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How to use describeTo method of org.hamcrest.Interface SelfDescribing class

Best junit code snippet using org.hamcrest.Interface SelfDescribing.describeTo

Source:SimpleDescription.java

...43        stringBuilder.append(s);44        return this;45    }46    public Description appendDescriptionOf(SelfDescribing selfDescribing) {47        selfDescribing.describeTo(this);48        return this;49    }50    public Description appendValue(Object o) {51        String value;52        try {53            value = String.valueOf(o);54        } catch (Throwable e) {55            value = String.format("%s@%x", o.getClass().getName(), System.identityHashCode(o));56        }57        stringBuilder.append(value);58        return this;59    }60    public <T> Description appendValueList(String start, String separator, String end, T... values) {61        return appendValueList(start, separator, end, values != null ? Arrays.asList(values) : Collections.emptyList());62    }63    public <T> Description appendValueList(String start, String separator, String end, Iterable<T> values) {64        stringBuilder.append(start);65        boolean first = true;66        for (T value : values) {67            if (!first) {68                stringBuilder.append(separator);69            }70            first = false;71            appendValue(value);72        }73        stringBuilder.append(end);74        return this;75    }76    public Description appendList(String start, String separator, String end, Iterable<? extends SelfDescribing> values) {77        stringBuilder.append(start);78        boolean first = true;79        for (SelfDescribing value : values) {80            if (!first) {81                stringBuilder.append(separator);82            }83            first = false;84            value.describeTo(this);85        }86        stringBuilder.append(end);87        return this;88    }89    /**90     * Returns the description built up from calls to this object so far.91     * @return the description92     */93    @Override94    public String toString() {95        return stringBuilder.toString();96    }97    /**98     * Renders the description of a {@link SelfDescribing} to a {@link String}....

Source:ClassUnlockableMatcher.java

...13	public static ClassUnlockableMatcher canBeTreatedAs(Class<?> interfaceClazz) {14		return new ClassUnlockableMatcher(interfaceClazz);15	}16	@Override17	public void describeTo(Description description) {18		description.appendText(" can unlock features of class ").appendValue(interfaceClazz.getSimpleName());19	}20	@Override21	protected void describeMismatchSafely(Class<?> item, Description mismatchDescription) {22		List<Method> conflicts = XRayInterface.xray(item).unMappable(interfaceClazz);23		if (!conflicts.isEmpty()) {24			mismatchDescription25			.appendText("cannot find following members in ")26			.appendValue(item.getSimpleName())27			.appendText(": ")28			.appendList("\n", "\n", "", describe(conflicts));29		}30	}31	private List<SelfDescribing> describe(List<Method> conflicts) {32		List<SelfDescribing> descriptions = new ArrayList<SelfDescribing>(conflicts.size());33		for (Method conflict : conflicts) {34			StringBuilder buffer = new StringBuilder();35			buffer.append(conflict.getReturnType().getSimpleName());36			buffer.append(' ');37			buffer.append(conflict.getName());38			buffer.append('(');39			Class<?>[] parameterTypes = conflict.getParameterTypes();40			if (parameterTypes.length > 0) {41				buffer.append(parameterTypes[0].getSimpleName());42			}43			for (int i = 1; i < parameterTypes.length; i++) {44				buffer.append(", ");45				buffer.append(parameterTypes[i].getSimpleName());46			}47			buffer.append(')');48			Class<?>[] exceptionTypes = conflict.getExceptionTypes();49			if (exceptionTypes.length > 0) {50				buffer.append(" throws ");51				buffer.append(exceptionTypes[0].getSimpleName());52				for (int i = 1; i < exceptionTypes.length; i++) {53					buffer.append(", ");54					buffer.append(exceptionTypes[i].getSimpleName());55				}56			}57			descriptions.add(new Signature(buffer.toString()));58		}59		return descriptions ;60	}61	@Override62	protected boolean matchesSafely(Class<?> item) {63		return XRayInterface.xray(item).unMappable(interfaceClazz).isEmpty();64	}65	private final class Signature implements SelfDescribing {66		private final String signature;67		private Signature(String signature) {68			this.signature = signature;69		}70		@Override71		public void describeTo(Description description) {72			description.appendText(signature);					73		}74	}75}...

Source:MatchDescriptorBuilder.java

...6import static ru.serge2nd.test.match.MatchAssist.descriptor;7import static ru.serge2nd.test.match.MatchAssist.idDescriptor;8import static ru.serge2nd.test.match.MatchAssist.listDescriptors;9/**10 * A mixin for {@link Matcher} builders to build the description of the matcher (picked by {@link Matcher#describeTo(Description) describeTo()}).11 * @param <Builder> the matcher builder actual type12 */13public interface MatchDescriptorBuilder<Builder extends MatchDescriptorBuilder<? super Builder>> {14    /** Appends the given descriptor to the end. */15    Builder describe(SelfDescribing sd);16    /** Appends the given descriptor to the start. */17    Builder describeFirst(SelfDescribing sd);18    default Builder describe(String prefix, Iterable<? extends SelfDescribing> sds)      { return describe(listDescriptors(prefix, sds)); }19    default Builder describeFirst(String prefix, Iterable<? extends SelfDescribing> sds) { return describeFirst(listDescriptors(prefix, sds)); }20    default Builder append(String text)                  { return describe(d -> d.appendText(text)); }21    default Builder append(String text, int $)           { return describeFirst(d -> d.appendText(text)); }22    default Builder append(Supplier<String> text)        { return describe(d -> d.appendText(text.get())); }23    default Builder append(Supplier<String> text, int $) { return describeFirst(d -> d.appendText(text.get())); }24    default Builder append(Object val)                   { return describe(descriptor(val)); }...

Source:XRayMatcher.java

...14	public static XRayMatcher providesFeaturesOf(Class<?> interfaceClazz) {15		return new XRayMatcher(interfaceClazz);16	}17	@Override18	public void describeTo(Description description) {19		description.appendText("can unlock features of ").appendValue(interfaceClazz);20	}21	@Override22	protected void describeMismatchSafely(Class<?> item, Description mismatchDescription) {23		List<Method> conflicts = XRayInterface.xray(item).unMappable(interfaceClazz);24		if (!conflicts.isEmpty()) {25			mismatchDescription26				.appendText("cannot map following members in ")27				.appendValue(item)28				.appendText(": ")29				.appendList("\n", "\n", "", describe(conflicts));30		}31	}32	private List<SelfDescribing> describe(List<Method> conflicts) {33		List<SelfDescribing> descriptions = new ArrayList<SelfDescribing>(conflicts.size());34		for (Method conflict : conflicts) {35			descriptions.add(new Signature(methodSignature(conflict.getName(), conflict.getReturnType(), conflict.getParameterTypes(), conflict.getExceptionTypes())));36		}37		return descriptions;38	}39	@Override40	protected boolean matchesSafely(Class<?> item) {41		return XRayInterface.xray(item).unMappable(interfaceClazz).isEmpty();42	}43	private final class Signature implements SelfDescribing {44		private final String signature;45		private Signature(String signature) {46			this.signature = signature;47		}48		@Override49		public void describeTo(Description description) {50			description.appendText(signature);51		}52	}53}...

Source:Description.java

...3/**4 * A description of a Matcher. A Matcher will describe itself to a description5 * which can later be used for reporting.6 *7 * @see Matcher#describeTo(Description)8 */9public interface Description {1011    /**12     * Appends some plain text to the description.13     */14    Description appendText(String text);15    16    /**17     * Appends the description of a {@link SelfDescribing} value to this description.18     */19    Description appendDescriptionOf(SelfDescribing value);20    21    /**
...

Source:SelfDescribing.java

1package org.hamcrest;23public abstract interface SelfDescribing4{5  public abstract void describeTo(Description paramDescription);6}78
9/* Location:           G:\ParasiteTrade\Parasite_20150226.jar
10 * Qualified Name:     org.hamcrest.SelfDescribing
11 * JD-Core Version:    0.7.0.1

...

describeTo

Using AI Code Generation

1import org.hamcrest.Description2import org.hamcrest.Matcher3import org.hamcrest.TypeSafeMatcher4class CustomMatcher<T>(private val expected: T) : TypeSafeMatcher<T>() {5    override fun describeTo(description: Description) {6        description.appendText("value should be $expected")7    }8    override fun matchesSafely(actual: T) = actual == expected9}10fun <T> isEqualTo(expected: T): Matcher<T> = CustomMatcher(expected)11import org.junit.Assert.assertThat12import org.junit.Test13class CustomMatcherTest {14    fun `should match`() {15        assertThat(1, isEqualTo(1))16    }17}18import org.hamcrest.Description19import org.hamcrest.Matcher20import org.hamcrest.TypeSafeMatcher21class CustomMatcher<T>(private val expected: T) : TypeSafeMatcher<T>() {22    override fun describeTo(description: Description) {23        description.appendText("value should be $expected")24    }25    override fun matchesSafely(actual: T) = actual == expected26    override fun describeMismatchSafely(actual: T, mismatchDescription: Description) {27        mismatchDescription.appendText("value should be $actual")28    }29}30fun <T> isEqualTo(expected: T): Matcher<T> = CustomMatcher(expected)31import org.junit.Assert.assertThat32import org.junit.Test33class CustomMatcherTest {34    fun `should match`() {35        assertThat(1, isEqualTo(1))36    }37}38import org.hamcrest.Description39import org.hamcrest.Matcher40import org.hamcrest.SelfDescribing41import org.hamcrest.TypeSafeMatcher42class CustomMatcher<T>(private val expected: T) : TypeSafeMatcher<T>() {43    override fun describeTo(description: Description) {44        description.appendText("value should be $expected")45    }46    override fun matchesSafely(actual: T) = actual == expected47    override fun describeMismatch(item: Any, mismatchDescription: Description) {48        mismatchDescription.appendText("value should be $item")

describeTo

Using AI Code Generation

1import org.hamcrest.Description2import org.hamcrest.Matcher3import org.hamcrest.TypeSafeDiagnosingMatcher4import org.junit.Assert.assertThat5import org.junit.Test6class Person(val name: String, val age: Int)7class PersonMatcher(private val matcher: Matcher<Person>) : TypeSafeDiagnosingMatcher<Person>() {8    override fun matchesSafely(item: Person, mismatchDescription: Description): Boolean {9        return matcher.matches(item)10    }11    override fun describeTo(description: Description) {12        matcher.describeTo(description)13    }14}15fun hasName(name: String) = object : TypeSafeDiagnosingMatcher<Person>() {16    override fun matchesSafely(item: Person, mismatchDescription: Description): Boolean {17        if (item.name == name) {18        } else {19            mismatchDescription.appendText("was ${item.name}")20        }21    }22    override fun describeTo(description: Description) {23        description.appendText("has name $name")24    }25}26fun hasAge(age: Int) = object : TypeSafeDiagnosingMatcher<Person>() {27    override fun matchesSafely(item: Person, mismatchDescription: Description): Boolean {28        if (item.age == age) {29        } else {30            mismatchDescription.appendText("was ${item.age}")31        }32    }33    override fun describeTo(description: Description) {34        description.appendText("has age $age")35    }36}37fun hasNameAndAge(name: String, age: Int) = PersonMatcher(hasName(name).and(hasAge(age)))38class PersonMatcherTest {39    fun `test hasName`() {40        val person = Person("John", 20)41        assertThat(person, hasName("John"))42    }43    fun `test hasAge`() {44        val person = Person("John", 20)45        assertThat(person, hasAge(20))46    }47    fun `test hasNameAndAge`() {48        val person = Person("John", 20)49        assertThat(person, hasNameAndAge("John", 20))50    }51}

describeTo

Using AI Code Generation

1import org.hamcrest.Description2import org.hamcrest.Matcher3import org.hamcrest.TypeSafeMatcher4class IsEmptyString: TypeSafeMatcher<String>() {5    override fun matchesSafely(item: String?): Boolean {6    }7    override fun describeTo(description: Description?) {8        description?.appendText("an empty string")9    }10}11fun isEmptyString(): Matcher<String> {12    return IsEmptyString()13}14import org.hamcrest.Description15import org.hamcrest.Matcher16import org.hamcrest.TypeSafeMatcher17class IsEmptyString: TypeSafeMatcher<String>() {18    override fun matchesSafely(item: String?): Boolean {19    }20    override fun describeTo(description: Description?) {21        description?.appendText("an empty string")22    }23}24fun isEmptyString(): Matcher<String> {25    return IsEmptyString()26}27import org.hamcrest.Description28import org.hamcrest.Matcher29import org.hamcrest.TypeSafeMatcher30class IsEmptyString: TypeSafeMatcher<String>() {31    override fun matchesSafely(item: String?): Boolean {32    }33    override fun describeTo(description: Description?) {34        description?.appendText("an empty string")35    }36    override fun describeMismatchSafely(item: String?, mismatchDescription: Description?) {37        mismatchDescription?.appendText("was \"${item}\"")38    }39}40fun isEmptyString(): Matcher<String> {41    return IsEmptyString()42}43import org.hamcrest.Description44import org.hamcrest.Matcher45import org.hamcrest.TypeSafeMatcher46class IsEmptyString: TypeSafeMatcher<String>() {47    override fun matchesSafely(item: String?): Boolean {48    }49    override fun describeTo(description: Description?) {50        description?.appendText("an empty string")51    }52    override fun describeMismatchSafely(item: String?, mismatchDescription: Description?) {53        mismatchDescription?.appendText("was \"${item}\"")54    }55}56fun isEmptyString(): Matcher<String> {57    return IsEmptyString()58}59import org.hamcrest.Description60import org.hamcrest.Matcher61import org

describeTo

Using AI Code Generation

1def "test description of matcher"(){2    matcher.describeTo(description)3    description.toString() == expectedDescription4    matcher << [greaterThan(1), lessThan(5), between(1,5)]5}6def "test description of mismatch"(){7    matcher.describeMismatch(item, description)8    description.toString() == expectedDescription9    matcher << [greaterThan(1), lessThan(5), between(1,5)]10}11def "test description of mismatch safely"(){12    matcher.describeMismatchSafely(item, description)13    description.toString() == expectedDescription14    matcher << [greaterThan(1), lessThan(5), between(1,5)]

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