rename and fix assoc. test

lib/common/api/deprecate.js

@@ -11,20 +11,21 @@ const deprecate = function (oldName, newName, fn) {
 }
 
 // The method is renamed.
-deprecate.rename = (object, oldName, newName) => {
-  console.log('we are here')
+// nota bene: newName should already exist and
+// oldName is being injected for compatibility with old code
+deprecate.alias = function (object, deprecatedName, existingName) {
   let warned = false
   const newMethod = function () {
     if (!(warned || process.noDeprecation)) {
       warned = true
-      deprecate.warn(oldName, newName)
+      deprecate.warn(deprecatedName, existingName)
     }
-    return this[newName].apply(this, arguments)
+    return this[existingName].apply(this, arguments)
   }
   if (typeof object === 'function') {
-    object.prototype[oldName] = newMethod
+    object.prototype[deprecatedName] = newMethod
   } else {
-    object[oldName] = newMethod
+    object[deprecatedName] = newMethod
   }
 }
 

spec/api-deprecations-spec.js

@@ -1,5 +1,5 @@
 const assert = require('assert')
-const {deprecations, deprecate, ipcRenderer} = require('electron')
+const {deprecations, deprecate, nativeImage} = require('electron')
 
 describe.only('deprecations', () => {
   beforeEach(() => {
@@ -7,44 +7,53 @@ describe.only('deprecations', () => {
     process.throwDeprecation = true
   })
 
-  // it('allows a deprecation handler function to be specified', () => {
-  //   const messages = []
-  //
-  //   deprecations.setHandler((message) => {
-  //     messages.push(message)
-  //   })
-  //
-  //   deprecate.log('this is deprecated')
-  //   assert.deepEqual(messages, ['this is deprecated'])
-  // })
-  //
-  // it('returns a deprecation handler after one is set', () => {
-  //   const messages = []
-  //
-  //   deprecations.setHandler((message) => {
-  //     messages.push(message)
-  //   })
-  //
-  //   deprecate.log('this is deprecated')
-  //   assert(typeof deprecations.getHandler() === 'function')
-  // })
-  //
-  // it('returns a deprecation warning', () => {
-  //   const messages = []
-  //
-  //   deprecations.setHandler((message) => {
-  //     messages.push(message)
-  //   })
-  //
-  //   deprecate.warn('old', 'new')
-  //   assert.deepEqual(messages, [`'old' is deprecated. Use 'new' instead.`])
-  // })
+  it('allows a deprecation handler function to be specified', () => {
+    const messages = []
 
-  // it('throws an exception if no deprecation handler is specified', () => {
-  //   assert.throws(() => {
-  //     deprecate.log('this is deprecated')
-  //   }, /this is deprecated/)
-  // })
+    deprecations.setHandler((message) => {
+      messages.push(message)
+    })
+
+    deprecate.log('this is deprecated')
+    assert.deepEqual(messages, ['this is deprecated'])
+  })
+
+  it('returns a deprecation handler after one is set', () => {
+    const messages = []
+
+    deprecations.setHandler((message) => {
+      messages.push(message)
+    })
+
+    deprecate.log('this is deprecated')
+    assert(typeof deprecations.getHandler() === 'function')
+  })
+
+  it('returns a deprecation warning', () => {
+    const messages = []
+
+    deprecations.setHandler((message) => {
+      messages.push(message)
+    })
+
+    deprecate.warn('old', 'new')
+    assert.deepEqual(messages, [`'old' is deprecated. Use 'new' instead.`])
+  })
+
+  it('renames a method', () => {
+    assert.equal(typeof nativeImage.createFromDataUrl, 'undefined')
+    assert.equal(typeof nativeImage.createFromDataURL, 'function')
+
+    deprecate.alias(nativeImage, 'createFromDataUrl', 'createFromDataURL')
+
+    assert.equal(typeof nativeImage.createFromDataUrl, 'function')
+  })
+
+  it('throws an exception if no deprecation handler is specified', () => {
+    assert.throws(() => {
+      deprecate.log('this is deprecated')
+    }, /this is deprecated/)
+  })
 
   // it('deprecates a property', () => {
   //   deprecate.property(object, property, method)
@@ -57,11 +66,4 @@ describe.only('deprecations', () => {
   // it('forwards a method to member', () => {
   //   deprecate.member(object, method, member)
   // })
-
-  it('renames a method', () => {
-    assert(typeof ipcRenderer.sendSync === 'function')
-    assert(typeof ipcRenderer.sendChannelSync === 'undefined')
-    deprecate.rename(ipcRenderer, 'sendSync', 'sendChannelSync')
-    assert(typeof ipcRenderer.sendChannelSync === 'function')
-  })
 })