chai-changes - npm Package Compare versions

Comparing version 1.2.1 to 1.3.0

chai-changes.js

@@ -1,2 +0,2 @@
-// Generated by CoffeeScript 1.3.3
+// Generated by CoffeeScript 1.4.0
 (function() {
@@ -15,11 +15,5 @@
   })(function(chai, utils) {
-    var changeBy, changeByAssert, changeFrom, changeFromAssert, changeFromBeginAssert, changeTo, changeToAssert, changeToBeginAssert, flag, formatFunction, inspect, noChangeAssert;
+    var byAtLeast, byAtMost, changeBy, changeByAssert, changeFrom, changeFromAssert, changeFromBeginAssert, changeTo, changeToAssert, changeToBeginAssert, flag, formatFunction, inspect, noChangeAssert;
     inspect = utils.inspect;
     flag = utils.flag;
-    /*
-      #
-      # Changes Matchers
-      #
-    */
-
     chai.Assertion.addMethod('when', function(val, options) {
@@ -58,4 +52,4 @@ var action, definedActions, done, isPromise, newPromise, object, promiseCallback, result, _i, _j, _len, _len1,
           } catch (error) {
-            done(new Error(error));
-            throw new Error(error);
+            done(error);
+            throw error;
           }
@@ -72,5 +66,3 @@ };
         }
-        flag(this, 'object', result);
       }
-      flag(this, 'negate', false);
       return this;
@@ -166,2 +158,108 @@ });
     });
+    chai.Assertion.addProperty('increase', function() {
+      var definedActions;
+      definedActions = flag(this, 'whenActions') || [];
+      definedActions.push({
+        negate: flag(this, 'negate'),
+        before: function(context) {
+          var startValue;
+          startValue = flag(context, 'whenObject')();
+          return flag(context, 'increaseStart', startValue);
+        },
+        after: function(context) {
+          var endValue, negate, object, startValue;
+          object = flag(context, 'whenObject');
+          endValue = object();
+          startValue = flag(context, 'increaseStart');
+          negate = flag(context, 'negate');
+          flag(context, 'negate', this.negate);
+          if (!negate) {
+            context.assert(startValue !== endValue, "expected `" + (formatFunction(object)) + "` to increase, but it did not change", "not supported");
+          }
+          context.assert(startValue < endValue, "expected `" + (formatFunction(object)) + "` to increase, but it decreased by " + (startValue - endValue), "expected `" + (formatFunction(object)) + "` not to increase, but it increased by " + (endValue - startValue));
+          return flag(context, 'negate', negate);
+        }
+      });
+      return flag(this, 'whenActions', definedActions);
+    });
+    chai.Assertion.addProperty('decrease', function() {
+      var definedActions;
+      definedActions = flag(this, 'whenActions') || [];
+      definedActions.push({
+        negate: flag(this, 'negate'),
+        before: function(context) {
+          var startValue;
+          startValue = flag(context, 'whenObject')();
+          return flag(context, 'decreaseStart', startValue);
+        },
+        after: function(context) {
+          var endValue, negate, object, startValue;
+          object = flag(context, 'whenObject');
+          endValue = object();
+          startValue = flag(context, 'decreaseStart');
+          negate = flag(context, 'negate');
+          flag(context, 'negate', this.negate);
+          if (!negate) {
+            context.assert(startValue !== endValue, "expected `" + (formatFunction(object)) + "` to decrease, but it did not change", "not supported");
+          }
+          context.assert(startValue > endValue, "expected `" + (formatFunction(object)) + "` to decrease, but it increased by " + (endValue - startValue), "expected `" + (formatFunction(object)) + "` not to decrease, but it decreased by " + (startValue - endValue));
+          return flag(context, 'negate', negate);
+        }
+      });
+      return flag(this, 'whenActions', definedActions);
+    });
+    byAtLeast = function(amount) {
+      var definedActions;
+      definedActions = flag(this, 'whenActions') || [];
+      definedActions.push({
+        negate: flag(this, 'negate'),
+        before: function(context) {
+          var startValue;
+          startValue = flag(context, 'whenObject')();
+          return flag(context, 'atLeastStart', startValue);
+        },
+        after: function(context) {
+          var difference, endValue, negate, object, startValue;
+          object = flag(context, 'whenObject');
+          endValue = object();
+          startValue = flag(context, 'atLeastStart');
+          negate = flag(context, 'negate');
+          flag(context, 'negate', this.negate);
+          difference = Math.abs(endValue - startValue);
+          context.assert(difference >= amount, "expected `" + (formatFunction(object)) + "` to change by at least " + amount + ", but changed by " + difference, "not supported");
+          return flag(context, 'negate', negate);
+        }
+      });
+      return flag(this, 'whenActions', definedActions);
+    };
+    chai.Assertion.addChainableMethod('atLeast', byAtLeast, function() {
+      return this;
+    });
+    byAtMost = function(amount) {
+      var definedActions;
+      definedActions = flag(this, 'whenActions') || [];
+      definedActions.push({
+        negate: flag(this, 'negate'),
+        before: function(context) {
+          var startValue;
+          startValue = flag(context, 'whenObject')();
+          return flag(context, 'atMostStart', startValue);
+        },
+        after: function(context) {
+          var difference, endValue, negate, object, startValue;
+          object = flag(context, 'whenObject');
+          endValue = object();
+          startValue = flag(context, 'atMostStart');
+          negate = flag(context, 'negate');
+          flag(context, 'negate', this.negate);
+          difference = Math.abs(endValue - startValue);
+          context.assert(difference <= amount, "expected `" + (formatFunction(object)) + "` to change by at most " + amount + ", but changed by " + difference, "not supported");
+          return flag(context, 'negate', negate);
+        }
+      });
+      return flag(this, 'whenActions', definedActions);
+    };
+    chai.Assertion.addChainableMethod('atMost', byAtMost, function() {
+      return this;
+    });
     formatFunction = function(func) {
@@ -168,0 +266,0 @@ return func.toString().replace(/^\s*function \(\) {\s*/, '').replace(/\s+}$/, '').replace(/\s*return\s*/, '');

package.json

@@ -6,3 +6,3 @@ {
   "keywords": [ "test", "assertion", "assert", "testing", "changes", "promises" ],
-  "version": "1.2.1",
+  "version": "1.3.0",
   "repository": {
@@ -9,0 +9,0 @@ "type": "git",

README.md

@@ -113,2 +113,44 @@ chai-changes
 
+### `increase`
+
+Assert if the value increases when an action is performed
+
+```coffeescript
+result = 0
+expect(-> result).to.increase.when -> result += 1
+expect(-> result).not.to.increase.when -> result
+expect(-> result).not.to.increase.when -> result -= 1
+```
+
+### `decrease`
+
+Assert if the value decreases when an action is performed
+
+```coffeescript
+result = 0
+expect(-> result).to.decrease.when -> result -= 1
+expect(-> result).not.to.decrease.when -> result
+expect(-> result).not.to.decrease.when -> result += 1
+```
+
+### `atLeast(amount)`
+
+Assert if the value has a minimal change of 'amount'
+
+```coffeescript
+result = 0
+expect(-> result).to.change.by.atLeast(4).when -> result += 5
+expect(-> result).to.change.by.atLeast(4).when -> result -= 10
+```
+
+### `atMost(amount)`
+
+Assert if the value has a maximum change of 'amount'
+
+```coffeescript
+result = 0
+expect(-> result).to.change.by.atMost(7).when -> result += 5
+expect(-> result).to.change.by.atMost(14).when -> result -= 10
+```
+
 ## Installation and Setup
@@ -115,0 +157,0 @@

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Improved metrics

Total package byte prevSize

40867

increased by54.99%

Lines of code

318

increased by45.21%

Number of lines in readme file

204

increased by25.93%

No dependency changes