我試圖用很多方法來測試一個活動的單元測試。但經過大約31次測試後,應用程序因爲堆內存不足而死亡。爲什麼大型Android活動單元測試失敗?
1152 E SurfaceFlinger createSurface() failed, generateId = -12
1152 W WindowManager OutOfResourcesException creating surface
1152 I WindowManager Out of memory for surface! Looking for leaks...
1152 W WindowManager No leaked surfaces; killing applicatons!
1152 W ActivityManager Killing processes Free memory at adjustment 1
我已經做了單元測試與40相同的簡單的測試用例只是爲了找到這個問題。但感覺就像GC在測試過程中清理內存的速度不夠快。
這是我的leakTest測試用例:
package my.app;
import android.os.Debug;
import android.test.ActivityInstrumentationTestCase2;
import android.util.Log;
public class leakTest extends
ActivityInstrumentationTestCase2<TestActivityAndroid> {
String TAG = "leakTest";
TestActivityAndroid mActivity = null;
public leakTest() {
super(TestActivityAndroid.class);
}
protected void setUp() throws Exception {
super.setUp();
setActivityInitialTouchMode(false);
mActivity = getActivity();
}
protected void tearDown() throws Exception {
super.tearDown();
}
private void printHeapSize() {
Log.e(TAG,
"NativeHeapAllocatedSize = "
+ Debug.getNativeHeapAllocatedSize());
Log.e(TAG, "NativeHeapFreeSize = " + Debug.getNativeHeapFreeSize());
Log.e(TAG, "NativeHeapSIZE = " + Debug.getNativeHeapSize());
}
public void test_1() {
assertNotNull(mActivity);
}
public void test_2() {
assertNotNull(mActivity);
}
public void test_3() {
assertNotNull(mActivity);
}
public void test_4() {
assertNotNull(mActivity);
}
public void test_5() {
assertNotNull(mActivity);
}
public void test_6() {
assertNotNull(mActivity);
}
public void test_7() {
assertNotNull(mActivity);
}
public void test_8() {
assertNotNull(mActivity);
}
public void test_9() {
assertNotNull(mActivity);
}
public void test_10() {
assertNotNull(mActivity);
}
public void test_11() {
assertNotNull(mActivity);
}
public void test_12() {
assertNotNull(mActivity);
}
public void test_13() {
assertNotNull(mActivity);
}
public void test_14() {
assertNotNull(mActivity);
}
public void test_15() {
assertNotNull(mActivity);
}
public void test_16() {
assertNotNull(mActivity);
}
public void test_17() {
assertNotNull(mActivity);
}
public void test_18() {
assertNotNull(mActivity);
}
public void test_19() {
assertNotNull(mActivity);
}
public void test_20() {
assertNotNull(mActivity);
}
public void test_21() {
assertNotNull(mActivity);
}
public void test_22() {
assertNotNull(mActivity);
}
public void test_23() {
assertNotNull(mActivity);
}
public void test_24() {
assertNotNull(mActivity);
}
public void test_25() {
assertNotNull(mActivity);
}
public void test_26() {
assertNotNull(mActivity);
}
public void test_27() {
assertNotNull(mActivity);
}
public void test_28() {
assertNotNull(mActivity);
}
public void test_29() {
assertNotNull(mActivity);
}
public void test_30() {
assertNotNull(mActivity);
}
public void test_31() {
assertNotNull(mActivity);
}
public void test_32() {
assertNotNull(mActivity);
}
public void test_33() {
assertNotNull(mActivity);
}
public void test_34() {
assertNotNull(mActivity);
}
public void test_35() {
assertNotNull(mActivity);
}
public void test_36() {
assertNotNull(mActivity);
}
public void test_37() {
assertNotNull(mActivity);
}
public void test_38() {
assertNotNull(mActivity);
}
public void test_39() {
assertNotNull(mActivity);
}
public void test_40() {
assertNotNull(mActivity);
}
}
測試活性,其延伸的活動:
package my.app;
import android.app.Activity;
import android.os.Bundle;
public class TestActivityAndroid extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
}
這裏是天然的自由空間下降到低於30KB和比存儲器使用應用程序被殺害。
Applications Memory Usage (kB): Uptime: 3804373 Realtime: 3804373
** MEMINFO in pid 7315 [my.app] **
native dalvik other total
size: 4048 3271 N/A 7319
allocated: 3942 2306 N/A 6248
free: 105 965 N/A 1070
(Pss): 844 1590 1806 4240
(shared dirty): 1404 4120 2288 7812
(priv dirty): 736 672 992 2400 Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 11 Proxy Binders: 10
Death Recipients: 0
OpenSSL Sockets: 0
SQL
heap: 0 memoryUsed: 0
pageCacheOverflo: 0 largestMemAlloc: 0
Asset Allocations
zip:/data/app/my.app-1.apk:/resources.arsc: 1K
有人有更好的解決方案,在tearDown()內的2秒睡眠?我不喜歡tearDown()內的睡眠。而且由於我們在測試套件中有大約100次測試,所以2秒將會是一個巨大的延遲。
我希望有人可以幫助我,如果我的問題不清楚請讓我知道。
在此先感謝。
嗨,謝謝你的回覆。我想在我們目前的測試中爲每一項測試提供一個全新的活動。所以以前的測試不能影響下一個測試。但是我發現奇怪的是2秒的延遲修復了'OutOfResourcesException創建表面'錯誤。這感覺就像是Android中的一個錯誤,或者它不能足夠快地釋放表面資源。但現在我們只會接受2秒延遲,因爲它每天都在快速建立設置中運行。 – kuipers 2013-03-22 12:54:13