diff --git a/miscservices/BUILD.gn b/miscservices/BUILD.gn
index cd366a9d188ea048462ac2c959a4a71ca37a47cd..bf26586acb38e6cedd61629861b87940fa177489 100755
--- a/miscservices/BUILD.gn
+++ b/miscservices/BUILD.gn
@@ -14,7 +14,8 @@
 import("//build/ohos_var.gni")
 group("miscservices") {
   testonly = true
-  deps = [ "TimeTest_js:time_js_test",
-           "TimerTest_js:timer_js_test",  ]
-  
+  deps = [
+    "TimeTest_js:time_js_test",
+    "TimerTest_js:timer_js_test",
+  ]
 }
diff --git a/miscservices/TimeTest_js/src/main/js/default/test/SystemTimerJsunit.test.js b/miscservices/TimeTest_js/src/main/js/default/test/SystemTimerJsunit.test.js
new file mode 100644
index 0000000000000000000000000000000000000000..70654fd2f0fea427c44bc444a71433a16f9e396c
--- /dev/null
+++ b/miscservices/TimeTest_js/src/main/js/default/test/SystemTimerJsunit.test.js
@@ -0,0 +1,974 @@
+/*
+ * Copyright (C) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// @ts-nocheck
+import {describe, beforeAll, beforeEach, afterEach, afterAll, it, expect} from 'deccjsunit/index'
+import systemTimer from '@ohos.systemtimer'
+
+describe('TimerTest', function() {
+    console.log('start################################start');
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_0100
+     * @tc.name      Test systemTimer.Timer type = TIMER_TYPE_REALTIME
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test1',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_0100 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_0100 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_0200
+     * @tc.name      Test systemTimer.Timer type = TIMER_TYPE_REALTIME_WAKEUP
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test2',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_0200 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME_WAKEUP,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_0200 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_0300
+     * @tc.name      Test systemTimer.Timer type = TIMER_TYPE_EXACT
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test3',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_0300 start")
+        var options = {
+			type:TIMER_TYPE_EXACT,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_0300 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_0400
+     * @tc.name      Test systemTimer.Timer type = TIMER_TYPE_REALTIME
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test4',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_0400 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_0400 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_0500
+     * @tc.name      Test systemTimer.Timer triggerTime = 0
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test5',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_0500 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 0)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_0500 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_0600
+     * @tc.name      Test systemTimer.Timer triggerTime = 5000
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test6',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_0600 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 5000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_0600 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_0700
+     * @tc.name      Test systemTimer.Timer triggerTime = Number.MAX_VALUE/2
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test7',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_0700 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, Number.MAX_VALUE/2)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_0700 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_0800
+     * @tc.name      Test systemTimer.Timer triggerTime = Number.MAX_VALUE-1
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test8',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_0800 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, Number.MAX_VALUE-1)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_0800 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_0900
+     * @tc.name      Test systemTimer.Timer triggerTime = Number.MAX_VALUE
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test9',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_0900 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, Number.MAX_VALUE)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_0900 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_1000
+     * @tc.name      Test systemTimer.Timer repeat = true
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test10',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_1000 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:true,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_1000 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_1100
+     * @tc.name      Test systemTimer.Timer persistent = true
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test11',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_1100 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:true
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_1100 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_1200
+     * @tc.name      Test systemTimer.Timer repeat,persistent = true
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test12',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_1200 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:true,
+			persistent:true
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_1200 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_1300
+     * @tc.name      Test systemTimer.Timer create,start,stop,destroy 1000 timers
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test13',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_1300 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		for (var index = 0; index < 1000; index++)
+		{
+			console.log("create timer")
+			let timer = systemTimer.Timer(options)
+			expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+
+			console.log("start timer")
+			let startTimerRes = systemTimer.startTimer(timer, 100000)
+			expect(startTimerRes).assertEqual(true)
+
+			console.log("stop timer")
+			let stopTimerRes = systemTimer.stopTimer(timer)
+			expect(stopTimerRes).assertEqual(true)
+
+			console.log("destroy timer")
+			let destroyTimerRes = systemTimer.destroyTimer(timer)
+			expect(destroyTimerRes).assertEqual(true)
+			console.log('SUB_systemTimer_Timer_JS_API_1300 end');
+		}
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_1400
+     * @tc.name      Test systemTimer.Timer interval = 0
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test14',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_1400 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			interval:0,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_1400 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_1500
+     * @tc.name      Test systemTimer.Timer interval = 5000
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test15',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_1500 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			interval:5000,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_1500 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_1600
+     * @tc.name      Test systemTimer.Timer interval = Number.MAX_VALUE/2
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test16',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_1600 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			interval:Number.MAX_VALUE/2,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_1600 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_1700
+     * @tc.name      Test systemTimer.Timer interval = Number.MAX_VALUE-1
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test17',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_1700 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			interval:Number.MAX_VALUE-1,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_1700 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_1800
+     * @tc.name      Test systemTimer.Timer interval = Number.MAX_VALUE
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test18',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_1800 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			interval:Number.MAX_VALUE,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_1800 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_1900
+     * @tc.name      Test systemTimer.Timer WantAgent
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test19',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_1900 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			interval:100000,
+			persistent:false
+			//wantAgent:WantAgent
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_1900 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_2000
+     * @tc.name      Test systemTimer.Timer Called back when the timer goes off.
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test20',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_2000 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			interval:100000,
+			persistent:false,
+			callback:callbackFunction
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_2000 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_2100
+     * @tc.name      Test systemTimer.Timer start a not exist timer
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test21',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_2100 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start a not exist timer")
+		let startTimerRes = systemTimer.startTimer(timer + 1, 100000)
+		expect(startTimerRes).assertEqual(false)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_2100 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_2200
+     * @tc.name      Test systemTimer.Timer stop a not exist timer
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test22',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_2200 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop a not exist timer")
+		let stopTimerRes = systemTimer.stopTimer(timer + 1)
+		expect(stopTimerRes).assertEqual(false)
+		
+		console.log("stop the current timer")
+		stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_2200 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_2300
+     * @tc.name      Test systemTimer.Timer destroy a not exist timer
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test23',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_2300 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy a not exist timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer + 1)
+		expect(destroyTimerRes).assertEqual(false)
+		
+		console.log("destroy timer")
+		destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_2300 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_2400
+     * @tc.name      Test systemTimer.Timer stop a not started timer
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test24',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_2400 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("stop a not started timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(false)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_2400 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_2500
+     * @tc.name      Test systemTimer.Timer destroy a started timer
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test25',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_2500 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("destroy a started timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_2500 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_2600
+     * @tc.name      Test systemTimer.Timer repeat to start a timer
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test26',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_2600 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("start timer again")
+		startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_2600 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_2700
+     * @tc.name      Test systemTimer.Timer repeat to stop a timer
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test27',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_2700 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("stop timer again")
+		stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		console.log('SUB_systemTimer_Timer_JS_API_2700 end');
+	});
+
+	/**
+     * @tc.number    SUB_systemTimer_Timer_JS_API_2800
+     * @tc.name      Test systemTimer.Timer repeat to destroy a timer
+     * @tc.desc      Test systemTimer_Timer API functionality.
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+	it('systemTimer_Timer_test28',0, async () => {
+		console.log("SUB_systemTimer_Timer_JS_API_2800 start")
+        var options = {
+			type:TIMER_TYPE_REALTIME,
+			repeat:false,
+			persistent:false
+		}
+		console.log("create timer")
+        let timer = systemTimer.Timer(options)
+		expect(parseInt(timer) == parseFloat(timer)).assertEqual(true)
+		
+		console.log("start timer")
+		let startTimerRes = systemTimer.startTimer(timer, 100000)
+		expect(startTimerRes).assertEqual(true)
+		
+		console.log("stop timer")
+		let stopTimerRes = systemTimer.stopTimer(timer)
+		expect(stopTimerRes).assertEqual(true)
+		
+		console.log("destroy timer")
+		let destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(true)
+		
+		console.log("destroy timer again")
+		destroyTimerRes = systemTimer.destroyTimer(timer)
+		expect(destroyTimerRes).assertEqual(false)
+		console.log('SUB_systemTimer_Timer_JS_API_2800 end');
+	});
+
+	/**
+     * @function     Used for callback functions
+     * @tc.name      callbackFunction
+     */
+	function callbackFunction()
+	{
+		console.log("Start to call the callback function")
+	}
+})
\ No newline at end of file