more cli tests

cli.js

@@ -39,7 +39,7 @@ if (argv.help || argv.h) {
         console.log('Using profile', profile);
     }
 
-    console.log('Switching on', selectedMonitors);
+    console.log('Switching on', selectedMonitors.length ? selectedMonitors : 'all connected monitors');
 
     devices.then(devices => {
         const xrandrOptions = swm.generateXrandrOptions(selectedMonitors, devices);

test/cli.tests.js

@@ -52,5 +52,67 @@ describe('cli', () => {
         assert.equal(consoleLogSpy.args[1].join(' '), 'LVDS1: Connected');
         assert.equal(consoleLogSpy.args[2].join(' '), 'HDMI2: Disconnected');
     });
+
+    describe('switching', () => {
+        let minimistStub;
+        let selectedMonitors;
+        let deviceData;
+        let getDevicesStub;
+        let generateXrandrOptionsStub;
+        let switchDevicesStub;
+        let executePostCmdStub;
+
+        beforeEach(() => {
+            selectedMonitors = ['LVDS1'];
+            minimistStub = sandbox.stub();
+            minimistStub.returns({
+                _: selectedMonitors,
+                postCmd: '[some post cmd]'
+            });
+
+            deviceData = {
+                LVDS1: {connected: true},
+                HDMI2: {connected: false}
+            };
+
+            getDevicesStub = sandbox.stub().returns({
+                then: cb => cb(deviceData)
+            });
+            generateXrandrOptionsStub = sandbox.stub().returns('[some xrandr options]');
+            switchDevicesStub = sandbox.stub();
+            executePostCmdStub = sandbox.stub();
+
+            const cli = proxyquire('../cli.js', {
+                'minimist': minimistStub,
+                './swm.js': {
+                    getDevices: getDevicesStub,
+                    generateXrandrOptions: generateXrandrOptionsStub,
+                    switchDevices: switchDevicesStub,
+                    executePostCmd: executePostCmdStub
+                },
+                './config.js': {}
+            });
+        });
+
+        it('calls getDevices', () => {
+            assert.equal(getDevicesStub.callCount, 1, 'calls device stub');
+        });
+
+        it('calls generateXrandrOptions', () => {
+            assert.equal(generateXrandrOptionsStub.callCount, 1, 'calls generateXrandrOptions');
+            assert.equal(generateXrandrOptionsStub.args[0][0], selectedMonitors);
+        });
+
+        it('calls switchDevices', () => {
+           assert.equal(switchDevicesStub.callCount, 1);
+           assert.equal(switchDevicesStub.args[0][0], '[some xrandr options]');
+        });
+
+        it('calls executePostCmd', () => {
+           assert.equal(executePostCmdStub.callCount, 1);
+           assert.equal(executePostCmdStub.args[0][0], '[some post cmd]');
+
+        });
+    });
 });