com.facebook.litho.testing.assertj

Class ComponentConditions

java.lang.Object

com.facebook.litho.testing.assertj.ComponentConditions

public final class ComponentConditions
extends Object

Various helpers to match against InspectableComponents. This is to be used with SubComponentExtractor#subComponentWith(ComponentContext, Condition) and SubComponentDeepExtractor#deepSubComponentWith(ComponentContext, Condition).

Method Summary

Modifier and Type	Method and Description
static <any>	text(<any> condition) Matcher that succeeds if a InspectableComponent has text content that matches the provided condition.
static <any>	text(<any> matcher) Matcher that succeeds if a InspectableComponent has text content that matches the provided hamcrest matcher.
static <any>	textEquals(CharSequence text) Matcher that succeeds if a InspectableComponent has a text content that exactly matches the provided string.
static <any>	textEquals(String text)
static <any>	typeIs(Class<? extends ComponentLifecycle> clazz) Matcher that succeeds if the class of an InspectableComponent exactly matches the provided component class.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

typeIs

public static <any> typeIs(Class<? extends ComponentLifecycle> clazz)

Matcher that succeeds if the class of an InspectableComponent exactly matches the provided component class.

Note that this won't match sub-types. This should not have any real-world implications as Components are not sub-classed.

Example Use

 assertThat(c, mComponent)
   .has(
     allOf(
       deepSubComponentWith(c, typeIs(Text.class)),
       subComponentWith(c, typeIs(MyCustomComponent.class))));
 

textEquals

public static <any> textEquals(CharSequence text)

Matcher that succeeds if a InspectableComponent has a text content that exactly matches the provided string.

textEquals

public static <any> textEquals(String text)

See Also:

textEquals(CharSequence)

text

public static <any> text(<any> condition)

Matcher that succeeds if a InspectableComponent has text content that matches the provided condition.

N.B. We are implicitly casting the CharSequence to a String when matching so that more powerful matchers can be applied like sub-string matching.

Example Use

 mComponent = MyComponent.create(c).text("Cells interlinked within cells interlinked").build();
 assertThat(c, mComponent)
   .has(subComponentWith(c, startsWith("Cells")))
   .doesNotHave(subComponentWith(c, text(containsString("A Tall White Fountain Played."))));
 

text

public static <any> text(<any> matcher)

Matcher that succeeds if a InspectableComponent has text content that matches the provided hamcrest matcher.

Returns:

Wrapper around #text(Condition)