Fix a few bugs in reducers/channels, start adding tests

client/.babelrc

@@ -8,6 +8,9 @@
     "development": {
       "plugins": ["react-hot-loader/babel"]
     },
+    "test": {
+      "plugins": ["transform-es2015-modules-commonjs"]
+    },
     "production": {
       "plugins": [
         "transform-react-inline-elements",

client/package.json

@@ -7,6 +7,7 @@
   "devDependencies": {
     "babel-core": "^6.23.1",
     "babel-eslint": "^7.1.1",
+    "babel-jest": "^19.0.0",
     "babel-loader": "^6.3.1",
     "babel-plugin-transform-react-constant-elements": "^6.23.0",
     "babel-plugin-transform-react-inline-elements": "^6.22.0",
@@ -29,6 +30,7 @@
     "gulp-concat": "^2.6.1",
     "gulp-cssnano": "^2.1.2",
     "gulp-util": "^3.0.8",
+    "jest": "^19.0.2",
     "style-loader": "^0.16.0",
     "through2": "^2.0.3",
     "webpack": "^2.4.1",
@@ -52,5 +54,9 @@
     "redux": "^3.6.0",
     "redux-thunk": "^2.2.0",
     "reselect": "^3.0.0"
+  },
+  "scripts": {
+    "test": "jest",
+    "test:watch": "npm test -- --watch"
   }
 }

client/src/js/__tests__/reducer-channels.test.js

@@ -0,0 +1,293 @@
+import Immutable from 'immutable';
+import reducer from '../reducers/channels';
+import * as actions from '../actions';
+import { connect } from '../actions/server';
+
+describe('reducers/channels', () => {
+  it('removes channels on PART', () => {
+    let state = Immutable.fromJS({
+      srv1: {
+        chan1: {}, chan2: {}, chan3: {}
+      },
+      srv2: {
+        chan1: {}
+      }
+    });
+
+    state = reducer(state, {
+      type: actions.PART,
+      server: 'srv1',
+      channels: ['chan1', 'chan3']
+    });
+
+    expect(state.toJS()).toEqual({
+      srv1: {
+        chan2: {}
+      },
+      srv2: {
+        chan1: {}
+      }
+    });
+  });
+
+  it('handles SOCKET_PART', () => {
+    let state = reducer(undefined, socket_join('srv', 'chan1', 'nick1'));
+    state = reducer(state, socket_join('srv', 'chan1', 'nick2'));
+    state = reducer(state, socket_join('srv', 'chan2', 'nick2'));
+
+    state = reducer(state, {
+      type: actions.SOCKET_PART,
+      server: 'srv',
+      channel: 'chan1',
+      user: 'nick2'
+    });
+
+    expect(state.toJS()).toEqual({
+      srv: {
+        chan1: {
+          users: [
+            { mode: '', nick: 'nick1', renderName: 'nick1' },
+          ]
+        },
+        chan2: {
+          users: [
+            { mode: '', nick: 'nick2', renderName: 'nick2' }
+          ]
+        }
+      }
+    });
+  });
+
+  it('handles SOCKET_JOIN', () => {
+    const state = reducer(undefined, socket_join('srv', 'chan1', 'nick1'));
+
+    expect(state.toJS()).toEqual({
+      srv: {
+        chan1: {
+          users: [
+            { mode: '', nick: 'nick1', renderName: 'nick1' }
+          ]
+        }
+      }
+    });
+  });
+
+  it('handles SOCKET_QUIT', () => {
+    let state = reducer(undefined, socket_join('srv', 'chan1', 'nick1'));
+    state = reducer(state, socket_join('srv', 'chan1', 'nick2'));
+    state = reducer(state, socket_join('srv', 'chan2', 'nick2'));
+
+    state = reducer(state, {
+      type: actions.SOCKET_QUIT,
+      server: 'srv',
+      user: 'nick2'
+    });
+
+    expect(state.toJS()).toEqual({
+      srv: {
+        chan1: {
+          users: [
+            { mode: '', nick: 'nick1', renderName: 'nick1' }
+          ]
+        },
+        chan2: {
+          users: []
+        }
+      }
+    });
+  });
+
+  it('handles SOCKET_NICK', () => {
+    let state = reducer(undefined, socket_join('srv', 'chan1', 'nick1'));
+    state = reducer(state, socket_join('srv', 'chan1', 'nick2'));
+    state = reducer(state, socket_join('srv', 'chan2', 'nick2'));
+
+    state = reducer(state, {
+      type: actions.SOCKET_NICK,
+      server: 'srv',
+      old: 'nick1',
+      new: 'nick3'
+    });
+
+    expect(state.toJS()).toEqual({
+      srv: {
+        chan1: {
+          users: [
+            { mode: '', nick: 'nick2', renderName: 'nick2' },
+            { mode: '', nick: 'nick3', renderName: 'nick3' }
+          ]
+        },
+        chan2: {
+          users: [
+            { mode: '', nick: 'nick2', renderName: 'nick2' }
+          ]
+        }
+      }
+    });
+  });
+
+  it('handles SOCKET_USERS', () => {
+    const state = reducer(undefined, {
+      type: actions.SOCKET_USERS,
+      server: 'srv',
+      channel: 'chan1',
+      users: [
+        'user3',
+        'user2',
+        '@user4',
+        'user1',
+        '+user5'
+      ]
+    });
+
+    expect(state.toJS()).toEqual({
+      srv: {
+        chan1: {
+          users: [
+            { mode: 'o', nick: 'user4', renderName: '@user4' },
+            { mode: 'v', nick: 'user5', renderName: '+user5' },
+            { mode: '', nick: 'user1', renderName: 'user1' },
+            { mode: '', nick: 'user2', renderName: 'user2' },
+            { mode: '', nick: 'user3', renderName: 'user3' }
+          ]
+        }
+      }
+    })
+  });
+
+  it('handles SOCKET_TOPIC', () => {
+    const state = reducer(undefined, {
+      type: actions.SOCKET_TOPIC,
+      server: 'srv',
+      channel: 'chan1',
+      topic: 'the topic'
+    });
+
+    expect(state.toJS()).toEqual({
+      srv: {
+        chan1: {
+          topic: 'the topic'
+        }
+      }
+    });
+  });
+
+  it('handles SOCKET_MODE', () => {
+    let state = reducer(undefined, socket_join('srv', 'chan1', 'nick1'));
+    state = reducer(state, socket_join('srv', 'chan1', 'nick2'));
+    state = reducer(state, socket_join('srv', 'chan2', 'nick2'));
+
+    state = reducer(state, socket_mode('srv', 'chan1', 'nick1', 'o', ''));
+
+    expect(state.toJS()).toEqual({
+      srv: {
+        chan1: {
+          users: [
+            { mode: 'o', nick: 'nick1', renderName: '@nick1' },
+            { mode: '', nick: 'nick2', renderName: 'nick2' }
+          ]
+        },
+        chan2: {
+          users: [
+            { mode: '', nick: 'nick2', renderName: 'nick2' }
+          ]
+        }
+      }
+    });
+
+    state = reducer(state, socket_mode('srv', 'chan1', 'nick1' ,'v', 'o'));
+    state = reducer(state, socket_mode('srv', 'chan1', 'nick2', 'o', ''));
+    state = reducer(state, socket_mode('srv', 'chan2', 'not_there', 'x', ''));
+
+    expect(state.toJS()).toEqual({
+      srv: {
+        chan1: {
+          users: [
+            { mode: 'o', nick: 'nick2', renderName: '@nick2' },
+            { mode: 'v', nick: 'nick1', renderName: '+nick1' }
+          ]
+        },
+        chan2: {
+          users: [
+            { mode: '', nick: 'nick2', renderName: 'nick2' }
+          ]
+        }
+      }
+    });
+  });
+
+  it('handles SOCKET_CHANNELS', () => {
+    const state = reducer(undefined, {
+      type: actions.SOCKET_CHANNELS,
+      data: [
+        { server: 'srv', name: 'chan1', topic: 'the topic' },
+        { server: 'srv', name: 'chan2' },
+        { server: 'srv2', name: 'chan1' }
+      ]
+    });
+
+    expect(state.toJS()).toEqual({
+      srv: {
+        chan1: { topic: 'the topic', users: [] },
+        chan2: { users: [] }
+      },
+      srv2: {
+        chan1: { users: [] }
+      }
+    });
+  });
+
+  it('handles SOCKET_SERVERS', () => {
+    const state = reducer(undefined, {
+      type: actions.SOCKET_SERVERS,
+      data: [
+        { host: '127.0.0.1' },
+        { host: 'thehost' }
+      ]
+    });
+
+    expect(state.toJS()).toEqual({
+      '127.0.0.1': {},
+      thehost: {}
+    });
+  });
+
+  it('optimistically adds the server on CONNECT', () => {
+    const state = reducer(undefined, connect('127.0.0.1:1337', 'nick', {}));
+
+    expect(state.toJS()).toEqual({
+      '127.0.0.1': {}
+    });
+  });
+
+  it('removes the server on DISCONNECT', () => {
+    let state = Immutable.fromJS({
+      srv: {},
+      srv2: {}
+    });
+
+    state = reducer(state, {
+      type: actions.DISCONNECT,
+      server: 'srv2'
+    });
+
+    expect(state.toJS()).toEqual({
+      srv: {}
+    });
+  });
+});
+
+function socket_join(server, channel, user) {
+  return {
+    type: 'SOCKET_JOIN',
+    server, user,
+    channels: [channel]
+  };
+}
+
+function socket_mode(server, channel, user, add, remove) {
+  return {
+    type: 'SOCKET_MODE',
+    server, channel, user, add, remove
+  };
+}

client/src/js/reducers/channels.js

@@ -107,12 +107,16 @@ export default createReducer(Map(), {
     const { server } = action;
     return state.withMutations(s => {
       s.get(server).forEach((v, channel) => {
-        s.updateIn([server, channel, 'users'], users =>
-          users.update(
-            users.findIndex(user => user.nick === action.old),
+        s.updateIn([server, channel, 'users'], users => {
+          const i = users.findIndex(user => user.nick === action.old);
+          if (i < 0) {
+            return users;
+          }
+
+          return users.update(i,
             user => updateRenderName(user.set('nick', action.new))
-          ).sort(compareUsers)
-        );
+          ).sort(compareUsers);
+        });
       });
     });
   },
@@ -131,9 +135,13 @@ export default createReducer(Map(), {
   [actions.SOCKET_MODE](state, action) {
     const { server, channel, user, remove, add } = action;
 
-    const i = state.getIn([server, channel, 'users']).findIndex(u => u.nick === user);
-    return state
-      .updateIn([server, channel, 'users', i], u => {
+    return state.updateIn([server, channel, 'users'], users => {
+      const i = users.findIndex(u => u.nick === user);
+      if (i < 0) {
+        return users;
+      }
+
+      return users.update(i, u => {
         let mode = u.mode;
         let j = remove.length;
         while (j--) {
@@ -141,8 +149,8 @@ export default createReducer(Map(), {
         }
 
         return updateRenderName(u.set('mode', mode + add));
-      })
-      .updateIn([server, channel, 'users'], users => users.sort(compareUsers));
+      }).sort(compareUsers);
+    });
   },
 
   [actions.SOCKET_CHANNELS](state, action) {