Function generateHash

tests/qunit-2.9.2.js:279–296

(module, testName)

  // Based on Java's String.hashCode, a simple but not
  // rigorously collision resistant hashing function
  function generateHash(module, testName) {
  	var str = module + "\x1C" + testName;
  	var hash = 0;

  	for (var i = 0; i < str.length; i++) {
  		hash = (hash << 5) - hash + str.charCodeAt(i);
  		hash |= 0;
  	}

  	// Convert the possibly negative integer hash code into an 8 character hex string, which isn't
  	// strictly necessary but increases user understanding that the id is a SHA-like hash
  	var hex = (0x100000000 + hash).toString(16);
  	if (hex.length < 8) {
  		hex = "0000000" + hex;
  	}

  	return hex.slice(-8);
  }

  // Test for equality any JavaScript type.
  // Authors: Philippe Rathé <prathe@gmail.com>, David Chan <david@troi.org>