android - Detecting toasts in Marshmallow -

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i'm writing ui tests espresso , i'm trying assert toast messages. problem i'm having code works on lollipop fails on marshmallow , can't understand why.

my code opening dialog, filling email , clicking button. should bring toast , (i confirmed visual inspection on device) test fails detect toast.

for purpose created custom matcher class toasts:

import android.os.ibinder; import android.support.test.espresso.root; import android.view.windowmanager;  import org.hamcrest.description; import org.hamcrest.matcher; import org.hamcrest.typesafematcher;  import static com.google.android.exoplayer.util.assertions.checkargument; import static com.google.android.exoplayer.util.assertions.checknotnull; import static org.hamcrest.corematchers.equalto;  public class toastmatcher{      public static matcher<root> withtoasttext(string toasttext) {         // use preconditions fail fast when test creating invalid matcher.         checkargument(!(toasttext.equals(null)));         return withtoasttext(equalto(toasttext));     }      public static matcher<root> withtoasttext(final matcher<string> matchertext) {          // use preconditions fail fast when test creating invalid matcher.         checknotnull(matchertext);         return new typesafematcher<root>() {              public void describeto(description description) {                 description.appendtext("is toast");             }              @override             public boolean matchessafely(root root) {                 int type = root.getwindowlayoutparams().get().type;                 if ((type == windowmanager.layoutparams.type_toast)) {                     ibinder windowtoken = root.getdecorview().getwindowtoken();                     ibinder apptoken = root.getdecorview().getapplicationwindowtoken();                     if (windowtoken == apptoken) {                         // windowtoken == apptoken means window isn't contained other windows.                         // if window activity, have type_base_application.                         return true;                     }                 }                 return false;             }          };     } }

as test case

@test public void success() {     string successmessage = mactivityrule.getactivity().getresources().getstring(r.string.info_recover_instructions);     string ok = mactivityrule.getactivity().getresources().getstring(android.r.string.ok);     // click forgot button     onview(withid(r.id.lg_forgot)).perform(click());     // fill email     onview(withclassname(endswith("edittext"))).perform(typetext(username));     // click ok button     onview(withtext(ok))             .check(matches(isenabled()))             .perform(click());     // assert toast     onview(withtext(successmessage)).inroot(toastmatcher.withtoasttext(successmessage)).check(matches(isdisplayed())); }

as said, works fine on lollipop, on marshmallow gives me following error:

android.support.test.espresso.nomatchingrootexception: matcher 'is toast' did not match of following roots: [root{application-window-token=android.view.viewrootimpl$w@a66b932, window-token=android.view.viewrootimpl$w@a66b932, has-window-focus=true, layout-params-type=2, layout-params-string=wm.layoutparams{(0,0)(wrapxwrap) gr=#11 sim=#20 ty=2 fl=#1820002 fmt=-3 wanim=0x103045c needsmenukey=2}, decor-view-string=decorview{id=-1, visibility=visible, width=1026, height=483, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=1}}, root{application-window-token=android.view.viewrootimpl$w@8d64683, window-token=android.view.viewrootimpl$w@8d64683, has-window-focus=false, layout-params-type=2, layout-params-string=wm.layoutparams{(0,0)(wrapxwrap) gr=#11 sim=#20 ty=2 fl=#1800002 fmt=-3 wanim=0x103045c needsmenukey=2}, decor-view-string=decorview{id=-1, visibility=visible, width=1026, height=598, has-focus=true, has-focusable=true, has-window-focus=false, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=1}}, root{application-window-token=android.view.viewrootimpl$w@90a2000, window-token=android.view.viewrootimpl$w@90a2000, has-window-focus=false, layout-params-type=1, layout-params-string=wm.layoutparams{(0,0)(fillxfill) ty=1 fl=#81810100 wanim=0x103045b needsmenukey=2}, decor-view-string=decorview{id=-1, visibility=visible, width=1080, height=1920, has-focus=true, has-focusable=true, has-window-focus=false, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=3}}]

am doing wrong or should done differently on android marshmallow?

try out. not sure if work on marshmallow:

onview(withtext(r.string.toasttext))         .inroot(withdecorview(not(is(mactivityrule.getactivity().getwindow().getdecorview()))))         .check(matches(isdisplayed()));

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