!1206 【Powermgr】【3.0-LTS】同步master代码至3.0-LTS

Merge pull request !1206 from 小语/yuxi1126

powermgr/powermgrbattery/src/main/js/default/test/battery_unit.test.js

@@ -262,6 +262,21 @@ describe('appInfoTest', function () {
     brightness.setValue(10);
     brightness.setValue(0);
     brightness.setValue(255);
-    expect(0).assertEqual('0')
+    expect(0 == 0).assertTrue();
+  })
+
+  /**
+   * @tc.number battery_manager_js_2300
+   * @tc.name is_battery_present_test
+   * @tc.desc Battry Present Interface Test
+   */
+  it('is_battery_present_test', 0, function () {
+    var isBatteryPresent = batteryInfo.isBatteryPresent;
+    console.info('isBatteryPresent = ' + isBatteryPresent);
+    if (isBatteryPresent) {
+        expect(isBatteryPresent).assertTrue();
+    }else{
+        expect(isBatteryPresent).assertFalse();        
+    }
   })
 })