com.google.common.truth
Class Truth

java.lang.Object
  com.google.common.truth.Truth

public class Truth
extends Object

Truth - a proposition framework for tests, supporting JUnit style assertion and assumption semantics in a fluent style. Truth is the simplest entry point class. A developer can statically import the assert_() method to get easy access to the library's capabilities. Then, instead of writing:

Assert.assertEquals(a,b);
 Assert.assertTrue(c);
 Assert.assertTrue(d.contains(a) && d.contains(e));
 Assert.assertTrue(d.contains(a) || d.contains(q) || d.contains(z));
 

one would write:

assert_().that(aString).equals(bString);
 assert_().that(aBoolean).isTrue();
 assert_().that(collection).has().item(aString);
 assert_().that(collection).containsAllOf(aString, bString);
 assert_().that(collection).containsAnyOf(aString, qString, zString);
 

Tests should be easier to read, and flow more clearly.

Author:

David Saff, Christian Gruber ([email protected])

Field Summary

static TestVerb	ASSERT
static FailureStrategy	THROW_ASSERTION_ERROR

Constructor Summary

Truth()

Method Summary

static TestVerb	assert_()
static BooleanSubject	assertThat(Boolean target)
static PrimitiveBooleanArraySubject	assertThat(boolean[] target)
static PrimitiveCharArraySubject	assertThat(char[] target)
static ClassSubject	assertThat(Class<?> target)
static <T,C extends Collection<T>> CollectionSubject<? extends CollectionSubject<?,T,C>,T,C>	assertThat(Collection<T> target)
static PrimitiveDoubleArraySubject	assertThat(double[] target)
static PrimitiveFloatArraySubject	assertThat(float[] target)
static PrimitiveIntArraySubject	assertThat(int[] target)
static IntegerSubject	assertThat(Integer target)
static <T,C extends Iterable<T>> IterableSubject<? extends IterableSubject<?,T,C>,T,C>	assertThat(Iterable<T> target)
static <T,C extends List<T>> ListSubject<? extends ListSubject<?,T,C>,T,C>	assertThat(List<T> target)
static IntegerSubject	assertThat(Long target)
static PrimitiveLongArraySubject	assertThat(long[] target)
static <K,V,M extends Map<K,V>> MapSubject<? extends MapSubject<?,K,V,M>,K,V,M>	assertThat(Map<K,V> target)
static Subject<DefaultSubject,Object>	assertThat(Object target)
static <T> OptionalSubject<T>	assertThat(com.google.common.base.Optional<T> target)
static StringSubject	assertThat(String target)
static <T> ObjectArraySubject<T>	assertThat(T[] target)

Methods inherited from class java.lang.Object

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

Field Detail

THROW_ASSERTION_ERROR

public static final FailureStrategy THROW_ASSERTION_ERROR

ASSERT

public static final TestVerb ASSERT

Constructor Detail

Truth

public Truth()

Method Detail

assert_

public static TestVerb assert_()

assertThat

@CheckReturnValue
public static Subject<DefaultSubject,Object> assertThat(Object target)

assertThat

@CheckReturnValue
@GwtIncompatible(value="ClassSubject.java")
public static ClassSubject assertThat(Class<?> target)

assertThat

@CheckReturnValue
public static IntegerSubject assertThat(Long target)

assertThat

@CheckReturnValue
public static IntegerSubject assertThat(Integer target)

assertThat

@CheckReturnValue
public static BooleanSubject assertThat(Boolean target)

assertThat

@CheckReturnValue
public static StringSubject assertThat(String target)

assertThat

@CheckReturnValue
public static <T,C extends Iterable<T>> IterableSubject<? extends IterableSubject<?,T,C>,T,C> assertThat(Iterable<T> target)

assertThat

@CheckReturnValue
public static <T,C extends Collection<T>> CollectionSubject<? extends CollectionSubject<?,T,C>,T,C> assertThat(Collection<T> target)

assertThat

@CheckReturnValue
public static <T,C extends List<T>> ListSubject<? extends ListSubject<?,T,C>,T,C> assertThat(List<T> target)

assertThat

@CheckReturnValue
public static <T> ObjectArraySubject<T> assertThat(T[] target)

assertThat

@CheckReturnValue
public static PrimitiveBooleanArraySubject assertThat(boolean[] target)

assertThat

@CheckReturnValue
public static PrimitiveIntArraySubject assertThat(int[] target)

assertThat

@CheckReturnValue
public static PrimitiveLongArraySubject assertThat(long[] target)

assertThat

@CheckReturnValue
public static PrimitiveCharArraySubject assertThat(char[] target)

assertThat

@CheckReturnValue
public static PrimitiveFloatArraySubject assertThat(float[] target)

assertThat

@CheckReturnValue
public static PrimitiveDoubleArraySubject assertThat(double[] target)

assertThat

@CheckReturnValue
public static <T> OptionalSubject<T> assertThat(com.google.common.base.Optional<T> target)

assertThat

@CheckReturnValue
public static <K,V,M extends Map<K,V>> MapSubject<? extends MapSubject<?,K,V,M>,K,V,M> assertThat(Map<K,V> target)