cuculus - npm Package Compare versions

Comparing version 0.1.0 to 0.2.0

lib/cuculus.js

@@ -1,2 +0,2 @@
-var ORIGINAL = Symbol('ORIGINAL');
+var PREVIOUS = Symbol('PREVIOUS');
 var ON_RESTORE = Symbol('ON_RESTORE');
@@ -25,2 +25,3 @@
             original = require(name);
+            cached = require.cache[path];
         } catch (err) {
@@ -43,3 +44,3 @@ throw new Error('Could not modify non existing module "' + name + '"');
     };
-    cache[ORIGINAL] = original;
+    cache[PREVIOUS] = cached || { exports: original };
     cache[ON_RESTORE] = onRestore;
@@ -54,18 +55,31 @@
 
-exports.restore = function(name) {
-    var cached, original, path;
+exports.restore = function(name, steps) {
+    steps = steps || -1;
 
-    try {
-        path = require.resolve(name);
-    } catch (err) {
-        throw new Error('Could not restore non existing module "' + name + '"');
-    }
+    function makeRestore(count) {
+        var cached, previous, path;
 
-    if ( (cached = require.cache[path]) && (original = cached[ORIGINAL]) ) {
-        require.cache[path] = { exports: original };
+        if ( (count - steps) == 0 ) {
+            return;
+        }
 
-        cached[ON_RESTORE].forEach(function(fn) {
-            fn.call(null);
-        });
+        try {
+            path = require.resolve(name);
+        } catch (err) {
+            throw new Error('Could not restore non existing module "' + name + '"');
+        }
+
+        if ( (cached = require.cache[path]) && (previous = cached[PREVIOUS]) ) {
+            require.cache[path] = previous;
+
+            cached[ON_RESTORE].forEach(function(fn) {
+                fn.call(null);
+            });
+
+            // step on top
+            makeRestore(count + 1);
+        }
     }
+
+    makeRestore(0);
 };

package.json

 {
   "name": "cuculus",
-  "version": "0.1.0",
+  "version": "0.2.0",
+  "engines" : { "node" : ">=0.12.0" },
   "description": "Simplest require mocking",
@@ -5,0 +6,0 @@ "author": {

README.md

@@ -93,7 +93,11 @@ #  [![NPM version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Dependency Status][daviddm-image]][daviddm-url]
 
-##### cuculus.modify(name: string, replacer: Function(original: Any, onRestore: Function(fn: Function))) : Function()
+##### cuculus.modify(name: string, replacer: Function(current: Any, onRestore: Function(fn: Function))) : Function()
 
-Modifies original module with `replacer` function. If `replacer` modifies object, then `restore`
+Modifies current module with `replacer` function. If `replacer` modifies object, then `restore`
 method will not restore the changes, until you not register the backupers with `onRestore` function.
 
+##### cuculus.restore(name: string[, steps: number])
+
+Restores module `name`. If it was modified multiple times, restores to the root, until the `steps` limit is not given.
+
 ## License
@@ -100,0 +104,0 @@

test/test.js

@@ -68,13 +68,17 @@ var assert = require('assert');
 		it('should restore original value', function() {
-			var stub, spy;
+			var spy;
 
 			// before
-			stub = {};
-			spy = sinon.spy();
+			spyA = sinon.spy();
+			spyB = sinon.spy();
 
 			// when
-			cuculus.modify("fs", function(original, onRestore) {
-				onRestore(spy);
-				return stub;
+			cuculus.modify("fs", function(current, onRestore) {
+				onRestore(spyA);
+				return {};
 			});
+			cuculus.modify("fs", function(current, onRestore) {
+				onRestore(spyB);
+				return {};
+			});
 			cuculus.restore("fs");
@@ -84,5 +88,7 @@
 			expect(require("fs")).equal(fs);
-			expect(spy.callCount).equal(1);
+			expect(spyA.callCount).equal(1);
+			expect(spyB.callCount).equal(1);
+			expect(spyB.calledBefore(spyA)).to.be.true;
 		});
 	});
 });

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Found 1 instance in 1 package

Fixed alerts

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Improved metrics

Total package byte prevSize

7568

increased by10.39%

Lines of code

140

increased by12.9%

Number of lines in readme file

113

increased by3.67%

No dependency changes