUL character" do + lambda { "poison\0null".crypt("aa") }.should raise_error(ArgumentError) + end + end + + it "calls #to_str to converts the salt arg to a String" do + obj = mock('aa') + obj.should_receive(:to_str).and_return("aa") + + "".crypt(obj).should == "aaQSqAReePlq6" + end + + it "raises a type error when the salt arg can't be converted to a string" do + lambda { "".crypt(5) }.should raise_error(TypeError) + lambda { "".crypt(mock('x')) }.should raise_error(TypeError) + end + + it "taints the result if either salt or self is tainted" do + tainted_salt = "aa" + tainted_str = "hello" + + tainted_salt.taint + tainted_str.taint + + "hello".crypt("aa").tainted?.should == false + tainted_str.crypt("aa").tainted?.should == true + "hello".crypt(tainted_salt).tainted?.should == true + tainted_str.crypt(tainted_salt).tainted?.should == true + end + + it "doesn't return subclass instances" do + StringSpecs::MyString.new("hello").crypt("aa").should be_an_instance_of(String) + "hello".crypt(StringSpecs::MyString.new("aa")).should be_an_instance_of(String) + StringSpecs::MyString.new("hello").crypt(StringSpecs::MyString.new("aa")).should be_an_instance_of(String) + end +end |