java - Espresso testing NestedScrollView - "Error performing 'scroll to' on view 'with id:" -
i need scroll down through nestedscrollview in order test xml file espresso, error message: "error performing 'scroll to' on view 'with id:"
several other posts seem have similar problem.
i have followed instructions this: android espresso nestedscrollview, how scroll bottom
now forementioned error, , found post: scrolling view attempted, view not displayed
i have no padding in nestedscrollview - tried removing padding xml alltogether, testing purposes, made no difference.
this test (so far not supposed anything, scroll down):
@test public void testscrolldownabilityofdetailsscrollview(){ gotospecificitemonstream(streamitemwithoneimage); onview(withid(r.id.end_of_details)) .perform(scrolltoaction.betterscrollto()); } it uses custom made scroll action class:
public final class scrolltoaction implements viewaction { private static final string tag = scrolltoaction.class.getsimplename(); @suppresswarnings("unchecked") @override public matcher<view> getconstraints() { return allof(witheffectivevisibility(visibility.visible), isdescendantofa(anyof( isassignablefrom(scrollview.class), isassignablefrom(horizontalscrollview.class), isassignablefrom(nestedscrollview.class)))); } @override public void perform(uicontroller uicontroller, view view) { if (isdisplayingatleast(80).matches(view)) { log.i(tag, "view displayed. returning."); return; } rect rect = new rect(); view.getdrawingrect(rect); if (!view.requestrectangleonscreen(rect, true /* immediate */)) { log.w(tag, "scrolling view requested, none of parents scrolled."); } uicontroller.loopmainthreaduntilidle(); if (!isdisplayingatleast(80).matches(view)) { throw new performexception.builder() .withactiondescription(this.getdescription()) .withviewdescription(humanreadables.describe(view)) .withcause(new runtimeexception( "scrolling view attempted, view not displayed")) .build(); } } public static viewaction betterscrollto() { return viewactions.actionwithassertions(new scrolltoaction()); } @override public string getdescription() { return "scroll to"; }} the custom made scrolltoaction class there because normal scrollto method hardcoded scrollview , horizontalscrollview, not nestedscrollview.
this xml file trying test:
<?xml version="1.0" encoding="utf-8"?> <android.support.v4.widget.nestedscrollview xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:id="@+id/scrollview" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_view_behavior"> <relativelayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal"> <framelayout android:id="@+id/fl" android:background="#fbfbfb" android:layout_margin="0dp" android:layout_width="match_parent" android:layout_height="350dp"> <android.support.v4.view.viewpager android:id="@+id/container" android:layout_width="match_parent" android:layout_height="wrap_content" app:layout_behavior="@string/appbar_scrolling_view_behavior" /> <imageview android:id="@+id/location" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="@dimen/text_margin" android:layout_gravity="left|top" android:background="@null" android:src="@drawable/ic_location_white" android:paddingleft="-8dp" /> <textview android:id="@+id/textviewdistance" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_torightof="@id/location" android:textappearance="?android:attr/textappearancemedium" android:layout_margin="@dimen/text_margin" android:layout_gravity="left|top" android:shadowcolor="#262424" android:shadowdx="1" android:shadowdy="1" android:shadowradius="2" android:textcolor="#fbfbfb" android:textsize="22dp" android:singleline="false" android:paddingleft="24dp" /> <textview android:id="@+id/textviewprice" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textappearance="?android:attr/textappearancemedium" android:layout_margin="@dimen/text_margin" android:layout_gravity="right|top" android:shadowcolor="#262424" android:shadowdx="1" android:shadowdy="1" android:shadowradius="2" android:textcolor="#fbfbfb" android:textsize="22dp"/> <me.relex.circleindicator.circleindicator android:id="@+id/indicator" android:layout_width="match_parent" android:layout_height="40dp" android:layout_gravity="bottom" android:shadowcolor="#262424" android:shadowdx="1" android:shadowdy="1" android:shadowradius="1"/> </framelayout> <linearlayout android:layout_below="@id/fl" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <textview android:id="@+id/textviewtitle" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="left" android:layout_margin="@dimen/text_margin" android:textcolor="@color/colorchecktomblack" android:textstyle="bold" android:textsize="20dp" /> <textview android:id="@+id/textviewdescription" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginleft="@dimen/text_margin" android:layout_marginright="@dimen/text_margin" android:gravity="left" android:textcolor="@color/colorchecktomblack" android:textsize="18dp" android:layout_weight="0.56" /> <relativelayout android:layout_width="match_parent" android:layout_height="65dp" android:paddingtop="30dp"> <imagebutton android:id="@+id/buttonwatchlist" android:src="@drawable/ic_checktom" android:background="@null" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="left" android:layout_marginleft="55dp" android:layout_marginstart="55dp" android:layout_alignparenttop="true" android:layout_alignparentleft="true" android:layout_alignparentstart="true" android:onclick="launchwatchlistactivity" android:paddingtop="2dp"/> <imagebutton android:id="@+id/buttonmessage" android:src="@drawable/ic_messages" android:background="@null" android:scalex="1.2" android:scaley="1.2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:layout_alignparenttop="true" android:layout_centerhorizontal="true" android:onclick="launchmessageactivity" android:paddingtop="7dp"/> <imagebutton android:id="@+id/buttonshare" android:src="@drawable/ic_share" android:background="@null" android:scalex="1.5" android:scaley="1.5" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginright="54dp" android:layout_marginend="54dp" android:layout_alignparenttop="true" android:layout_alignparentright="true" android:layout_alignparentend="true" android:onclick="launchshareactivity"/> </relativelayout> <relativelayout android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content" android:padding="2dp"> <textview android:id="@+id/textviewwatchlist" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="watchlist" android:layout_marginleft="41dp" android:layout_marginstart="41dp" android:layout_alignparenttop="true" android:layout_alignparentleft="true" android:layout_alignparentstart="true" /> <textview android:id="@+id/textviewmessage" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="message" android:layout_gravity="center_horizontal" android:layout_alignparenttop="true" android:layout_centerhorizontal="true" /> <textview android:id="@+id/textviewshare" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="share" android:layout_gravity="center_horizontal" android:layout_alignparenttop="true" android:layout_alignparentright="true" android:layout_alignparentend="true" android:layout_marginright="52dp" android:layout_marginend="52dp" /> </relativelayout> <linearlayout android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center"> <textview android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="_________________________________________" android:paddingtop="25dp"/> </linearlayout> <linearlayout android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center"> <de.hdodenhof.circleimageview.circleimageview android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/imageview" android:layout_centerhorizontal="true" android:id="@+id/circleview" android:scalex="0.4" android:scaley="0.4" android:layout_margintop="-20dp" android:layout_marginbottom="-60dp" /> </linearlayout> <linearlayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_gravity="center"> <linearlayout android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center"> <textview android:id="@+id/textviewsellername" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textsize="18dp"/> </linearlayout> <linearlayout android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center"> <textview android:id="@+id/textviewsellerdestination" android:layout_width="wrap_content" android:layout_height="wrap_content" android:paddingbottom="20dp" /> <textview android:id="@+id/end_of_details" android:layout_width="match_parent" android:layout_height="wrap_content" /> </linearlayout> </linearlayout> </linearlayout> </relativelayout> </android.support.v4.widget.nestedscrollview> when test fails, full output get:
android.support.test.espresso.performexception: error performing 'scroll to' on view 'with id: com.checktom.checktom:id/end_of_details'. @ android.support.test.espresso.performexception$builder.build(performexception.java:83) @ android.support.test.espresso.base.defaultfailurehandler.getuserfriendlyerror(defaultfailurehandler.java:80) @ android.support.test.espresso.base.defaultfailurehandler.handle(defaultfailurehandler.java:56) @ android.support.test.espresso.viewinteraction.runsynchronouslyonuithread(viewinteraction.java:184) @ android.support.test.espresso.viewinteraction.doperform(viewinteraction.java:115) @ android.support.test.espresso.viewinteraction.perform(viewinteraction.java:87) @ com.checktom.checktom.applicationtest.testscrolldownabilityofdetailsscrollview(applicationtest.java:279) @ java.lang.reflect.method.invoke(native method) @ java.lang.reflect.method.invoke(method.java:372) @ org.junit.runners.model.frameworkmethod$1.runreflectivecall(frameworkmethod.java:50) @ org.junit.internal.runners.model.reflectivecallable.run(reflectivecallable.java:12) @ org.junit.runners.model.frameworkmethod.invokeexplosively(frameworkmethod.java:47) @ org.junit.internal.runners.statements.invokemethod.evaluate(invokemethod.java:17) @ org.junit.internal.runners.statements.runbefores.evaluate(runbefores.java:26) @ android.support.test.internal.statement.uithreadstatement.evaluate(uithreadstatement.java:55) @ android.support.test.rule.activitytestrule$activitystatement.evaluate(activitytestrule.java:270) @ org.junit.rules.runrules.evaluate(runrules.java:20) @ org.junit.runners.parentrunner.runleaf(parentrunner.java:325) @ org.junit.runners.blockjunit4classrunner.runchild(blockjunit4classrunner.java:78) @ org.junit.runners.blockjunit4classrunner.runchild(blockjunit4classrunner.java:57) @ org.junit.runners.parentrunner$3.run(parentrunner.java:290) @ org.junit.runners.parentrunner$1.schedule(parentrunner.java:71) @ org.junit.runners.parentrunner.runchildren(parentrunner.java:288) @ org.junit.runners.parentrunner.access$000(parentrunner.java:58) @ org.junit.runners.parentrunner$2.evaluate(parentrunner.java:268) @ org.junit.runners.parentrunner.run(parentrunner.java:363) @ org.junit.runners.suite.runchild(suite.java:128) @ org.junit.runners.suite.runchild(suite.java:27) @ org.junit.runners.parentrunner$3.run(parentrunner.java:290) @ org.junit.runners.parentrunner$1.schedule(parentrunner.java:71) @ org.junit.runners.parentrunner.runchildren(parentrunner.java:288) @ org.junit.runners.parentrunner.access$000(parentrunner.java:58) @ org.junit.runners.parentrunner$2.evaluate(parentrunner.java:268) @ org.junit.runners.parentrunner.run(parentrunner.java:363) @ org.junit.runner.junitcore.run(junitcore.java:137) @ org.junit.runner.junitcore.run(junitcore.java:115) @ android.support.test.internal.runner.testexecutor.execute(testexecutor.java:59) @ android.support.test.runner.androidjunitrunner.onstart(androidjunitrunner.java:262) @ android.app.instrumentation$instrumentationthread.run(instrumentation.java:1933) caused by: java.lang.runtimeexception: scrolling view attempted, view not displayed @ com.checktom.checktom.scrolltoaction.perform(scrolltoaction.java:52) @ android.support.test.espresso.viewinteraction$1.run(viewinteraction.java:144) @ java.util.concurrent.executors$runnableadapter.call(executors.java:422) @ java.util.concurrent.futuretask.run(futuretask.java:237) @ android.os.handler.handlecallback(handler.java:739) @ android.os.handler.dispatchmessage(handler.java:95) @ android.os.looper.loop(looper.java:145) @ android.app.activitythread.main(activitythread.java:6938) @ java.lang.reflect.method.invoke(native method) @ java.lang.reflect.method.invoke(method.java:372) @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:1404) @ com.android.internal.os.zygoteinit.main(zygoteinit.java:1199) tests ran completion.
i can tell run runtime exception in scrolltoaction class's perform method, have yet find way solve it.
in first post linked, new betterscrollto method seemed work charm.
i did this:
onview(withid(r.id.viewtoscroll) .perform(nestedscrollto()) .check(matches(isdisplayed())); where nestedscrollto() is:
public static viewaction nestedscrollto() { return new viewaction() { @override public matcher<view> getconstraints() { return matchers.allof( isdescendantofa(isassignablefrom(nestedscrollview.class)), witheffectivevisibility(viewmatchers.visibility.visible)); } @override public string getdescription() { return "view not nestedscrollview"; } @override public void perform(uicontroller uicontroller, view view) { try { nestedscrollview nestedscrollview = (nestedscrollview) findfirstparentlayoutofclass(view, nestedscrollview.class); if (nestedscrollview != null) { nestedscrollview.scrollto(0, view.gettop()); } else { throw new exception("unable find nestedscrollview parent."); } } catch (exception e) { throw new performexception.builder() .withactiondescription(this.getdescription()) .withviewdescription(humanreadables.describe(view)) .withcause(e) .build(); } uicontroller.loopmainthreaduntilidle(); } }; } private static view findfirstparentlayoutofclass(view view, class<? extends view> parentclass) { viewparent parent = new framelayout(view.getcontext()); viewparent incrementview = null; int = 0; while (parent != null && !(parent.getclass() == parentclass)) { if (i == 0) { parent = findparent(view); } else { parent = findparent(incrementview); } incrementview = parent; i++; } return (view) parent; } private static viewparent findparent(view view) { return view.getparent(); } private static viewparent findparent(viewparent view) { return view.getparent(); }
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