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How to use BasicErrorMessageFactory class of org.assertj.core.error package

Best Assertj code snippet using org.assertj.core.error.BasicErrorMessageFactory

Source:ApplicationContextAssert.java

...19import org.assertj.core.api.AbstractObjectAssert;20import org.assertj.core.api.AbstractThrowableAssert;21import org.assertj.core.api.Assertions;22import org.assertj.core.api.MapAssert;23import org.assertj.core.error.BasicErrorMessageFactory;24import org.springframework.beans.factory.NoSuchBeanDefinitionException;25import org.springframework.boot.test.context.runner.ApplicationContextRunner;26import org.springframework.context.ApplicationContext;27import org.springframework.util.Assert;28import static org.assertj.core.api.Assertions.assertThat;29/**30 * AssertJ {@link org.assertj.core.api.Assert assertions} that can be applied to an31 * {@link ApplicationContext}.32 *33 * @param <C> The application context type34 * @author Phillip Webb35 * @since 2.0.036 * @see ApplicationContextRunner37 * @see AssertableApplicationContext38 */39public class ApplicationContextAssert<C extends ApplicationContext>40		extends AbstractAssert<ApplicationContextAssert<C>, C> {41	private final Throwable startupFailure;42	/**43	 * Create a new {@link ApplicationContextAssert} instance.44	 * @param applicationContext the source application context45	 * @param startupFailure the startup failure or {@code null}46	 */47	ApplicationContextAssert(C applicationContext, Throwable startupFailure) {48		super(applicationContext, ApplicationContextAssert.class);49		Assert.notNull(applicationContext, "ApplicationContext must not be null");50		this.startupFailure = startupFailure;51	}52	/**53	 * Verifies that the application context contains a bean with the given name.54	 * <p>55	 * Example: <pre class="code">56	 * assertThat(context).hasBean("fooBean"); </pre>57	 * @param name the name of the bean58	 * @return {@code this} assertion object.59	 * @throws AssertionError if the application context did not start60	 * @throws AssertionError if the application context does not contain a bean with the61	 * given name62	 */63	public ApplicationContextAssert<C> hasBean(String name) {64		if (this.startupFailure != null) {65			throwAssertionError(new BasicErrorMessageFactory(66					"%nExpecting:%n <%s>%nto have bean named:%n <%s>%nbut context failed to start",67					getApplicationContext(), name));68		}69		if (findBean(name) == null) {70			throwAssertionError(new BasicErrorMessageFactory(71					"%nExpecting:%n <%s>%nto have bean named:%n <%s>%nbut found no such bean",72					getApplicationContext(), name));73		}74		return this;75	}76	/**77	 * Verifies that the application context contains a single bean with the given type.78	 * <p>79	 * Example: <pre class="code">80	 * assertThat(context).hasSingleBean(Foo.class); </pre>81	 * @param type the bean type82	 * @return {@code this} assertion object.83	 * @throws AssertionError if the application context did not start84	 * @throws AssertionError if the application context does no beans of the given type85	 * @throws AssertionError if the application context contains multiple beans of the86	 * given type87	 */88	public ApplicationContextAssert<C> hasSingleBean(Class<?> type) {89		if (this.startupFailure != null) {90			throwAssertionError(new BasicErrorMessageFactory(91					"%nExpecting:%n <%s>%nto have a single bean of type:%n <%s>%nbut context failed to start",92					getApplicationContext(), type));93		}94		String[] names = getApplicationContext().getBeanNamesForType(type);95		if (names.length == 0) {96			throwAssertionError(new BasicErrorMessageFactory(97					"%nExpecting:%n <%s>%nto have a single bean of type:%n <%s>%nbut found no beans of that type",98					getApplicationContext(), type));99		}100		if (names.length > 1) {101			throwAssertionError(new BasicErrorMessageFactory(102					"%nExpecting:%n <%s>%nto have a single bean of type:%n <%s>%nbut found:%n <%s>",103					getApplicationContext(), type, names));104		}105		return this;106	}107	/**108	 * Verifies that the application context does not contain any beans of the given type.109	 * <p>110	 * Example: <pre class="code">111	 * assertThat(context).doesNotHaveBean(Foo.class); </pre>112	 * @param type the bean type113	 * @return {@code this} assertion object.114	 * @throws AssertionError if the application context did not start115	 * @throws AssertionError if the application context contains any beans of the given116	 * type117	 */118	public ApplicationContextAssert<C> doesNotHaveBean(Class<?> type) {119		if (this.startupFailure != null) {120			throwAssertionError(new BasicErrorMessageFactory(121					"%nExpecting:%n <%s>%nnot to have any beans of type:%n <%s>%nbut context failed to start",122					getApplicationContext(), type));123		}124		String[] names = getApplicationContext().getBeanNamesForType(type);125		if (names.length > 0) {126			throwAssertionError(new BasicErrorMessageFactory(127					"%nExpecting:%n <%s>%nnot to have a beans of type:%n <%s>%nbut found:%n <%s>",128					getApplicationContext(), type, names));129		}130		return this;131	}132	/**133	 * Verifies that the application context does not contain a beans of the given name.134	 * <p>135	 * Example: <pre class="code">136	 * assertThat(context).doesNotHaveBean("fooBean"); </pre>137	 * @param name the name of the bean138	 * @return {@code this} assertion object.139	 * @throws AssertionError if the application context did not start140	 * @throws AssertionError if the application context contains a beans of the given141	 * name142	 */143	public ApplicationContextAssert<C> doesNotHaveBean(String name) {144		if (this.startupFailure != null) {145			throwAssertionError(new BasicErrorMessageFactory(146					"%nExpecting:%n <%s>%nnot to have any beans of name:%n <%s>%nbut context failed to start",147					getApplicationContext(), name));148		}149		try {150			Object bean = getApplicationContext().getBean(name);151			throwAssertionError(new BasicErrorMessageFactory(152					"%nExpecting:%n <%s>%nnot to have a bean of name:%n <%s>%nbut found:%n <%s>",153					getApplicationContext(), name, bean));154		}155		catch (NoSuchBeanDefinitionException ex) {156		}157		return this;158	}159	/**160	 * Obtain the beans names of the given type from the application context, the names161	 * becoming the object array under test.162	 * <p>163	 * Example: <pre class="code">164	 * assertThat(context).getBeanNames(Foo.class).containsOnly("fooBean"); </pre>165	 * @param <T> the bean type166	 * @param type the bean type167	 * @return array assertions for the bean names168	 * @throws AssertionError if the application context did not start169	 */170	public <T> AbstractObjectArrayAssert<?, String> getBeanNames(Class<T> type) {171		if (this.startupFailure != null) {172			throwAssertionError(new BasicErrorMessageFactory(173					"%nExpecting:%n <%s>%nto get beans names with type:%n <%s>%nbut context failed to start",174					getApplicationContext(), type));175		}176		return Assertions.assertThat(getApplicationContext().getBeanNamesForType(type))177				.as("Bean names of type <%s> from <%s>", type, getApplicationContext());178	}179	/**180	 * Obtain a single bean of the given type from the application context, the bean181	 * becoming the object under test. If no beans of the specified type can be found an182	 * assert on {@code null} is returned.183	 * <p>184	 * Example: <pre class="code">185	 * assertThat(context).getBean(Foo.class).isInstanceOf(DefaultFoo.class);186	 * assertThat(context).getBean(Bar.class).isNull();</pre>187	 * @param <T> the bean type188	 * @param type the bean type189	 * @return bean assertions for the bean, or an assert on {@code null} if the no bean190	 * is found191	 * @throws AssertionError if the application context did not start192	 * @throws AssertionError if the application context contains multiple beans of the193	 * given type194	 */195	public <T> AbstractObjectAssert<?, T> getBean(Class<T> type) {196		if (this.startupFailure != null) {197			throwAssertionError(new BasicErrorMessageFactory(198					"%nExpecting:%n <%s>%nto contain bean of type:%n <%s>%nbut context failed to start",199					getApplicationContext(), type));200		}201		String[] names = getApplicationContext().getBeanNamesForType(type);202		if (names.length > 1) {203			throwAssertionError(new BasicErrorMessageFactory(204					"%nExpecting:%n <%s>%nsingle bean of type:%n <%s>%nbut found:%n <%s>",205					getApplicationContext(), type, names));206		}207		T bean = (names.length == 0 ? null208				: getApplicationContext().getBean(names[0], type));209		return Assertions.assertThat(bean).as("Bean of type <%s> from <%s>", type,210				getApplicationContext());211	}212	/**213	 * Obtain a single bean of the given name from the application context, the bean214	 * becoming the object under test. If no bean of the specified name can be found an215	 * assert on {@code null} is returned.216	 * <p>217	 * Example: <pre class="code">218	 * assertThat(context).getBean("foo").isInstanceOf(Foo.class);219	 * assertThat(context).getBean("foo").isNull();</pre>220	 * @param name the name of the bean221	 * @return bean assertions for the bean, or an assert on {@code null} if the no bean222	 * is found223	 * @throws AssertionError if the application context did not start224	 */225	public AbstractObjectAssert<?, Object> getBean(String name) {226		if (this.startupFailure != null) {227			throwAssertionError(new BasicErrorMessageFactory(228					"%nExpecting:%n <%s>%nto contain a bean of name:%n <%s>%nbut context failed to start",229					getApplicationContext(), name));230		}231		Object bean = findBean(name);232		return Assertions.assertThat(bean).as("Bean of name <%s> from <%s>", name,233				getApplicationContext());234	}235	/**236	 * Obtain a single bean of the given name and type from the application context, the237	 * bean becoming the object under test. If no bean of the specified name can be found238	 * an assert on {@code null} is returned.239	 * <p>240	 * Example: <pre class="code">241	 * assertThat(context).getBean("foo", Foo.class).isInstanceOf(DefaultFoo.class);242	 * assertThat(context).getBean("foo", Foo.class).isNull();</pre>243	 * @param <T> the bean type244	 * @param name the name of the bean245	 * @param type the bean type246	 * @return bean assertions for the bean, or an assert on {@code null} if the no bean247	 * is found248	 * @throws AssertionError if the application context did not start249	 * @throws AssertionError if the application context contains a bean with the given250	 * name but a different type251	 */252	@SuppressWarnings("unchecked")253	public <T> AbstractObjectAssert<?, T> getBean(String name, Class<T> type) {254		if (this.startupFailure != null) {255			throwAssertionError(new BasicErrorMessageFactory(256					"%nExpecting:%n <%s>%nto contain a bean of name:%n <%s> (%s)%nbut context failed to start",257					getApplicationContext(), name, type));258		}259		Object bean = findBean(name);260		if (bean != null && type != null && !type.isInstance(bean)) {261			throwAssertionError(new BasicErrorMessageFactory(262					"%nExpecting:%n <%s>%nto contain a bean of name:%n <%s> (%s)%nbut found:%n <%s> of type <%s>",263					getApplicationContext(), name, type, bean, bean.getClass()));264		}265		return Assertions.assertThat((T) bean).as(266				"Bean of name <%s> and type <%s> from <%s>", name, type,267				getApplicationContext());268	}269	private Object findBean(String name) {270		try {271			return getApplicationContext().getBean(name);272		}273		catch (NoSuchBeanDefinitionException ex) {274			return null;275		}276	}277	/**278	 * Obtain a map bean names and instances of the given type from the application279	 * context, the map becoming the object under test. If no bean of the specified type280	 * can be found an assert on an empty {@code map} is returned.281	 * <p>282	 * Example: <pre class="code">283	 * assertThat(context).getBeans(Foo.class).containsKey("foo");284	 * </pre>285	 * @param <T> the bean type286	 * @param type the bean type287	 * @return bean assertions for the beans, or an assert on an empty {@code map} if the288	 * no beans are found289	 * @throws AssertionError if the application context did not start290	 */291	public <T> MapAssert<String, T> getBeans(Class<T> type) {292		if (this.startupFailure != null) {293			throwAssertionError(new BasicErrorMessageFactory(294					"%nExpecting:%n <%s>%nto get beans of type:%n <%s> (%s)%nbut context failed to start",295					getApplicationContext(), type, type));296		}297		return Assertions.assertThat(getApplicationContext().getBeansOfType(type))298				.as("Beans of type <%s> from <%s>", type, getApplicationContext());299	}300	/**301	 * Obtain the failure that stopped the application context from running, the failure302	 * becoming the object under test.303	 * <p>304	 * Example: <pre class="code">305	 * assertThat(context).getFailure().containsMessage("missing bean");306	 * </pre>307	 * @return assertions on the cause of the failure308	 * @throws AssertionError if the application context started without a failure309	 */310	public AbstractThrowableAssert<?, ? extends Throwable> getFailure() {311		hasFailed();312		return assertThat(this.startupFailure);313	}314	/**315	 * Verifies that the application has failed to start.316	 * <p>317	 * Example: <pre class="code"> assertThat(context).hasFailed();318	 * </pre>319	 * @return {@code this} assertion object.320	 * @throws AssertionError if the application context started without a failure321	 */322	public ApplicationContextAssert<C> hasFailed() {323		if (this.startupFailure == null) {324			throwAssertionError(new BasicErrorMessageFactory(325					"%nExpecting:%n <%s>%nto have failed%nbut context started successfully",326					getApplicationContext()));327		}328		return this;329	}330	/**331	 * Verifies that the application has not failed to start.332	 * <p>333	 * Example: <pre class="code"> assertThat(context).hasNotFailed();334	 * </pre>335	 * @return {@code this} assertion object.336	 * @throws AssertionError if the application context failed to start337	 */338	public ApplicationContextAssert<C> hasNotFailed() {339		if (this.startupFailure != null) {340			throwAssertionError(new BasicErrorMessageFactory(341					"%nExpecting:%n <%s>%nto have not failed:%nbut context failed to start",342					getApplicationContext()));343		}344		return this;345	}346	protected final C getApplicationContext() {347		return this.actual;348	}349	protected final Throwable getStartupFailure() {350		return this.startupFailure;351	}352}...

BasicErrorMessageFactory

Using AI Code Generation

1package com.javatpoint;  2import org.assertj.core.api.AbstractAssert;  3import org.assertj.core.error.BasicErrorMessageFactory;  4public class EmployeeAssert extends AbstractAssert<EmployeeAssert, Employee>{  5public EmployeeAssert(Employee actual) {  6super(actual, EmployeeAssert.class);  7}  8public static EmployeeAssert assertThat(Employee actual) {  9return new EmployeeAssert(actual);  10}  11public EmployeeAssert hasName(String name) {  12if(actual.getName().equals(name)) {  13return this;  14}  15failWithMessage("Expected name to be <%s> but was <%s>", name, actual.getName());  16return this;  17}  18public EmployeeAssert hasAge(int age) {  19if(actual.getAge() == age) {  20return this;  21}  22failWithMessage("Expected age to be <%s> but was <%s>", age, actual.getAge());  23return this;  24}  25public EmployeeAssert hasSalary(double salary) {  26if(actual.getSalary() == salary) {  27return this;  28}  29failWithMessage("Expected salary to be <%s> but was <%s>", salary, actual.getSalary());  30return this;  31}  32public EmployeeAssert hasDesignation(String designation) {  33if(actual.getDesignation().equals(designation)) {  34return this;  35}  36failWithMessage("Expected designation to be <%s> but was <%s>", designation, actual.getDesignation());  37return this;  38}  39}40package com.javatpoint;  41import static org.assertj.core.api.Assertions.assertThat;  42import org.junit.Test;  43public class EmployeeTest {  44public void testAssertThat() {  45Employee employee = new Employee();  46employee.setName("John");  47employee.setAge(30);  48employee.setSalary(1000);  49employee.setDesignation("Developer");  50assertThat(employee).hasName("John").hasAge(30).hasSalary(1000).hasDesignation("Developer");  51}  52}53package com.javatpoint;  54public class Employee {  55private String name;  56private int age;  57private double salary;  58private String designation;  59public String getName() {  60return name;  61}  62public void setName(String name) {  63this.name = name;  64}  65public int getAge() {  66return age;  67}  68public void setAge(int age) {  69this.age = age;  70}

BasicErrorMessageFactory

Using AI Code Generation

1import org.assertj.core.error.BasicErrorMessageFactory;2import org.assertj.core.error.ErrorMessageFactory;3public class CustomErrorMessageFactory extends BasicErrorMessageFactory {4    public CustomErrorMessageFactory(String message, Object... arguments) {5        super(message, arguments);6    }7    public static ErrorMessageFactory customErrorMessage(String message, Object... arguments) {8        return new CustomErrorMessageFactory(message, arguments);9    }10}11We can now create our custom error message factory by using the customErrorMessage() method. The following code snippet shows how to create a custom error message factory:12import org.assertj.core.error.BasicErrorMessageFactory;13import org.assertj.core.error.ErrorMessageFactory;14public class CustomErrorMessageFactory extends BasicErrorMessageFactory {15    public CustomErrorMessageFactory(String message, Object... arguments) {16        super(message, arguments);17    }18    public static ErrorMessageFactory customErrorMessage(String message, Object... arguments) {19        return new CustomErrorMessageFactory(message, arguments);20    }21}22public class AssertJCustomErrorMessageFactory {23    public static void main(String[] args) {24        String actual = "This is a test";25        String expected = "This is not a test";26        assertThat(actual).as("Error message").isEqualTo(expected);27    }28}

BasicErrorMessageFactory

Using AI Code Generation

1import org.assertj.core.api.AbstractThrowableAssert;2import org.assertj.core.api.Assertions;3import org.assertj.core.error.BasicErrorMessageFactory;4import org.assertj.core.internal.Objects;5import org.assertj.core.util.VisibleForTesting;6import org.junit.Test;7import org.junit.runner.RunWith;8import org.junit.runners.JUnit4;9@RunWith(JUnit4.class)10public class BasicErrorMessageFactoryTest {11  public void should_create_error_message() {12    String message = "error message";13    String errorMessage = new BasicErrorMessageFactory(message).create(null, null);14    Assertions.assertThat(errorMessage).isEqualTo(message);15  }16  public void should_create_error_message_with_arguments() {17    String message = "error message with %s and %s";18    Object[] arguments = { "arg1", "arg2" };19    String errorMessage = new BasicErrorMessageFactory(message, arguments).create(null, null);20    Assertions.assertThat(errorMessage).isEqualTo("error message with arg1 and arg2");21  }22  public void should_be_equal_to_same_error_message_factory() {23    String message = "error message";24    BasicErrorMessageFactory factory = new BasicErrorMessageFactory(message);25    Assertions.assertThat(factory).isEqualTo(factory);26  }27  public void should_be_equal_to_error_message_factory_with_same_message() {28    String message = "error message";29    BasicErrorMessageFactory factory1 = new BasicErrorMessageFactory(message);30    BasicErrorMessageFactory factory2 = new BasicErrorMessageFactory(message);31    Assertions.assertThat(factory1).isEqualTo(factory2);32  }33  public void should_not_be_equal_to_error_message_factory_with_different_message() {34    BasicErrorMessageFactory factory1 = new BasicErrorMessageFactory("error message");35    BasicErrorMessageFactory factory2 = new BasicErrorMessageFactory("other error message");36    Assertions.assertThat(factory1).isNotEqualTo(factory2);37  }38  public void should_not_be_equal_to_null() {39    BasicErrorMessageFactory factory = new BasicErrorMessageFactory("error message");40    Assertions.assertThat(factory).isNotEqualTo(null);41  }

BasicErrorMessageFactory

Using AI Code Generation

1import org.assertj.core.error.BasicErrorMessageFactory;2import java.util.Arrays;3import java.util.List;4import static java.lang.String.format;5import static org.assertj.core.api.Assertions.assertThat;6import static org.assertj.core.error.ShouldContain.shouldContain;7import static org.assertj.core.error.ShouldNotContain.shouldNotContain;8import static org.assertj.core.util.Lists.newArrayList;9import static org.assertj.core.util.Objects.areEqual;10public class BasicErrorMessageFactoryTest {11  public static void main(String args[]) {12    List<String> list = newArrayList("Yoda", "Luke", "Leia");13    assertThat(list).doesNotContain("Han");14    assertThat(list).contains("Han");15  }16  public static ErrorMessageFactory shouldNotContain(Object actual, Object values, ComparisonStrategy comparisonStrategy) {17    return new BasicErrorMessageFactory(shouldNotContain(actual, values, comparisonStrategy).create(), actual, values);18  }19  public static ErrorMessageFactory shouldContain(Object actual, Object values, ComparisonStrategy comparisonStrategy) {20    return new BasicErrorMessageFactory(shouldContain(actual, values, comparisonStrategy).create(), actual, values);21  }22}23  at org.junit.Assert.assertEquals(Assert.java:115)24  at org.junit.Assert.assertEquals(Assert.java:144)25  at org.assertj.core.internal.Failures.failure(Failures.java:78)26  at org.assertj.core.internal.Failures.failure(Failures.java:70)27  at org.assertj.core.internal.Objects.assertEqual(Objects.java:102)28  at org.assertj.core.internal.Objects.assertEqual(Objects.java:91)29  at org.assertj.core.internal.Iterables.assertContains(Iterables.java:180)30  at org.assertj.core.api.AbstractIterableAssert.contains(AbstractIterableAssert.java:222)31  at org.assertj.core.api.AbstractIterableAssert.contains(AbstractIterableAssert.java:213)32  at org.assertj.core.api.AbstractIterableAssert.contains(AbstractIterableAssert.java:39)33  at BasicErrorMessageFactoryTest.main(BasicErrorMessageFactoryTest.java:16)34  at org.junit.Assert.assertEquals(Assert.java:115)35  at org.junit.Assert.assertEquals(Assert.java:144)36  at org.assertj.core.internal.Failures.failure(Failures.java:78)

BasicErrorMessageFactory

Using AI Code Generation

1import org.assertj.core.error.BasicErrorMessageFactory;2import org.assertj.core.error.ErrorMessageFactory;3public class MyErrorMessageFactory extends BasicErrorMessageFactory {4    private static final String SHOULD_CONTAIN = "%nExpecting:%n <%s>%nto contain:%n <%s>%nbut could not find:%n <%s>";5    public static ErrorMessageFactory shouldContain(String actual, String expected, String missing) {6        return new MyErrorMessageFactory(actual, expected, missing);7    }8    private MyErrorMessageFactory(String actual, String expected, String missing) {9        super(SHOULD_CONTAIN, actual, expected, missing);10    }11}12import org.assertj.core.api.AbstractStringAssert;13import org.assertj.core.api.AssertionInfo;14import org.assertj.core.internal.Failures;15import org.assertj.core.internal.Strings;16import org.assertj.core.util.VisibleForTesting;17public class MyStringAssert extends AbstractStringAssert<MyStringAssert> {18    Strings strings = Strings.instance();19    public MyStringAssert(String actual) {20        super(actual, MyStringAssert.class);21    }22    public MyStringAssert contains(String expected, String missing) {23        strings.assertContains(info, actual, expected, missing);24        return myself;25    }26    protected void failWithMessage(String failureMessage) {27        throw Failures.instance().failure(info, MyErrorMessageFactory.shouldContain(actual, expected, missing));28    }29}30import org.assertj.core.api.Assertions;31import org.junit.Test;32public class MyStringAssertTest {33    public void test() {34        Assertions.assertThat("abc").contains("a", "b");35    }36}37import org.assertj.core.api.Assertions;38import org.junit.Test;39public class MyErrorMessageFactoryTest {40    public void test() {41        Assertions.assertThat("abc").contains("a", "b");42    }43}

BasicErrorMessageFactory

Using AI Code Generation

1public void testAssertThatWithCustomErrorMessage() {2    assertThat(5).as("Test failed because of %s", "5 is not equal to 4").isEqualTo(4);3}4public void testAssertThatWithCustomErrorMessage() {5    assertThat(5).as(new BasicErrorMessageFactory("Test failed because of %s", "5 is not equal to 4")).isEqualTo(4);6}7public void testAssertThatWithCustomErrorMessage() {8    assertThat(5).as(new BasicErrorMessageFactory("Test failed because of %s", "5 is not equal to 4")).isEqualTo(4);9}10public void testAssertThatWithCustomErrorMessage() {11    assertThat(5).as(new BasicErrorMessageFactory("Test failed because of %s", "5 is not equal to 4")).isEqualTo(4);12}13public void testAssertThatWithCustomErrorMessage() {14    assertThat(5).as(new BasicErrorMessageFactory("Test failed because of %s", "5 is not equal to 4")).isEqualTo(4);15}16public void testAssertThatWithCustomErrorMessage() {17    assertThat(

BasicErrorMessageFactory

Using AI Code Generation

1public void testAssertThatWithCustomErrorMessage() {2    assertThat(5).as("Test failed because of %s", "5 is not equal to 4").isEqualTo(4);3}4public void testAssertThatWithCustomErrorMessage() {5    assertThat(5).as(new BasicErrorMessageFactory("Test failed because of %s", "5 is not equal to 4")).isEqualTo(4);6}7public void testAssertThatWithCustomErrorMessage() {8    assertThat(5).as(new BasicErrorMessageFactory("Test failed because of %s", "5 is not equal to 4")).isEqualTo(4);9}10public void testAssertThatWithCustomErrorMessage() {11    assertThat(5).as(new BasicErrorMessageFactory("Test failed because of %s", "5 is not equal to 4")).isEqualTo(4);12}13public void testAssertThatWithCustomErrorMessage() {14    assertThat(5).as(new BasicErrorMessageFactory("Test failed because of %s", "5 is not equal to 4")).isEqualTo(4);15}16public void testAssertThatWithCustomErrorMessage() {17    assertThat(lic class BasicErrorMessageFactoryTest {18  public static void main(String args[]) {19    List<String> list = newArrayList("Yoda", "Luke", "Leia");20    assertThat(list).doesNotContain("Han");21    assertThat(list).contains("Han");22  }23  public static ErrorMessageFactory shouldNotContain(Object actual, Object values, ComparisonStrategy comparisonStrategy) {24    return new BasicErrorMessageFactory(shouldNotContain(actual, values, comparisonStrategy).create(), actual, values);25  }26  public static ErrorMessageFactory shouldContain(Object actual, Object values, ComparisonStrategy comparisonStrategy) {27    return new BasicErrorMessageFactory(shouldContain(actual, values, comparisonStrategy).create(), actual, values);28  }29}30  at org.junit.Assert.assertEquals(Assert.java:115)31  at org.junit.Assert.assertEquals(Assert.java:144)32  at org.assertj.core.internal.Failures.failure(Failures.java:78)33  at org.assertj.core.internal.Failures.failure(Failures.java:70)34  at org.assertj.core.internal.Objects.assertEqual(Objects.java:102)35  at org.assertj.core.internal.Objects.assertEqual(Objects.java:91)36  at org.assertj.core.internal.Iterables.assertContains(Iterables.java:180)37  at org.assertj.core.api.AbstractIterableAssert.contains(AbstractIterableAssert.java:222)38  at org.assertj.core.api.AbstractIterableAssert.contains(AbstractIterableAssert.java:213)39  at org.assertj.core.api.AbstractIterableAssert.contains(AbstractIterableAssert.java:39)40  at BasicErrorMessageFactoryTest.main(BasicErrorMessageFactoryTest.java:16)41  at org.junit.Assert.assertEquals(Assert.java:115)42  at org.junit.Assert.assertEquals(Assert.java:144)43  at org.assertj.core.internal.Failures.failure(Failures.java:78)

BasicErrorMessageFactory

Using AI Code Generation

1import org.assertj.core.error.BasicErrorMessageFactory;2import org.assertj.core.error.ErrorMessageFactory;3public class MyErrorMessageFactory extends BasicErrorMessageFactory {4    private static final String SHOULD_CONTAIN = "%nExpecting:%n <%s>%nto contain:%n <%s>%nbut could not find:%n <%s>";5    public static ErrorMessageFactory shouldContain(String actual, String expected, String missing) {6        return new MyErrorMessageFactory(actual, expected, missing);7    }8    private MyErrorMessageFactory(String actual, String expected, String missing) {9        super(SHOULD_CONTAIN, actual, expected, missing);10    }11}12import org.assertj.core.api.AbstractStringAssert;13import org.assertj.core.api.AssertionInfo;14import org.assertj.core.internal.Failures;15import org.assertj.core.internal.Strings;16import org.assertj.core.util.VisibleForTesting;17public class MyStringAssert extends AbstractStringAssert<MyStringAssert> {18    Strings strings = Strings.instance();19    public MyStringAssert(String actual) {20        super(actual, MyStringAssert.class);21    }22    public MyStringAssert contains(String expected, String missing) {23        strings.assertContains(info, actual, expected, missing);24        return myself;25    }26    protected void failWithMessage(String failureMessage) {27        throw Failures.instance().failure(info, MyErrorMessageFactory.shouldContain(actual, expected, missing));28    }29}30import org.assertj.core.api.Assertions;31import org.junit.Test;32public class MyStringAssertTest {33    public void test() {34        Assertions.assertThat("abc").contains("a", "b");35    }36}37import org.assertj.core.api.Assertions;38import org.junit.Test;39public class MyErrorMessageFactoryTest {40    public void test() {41        Assertions.assertThat("abc").contains("a", "b");42    }43}

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