Squashed matchers refactor - matchers now unit-testable apart from Expectation and Spec.

src/core/Expectation.js

@@ -0,0 +1,94 @@
+getJasmineRequireObj().Expectation = function() {
+
+  var matchers = {};
+
+  function Expectation(options) {
+    this.util = options.util || { buildFailureMessage: function() {} };
+    this.customEqualityTesters = options.customEqualityTesters || [];
+    this.actual = options.actual;
+    this.addExpectationResult = options.addExpectationResult || function(){};
+    this.isNot = options.isNot;
+
+    for (var matcherName in matchers) {
+      this[matcherName] = matchers[matcherName];
+    }
+  }
+
+  Expectation.prototype.wrapCompare = function(name, matcherFactory) {
+    return function() {
+      var args = Array.prototype.slice.call(arguments, 0),
+        expected = args.slice(0),
+        message = "";
+
+      args.unshift(this.actual);
+
+      var result = matcherFactory(this.util, this.customEqualityTesters).compare.apply(null, args);
+
+      if (this.isNot) {
+        result.pass = !result.pass;
+      }
+
+      if (!result.pass) {
+        if (!result.message) {
+          args.unshift(this.isNot);
+          args.unshift(name);
+          message = this.util.buildFailureMessage.apply(null, args);
+        } else {
+          message = result.message;
+        }
+      }
+
+      if (expected.length == 1) {
+        expected = expected[0];
+      }
+
+      // TODO: how many of these params are needed?
+      this.addExpectationResult(
+        result.pass,
+        {
+          matcherName: name,
+          passed: result.pass,
+          message: message,
+          actual: this.actual,
+          expected: expected // TODO: this may need to be arrayified/sliced
+        }
+      );
+    };
+  };
+
+  Expectation.addCoreMatchers = function(matchers) {
+    var prototype = Expectation.prototype;
+    for (var matcherName in matchers) {
+      var matcher = matchers[matcherName];
+      prototype[matcherName] = prototype.wrapCompare(matcherName, matcher);
+    }
+  };
+
+  Expectation.addMatchers = function(matchersToAdd) {
+    for (var name in matchersToAdd) {
+      var matcher = matchersToAdd[name];
+      matchers[name] = Expectation.prototype.wrapCompare(name, matcher);
+    }
+  };
+
+  Expectation.resetMatchers = function() {
+    for (var name in matchers) {
+      delete matchers[name];
+    }
+  };
+
+  Expectation.Factory = function(options) {
+    options = options || {};
+
+    var expect = new Expectation(options);
+
+    // TODO: this would be nice as its own Object - NegativeExpectation
+    // TODO: copy instead of mutate options
+    options.isNot = true;
+    expect.not = new Expectation(options);
+
+    return expect;
+  };
+
+  return Expectation;
+};