How to test for the appearance of a Toast message

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Would anyone know how to test for the appearance of a Toast message on an Activity?

I'm using code similar to what the OP posted on this question for testing my program flow from one activity to the next. I'd also like to be able to test for toast messages on particular activities.

Would anyone know how to test for the appearance of a Toast message on an Activity?

You can't -- sorry. By which, I mean there is no way to ask Android "hey, is a Toast showing? and what does it look like?".

How to test for the appearance of a Toast message, Would anyone know how to test for the appearance of a Toast message on an Activity? I'm using code similar to what the OP posted on this question for testing​  Questions: Would anyone know how to test for the appearance of a Toast message in android espresso? In robotium its easy & I used but started working in espresso but dont getting the exact command.

Hm, actually there is a possibility to test the appearance of a toast. Simply create a subclass of Toast (e.g. MyOwnToast) and use this one in your program instead of Toast. In this subclass you can overwrite the show() method to notify you, that the Toast is being shown.

Additionally you can store the Toast within the show() method in kind of a ToastDatabase singleton from where you can access the Toast and it's view also after it has been shown and destroyed (haven't tested this with Toasts, but I often do that with the result intents of activities to keep them available for further tests after they have been destroyed - so it should be no problem to implement this with Toasts).

Beware: maybe you have to clone the Toast object or it's corresponding view for the ToastDatabase because probably it will be null after the Toast has been destroyed. Hope this helps!

How to test for the appearance of a Toast message, Would anyone know how to test for the appearance of a Toast message on an Activity? I'm using code similar to what the OP posted on this question for testing​  Would anyone know how to test for the appearance of a Toast message in android espresso? In robotium its easy & I used but started working in espresso but dont getting the exact command. Thanks in advance

We actually can now test for toast messages using robolectric. The example below is how our team is doing this for now:

    @Test
    public void ccButtonDisplaysToast() throws NullPointerException {
        Button ccRedButton = (Button) findViewById(R.id.cc_red);
        cc_red.performClick(); --> this calls the actual onClickListener implementation which has the toast.
        ShadowLooper.idleMainLooper(YOUR_TIME_HERE); --> This may help you.
        assertThat(ShadowToast.getTextOfLatestToast().toString(), equalTo("TEST_YOUR_TEXT_HERE"));
    }

Hope this helps

Toasts overview, Creating a Custom Toast View. If a simple text message isn't enough, you can create a customized layout for your toast notification. To create a  The background color and icon used by a toast is controlled by the type attribute. For example, setting it to success displays the toast notification with a green background and checkmark icon. This toast displays for 5000ms, with a close button in the top right corner when the mode attribute is dismissible .

I check, the following works:

if(someToast == null)
    someToast = Toast.makeText(this, "sdfdsf", Toast.LENGTH_LONG);
boolean isShown = someToast.getView().isShown();

How to test toast message using Android Espresso, These are called toast messages, and are an important tool for Android app are now in places, let's take a look at what our test method itself could look like: To use this custom layout as Toast notification in our android application, we need to inflate the layout using following code. LayoutInflater inflater = getLayoutInflater (); View layout = inflater.inflate (R.layout.custom_toast, (ViewGroup) findViewById (R.id.custom_toast_layout));

you can choose Robolectric test framework.For checking toast, you can use it as below:

assertTrue(ShadowToast.showedCustomToast("message", R.id.message)); //R.id.message: textView ID

Validating Android Toast Messages, I'm trying to test the following Toast component: import React, { Component } from "react" import PropTypes from "prop-types" import Running this on iOS outputs a View with a Text message. My view We'll take a look at it. Toasts are not clickable. If user response to a status message is required, consider instead using a Notification. The Basics. First, instantiate a Toast object with one of the makeText() methods. This method takes three parameters: the application Context, the text message, and the duration for the toast. It returns a properly initialized Toast object.

How to test toast Messages · Issue #1750 · wix/Detox · GitHub, Would anyone know how to test for the appearance of a Toast message in android espresso In robotium its easy amp I used but started work [Windows 10 Tip] Disable Toast Notifications and Enable Classic Balloon Tips. In Windows 10, whenever a notification message is required to show to the user, its shown in the form of a toast notification. Toast notifications are a part of the new modern UI of Windows 10 which are shown in rectangular shape using slide-in and slide-out animation.

Checking toast message in android espresso, I'm able to capture the toast message on an Android emulator using API v27. Note that my tests Look at the “Console” tab of the test for the text “Toast element”. Bootstrap 4 Toast. The toast component is like an alert box that is only shown for a couple of seconds when something happens (i.e. when the user clicks on a button, submits a form, etc.).

How to read toast message in android - Mobile Testing, Description Check the toast message on a mobile device against an expected string value. Result is Passed if the values match within a specified timeout period  public static Toast makeText (Context context, CharSequence text, int duration) makes the toast containing text and duration. public void show () displays toast. public void setMargin (float horizontalMargin, float verticalMargin) changes the horizontal and vertical margin difference.

Comments
  • Thanks for that CommonsWare. I'll probably do something like populate a variable with the toast message when creating the toast. It'll be invisible to the user but will give me something to examine.
  • Voilà: myToast.getView().isShown().
  • Thanks for that lordfinga. Sounds like a neater solution than I described.
  • Good idea - but be careful when adding code to production code just for test purposes. I would recommend a method to disable this "test code" in the final production code, possibly by checking for the debugging flag in the manifest stackoverflow.com/a/4277868/383414
  • It seems to me that between the time you call performClick() and do the assert that it is possible that the toast hasn't appeared yet and will appear after the assert finishes. How do we account for this possibility?
  • Robolectric has a shadowHandler.idleMainLooper which has been deprecated. There is however a ShadowLooper.idleMainLooper() which has multiple implementations. One of them takes the "time" as a parameters to trigger the executions..
  • If we are indeed asking "how can an ActivityUnitTestCase assert that production code fired a Toast with such-and-so contents", then such a test should not depend on extra production code. If, for example, you refactored that code, you wouldn't want the test to break, when in production a real Toast still displays.
  • What is wait_for_text()? There is no method in the Android API with this name.
  • If you are using a language other than Java you should specify.
  • "wait_for_text" is a method in Calabash api in ruby