tests for can-reuse

Author: yyx990803

test/unit/specs/pipeline/can-reuse.js

@@ -0,0 +1,98 @@
+var testUtils = require('../util')
+var test = testUtils.test
+var assertCalls = testUtils.assertCalls
+
+describe('canReuse', function () {
+
+  it('allow', function (done) {
+    test({
+      a: {
+        canReuse: true,
+        activate: function (transition) {
+          // just for logging calls
+          transition.next()
+        }
+      }
+    }, function (router, calls) {
+      router.go('/a/b')
+      expect(router.app.$el.textContent).toBe('A B')
+      assertCalls(calls, ['a.activate'])
+      var A = router.app.$children[0]
+      router.go('/a/e')
+      assertCalls(calls, ['a.activate', 'a.canReuse'])
+      expect(router.app.$el.textContent).toBe('A E')
+      expect(router.app.$children[0]).toBe(A)
+      done()
+    })
+  })
+
+  it('deny', function (done) {
+    test({
+      a: {
+        canReuse: false,
+        activate: function (transition) {
+          // just for logging calls
+          transition.next()
+        }
+      }
+    }, function (router, calls) {
+      router.go('/a/b')
+      expect(router.app.$el.textContent).toBe('A B')
+      assertCalls(calls, ['a.activate'])
+      var A = router.app.$children[0]
+      router.go('/a/e')
+      assertCalls(calls, ['a.activate', 'a.canReuse', 'a.activate'])
+      expect(router.app.$el.textContent).toBe('A E')
+      expect(router.app.$children[0]).not.toBe(A)
+      done()
+    })
+  })
+
+  it('function allow', function (done) {
+    test({
+      a: {
+        canReuse: function () {
+          return true
+        },
+        activate: function (transition) {
+          // just for logging calls
+          transition.next()
+        }
+      }
+    }, function (router, calls) {
+      router.go('/a/b')
+      expect(router.app.$el.textContent).toBe('A B')
+      assertCalls(calls, ['a.activate'])
+      var A = router.app.$children[0]
+      router.go('/a/e')
+      assertCalls(calls, ['a.activate', 'a.canReuse'])
+      expect(router.app.$el.textContent).toBe('A E')
+      expect(router.app.$children[0]).toBe(A)
+      done()
+    })
+  })
+
+  it('function deny', function (done) {
+    test({
+      a: {
+        canReuse: function () {
+          return false
+        },
+        activate: function (transition) {
+          // just for logging calls
+          transition.next()
+        }
+      }
+    }, function (router, calls) {
+      router.go('/a/b')
+      expect(router.app.$el.textContent).toBe('A B')
+      assertCalls(calls, ['a.activate'])
+      var A = router.app.$children[0]
+      router.go('/a/e')
+      assertCalls(calls, ['a.activate', 'a.canReuse', 'a.activate'])
+      expect(router.app.$el.textContent).toBe('A E')
+      expect(router.app.$children[0]).not.toBe(A)
+      done()
+    })
+  })
+})

test/unit/specs/util.js

@@ -26,7 +26,9 @@ exports.test = function (configs, cb) {
     Object.keys(config).forEach(function (hook) {
       var fn = config[hook]
       config[hook] = function (transition) {
-        var res = fn(transition)
+        var res = typeof fn === 'function'
+          ? fn(transition)
+          : fn
         var event = route + '.' + hook
         calls.push(event)
         emitter.emit(event)
@@ -41,10 +43,17 @@ exports.test = function (configs, cb) {
         route: configs.a
       },
       subRoutes: {
-        '/b': { component: {
-          template: 'B',
-          route: configs.b
-        }}
+        '/b': {
+          component: {
+            template: 'B',
+            route: configs.b
+          }
+        },
+        '/e': {
+          component: {
+            template: 'E'
+          }
+        }
       }
     },
     '/c': {
@@ -53,10 +62,12 @@ exports.test = function (configs, cb) {
         route: configs.c
       },
       subRoutes: {
-        '/d': { component: {
-          template: 'D',
-          route: configs.d
-        }}
+        '/d': {
+          component: {
+            template: 'D',
+            route: configs.d
+          }
+        }
       }
     }
   })