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Android Espresso made more fluent :coffee:

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Overview

Cortado provides a layer of abstraction above Espresso, so it's a bit easier to use.

Remember: It is Google Espresso underneath. You can still mess up your tests the same way you would when using pure Espresso. Cortado just gives you a bit nicer way to communicate with Espresso.

Espresso vs. Cortado

  1. Get a Matcher for clickable views with R.id.text and with text NOT "Example"

    Framework Code example
    Espresso Matchers.allOf(withId(R.id.text), isClickable(), Matchers.not(withText("Example")));
    Cortado Cortado.view().withId(R.id.text).and().isClickable().and().not().withText("Example");

  2. Get a Matcher for views that have text example or have parent FrameLayout

    Framework Code example
    Espresso Matchers.anyOf(withText("example"), withParent(isAssignableFrom(FrameLayout.class)));
    Cortado Cortado.view().withText("example").or().withParent(isAssignableFrom(FrameLayout.class));

  3. Click on a View with R.id.button

    Framework Code example
    Espresso Espresso.onView(withId(R.id.button)).perform(ViewActions.click());
    Cortado Cortado.onView().withId(R.id.button).perform().click();

  4. Check if a View with text example is visible

    Framework Code example
    Espresso Espresso.onView(withText("example")).check(ViewAssertions.matches(isDisplayed()));
    Cortado Cortado.onView().withText("example").check().matches(isDisplayed());

  5. Replace a text on enabled view with R.id.edit

    Framework Code example
    Espresso Espresso.onView(Matchers.allOf(withId(R.id.edit),isEnabled())).perform(ViewActions.replaceText("changed"));
    Cortado Cortado.onView().withId(R.id.edit).and().isEnabled().perform().replaceText("changed");

Features

  1. Creating an instance of org.hamcrest.Matcher<View>

    org.hamcrest.Matcher<View> matcher = Cortado.view().withId(R.id.example);

  2. Creating an instance of android.support.test.espresso.ViewInteraction

    ViewInteraction viewInteraction = Cortado.onView().withId(R.id.example).perform(click());

  3. Fluently creating Matchers.allOf(...)

    Cortado.view().withId(R.id.example).and().withText("example").and().isClickable();

  4. Fluently creating Matchers.anyOf(...)

    Cortado.view().withId(R.id.example).or().withText("example").or().isClickable();

  5. Fluently negating conditions

    Cortado.view().not().withId(R.id.example).and().withText("example").and().not().isClickable();

  6. Fluently performing single action (on ViewInteraction)

    Cortado.onView().withId(R.id.example).perform().click();

  7. Fluently checking matches (on ViewInteraction)

    Cortado.onView().withId(R.id.example).check().matches(Cortado.view().withText("example"));

Compatibility

I wanted the api of Cortado to be compatible with Espresso as much as possible. That's why you can do stuff like that:

Espresso.onView(Cortado.view().withId(R.id.example).and().withText("Example")).perform(click());

Including In Your Project

dependencies {
    androidTestImplementation 'com.bartoszlipinski:cortado:1.2.0'
}

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License

Copyright 2017 Bartosz Lipiński

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.