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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
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