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How to use matches method of org.hamcrest.core.Is class

Best junit code snippet using org.hamcrest.core.Is.matches

Source:CoreMatchers.java

1package org.hamcrest;2@SuppressWarnings("UnusedDeclaration")3public class CoreMatchers {4  /**5   * Creates a matcher that matches if the examined object matches <b>ALL</b> of the specified matchers.6   * For example:7   * <pre>assertThat("myValue", allOf(startsWith("my"), containsString("Val")))</pre>8   */9  public static <T> org.hamcrest.Matcher<T> allOf(java.lang.Iterable<org.hamcrest.Matcher<? super T>> matchers) {10    return org.hamcrest.core.AllOf.<T>allOf(matchers);11  }12  /**13   * Creates a matcher that matches if the examined object matches <b>ALL</b> of the specified matchers.14   * For example:15   * <pre>assertThat("myValue", allOf(startsWith("my"), containsString("Val")))</pre>16   */17  @SafeVarargs18  public static <T> org.hamcrest.Matcher<T> allOf(org.hamcrest.Matcher<? super T>... matchers) {19    return org.hamcrest.core.AllOf.<T>allOf(matchers);20  }21  /**22   * Creates a matcher that matches if the examined object matches <b>ANY</b> of the specified matchers.23   * For example:24   * <pre>assertThat("myValue", anyOf(startsWith("foo"), containsString("Val")))</pre>25   */26  public static <T> org.hamcrest.core.AnyOf<T> anyOf(java.lang.Iterable<org.hamcrest.Matcher<? super T>> matchers) {27    return org.hamcrest.core.AnyOf.<T>anyOf(matchers);28  }29  /**30   * Creates a matcher that matches if the examined object matches <b>ANY</b> of the specified matchers.31   * For example:32   * <pre>assertThat("myValue", anyOf(startsWith("foo"), containsString("Val")))</pre>33   */34  @SafeVarargs35  public static <T> org.hamcrest.core.AnyOf<T> anyOf(org.hamcrest.Matcher<? super T>... matchers) {36    return org.hamcrest.core.AnyOf.<T>anyOf(matchers);37  }38  /**39   * Creates a matcher that matches when both of the specified matchers match the examined object.40   * For example:41   * <pre>assertThat("fab", both(containsString("a")).and(containsString("b")))</pre>42   */43  public static <LHS> org.hamcrest.core.CombinableMatcher.CombinableBothMatcher<LHS> both(org.hamcrest.Matcher<? super LHS> matcher) {44    return org.hamcrest.core.CombinableMatcher.both(matcher);45  }46  /**47   * Creates a matcher that matches when either of the specified matchers match the examined object.48   * For example:49   * <pre>assertThat("fan", either(containsString("a")).or(containsString("b")))</pre>50   */51  public static <LHS> org.hamcrest.core.CombinableMatcher.CombinableEitherMatcher<LHS> either(org.hamcrest.Matcher<? super LHS> matcher) {52    return org.hamcrest.core.CombinableMatcher.either(matcher);53  }54  /**55   * Wraps an existing matcher, overriding its description with that specified.  All other functions are56   * delegated to the decorated matcher, including its mismatch description.57   * For example:58   * <pre>describedAs("a big decimal equal to %0", equalTo(myBigDecimal), myBigDecimal.toPlainString())</pre>59   * 60   * @param description61   *     the new description for the wrapped matcher62   * @param matcher63   *     the matcher to wrap64   * @param values65   *     optional values to insert into the tokenised description66   */67  public static <T> org.hamcrest.Matcher<T> describedAs(java.lang.String description, org.hamcrest.Matcher<T> matcher, java.lang.Object... values) {68    return org.hamcrest.core.DescribedAs.describedAs(description, matcher, values);69  }70  /**71   * Creates a matcher for {@link Iterable}s that only matches when a single pass over the72   * examined {@link Iterable} yields items that are all matched by the specified73   * <code>itemMatcher</code>.74   * For example:75   * <pre>assertThat(Arrays.asList("bar", "baz"), everyItem(startsWith("ba")))</pre>76   * 77   * @param itemMatcher78   *     the matcher to apply to every item provided by the examined {@link Iterable}79   */80  public static <U> org.hamcrest.Matcher<java.lang.Iterable<? extends U>> everyItem(org.hamcrest.Matcher<U> itemMatcher) {81    return org.hamcrest.core.Every.everyItem(itemMatcher);82  }83  /**84   * Decorates another Matcher, retaining its behaviour, but allowing tests85   * to be slightly more expressive.86   * For example:87   * <pre>assertThat(cheese, is(equalTo(smelly)))</pre>88   * instead of:89   * <pre>assertThat(cheese, equalTo(smelly))</pre>90   */91  public static <T> org.hamcrest.Matcher<T> is(org.hamcrest.Matcher<T> matcher) {92    return org.hamcrest.core.Is.is(matcher);93  }94  /**95   * A shortcut to the frequently used <code>is(equalTo(x))</code>.96   * For example:97   * <pre>assertThat(cheese, is(smelly))</pre>98   * instead of:99   * <pre>assertThat(cheese, is(equalTo(smelly)))</pre>100   */101  public static <T> org.hamcrest.Matcher<T> is(T value) {102    return org.hamcrest.core.Is.is(value);103  }104  /**105   * Provided to cause compile time error when used in preference to a possible runtime error if106   * this was not here.107   *108   * <p>This method was removed upstream between Hamcrest 1.1 and 1.3 in favour of the109   * instanceOf(Class) method. Unfortunately, existing usages of it could still compile against the110   * {@link #is(Object)} method instead. Although not every existing usage would compile111   * successfully it is possible that some could and that would result in a change in the runtime112   * behavior that could be difficult to detect and fix. This change aims to turn any significant113   * usage of this method into a compile time error.114   *115   * @deprecated Use instanceOf(SomeClass.class) instead.116   */117  public static void is(java.lang.Class<?> type) {118  }119  /**120   * A shortcut to the frequently used <code>is(instanceOf(SomeClass.class))</code>.121   * For example:122   * <pre>assertThat(cheese, isA(Cheddar.class))</pre>123   * instead of:124   * <pre>assertThat(cheese, is(instanceOf(Cheddar.class)))</pre>125   */126  public static <T> org.hamcrest.Matcher<T> isA(java.lang.Class<T> type) {127    return org.hamcrest.core.Is.isA(type);128  }129  /**130   * Creates a matcher that always matches, regardless of the examined object.131   */132  public static org.hamcrest.Matcher<java.lang.Object> anything() {133    return org.hamcrest.core.IsAnything.anything();134  }135  /**136   * Creates a matcher that always matches, regardless of the examined object, but describes137   * itself with the specified {@link String}.138   * 139   * @param description140   *     a meaningful {@link String} used when describing itself141   */142  public static org.hamcrest.Matcher<java.lang.Object> anything(java.lang.String description) {143    return org.hamcrest.core.IsAnything.anything(description);144  }145  /**146   * Creates a matcher for {@link Iterable}s that only matches when a single pass over the147   * examined {@link Iterable} yields at least one item that is matched by the specified148   * <code>itemMatcher</code>.  Whilst matching, the traversal of the examined {@link Iterable}149   * will stop as soon as a matching item is found.150   * For example:151   * <pre>assertThat(Arrays.asList("foo", "bar"), hasItem(startsWith("ba")))</pre>152   * 153   * @param itemMatcher154   *     the matcher to apply to items provided by the examined {@link Iterable}155   */156  public static <T> org.hamcrest.Matcher<java.lang.Iterable<? super T>> hasItem(org.hamcrest.Matcher<? super T> itemMatcher) {157    return org.hamcrest.core.IsCollectionContaining.<T>hasItem(itemMatcher);158  }159  /**160   * Creates a matcher for {@link Iterable}s that only matches when a single pass over the161   * examined {@link Iterable} yields at least one item that is equal to the specified162   * <code>item</code>.  Whilst matching, the traversal of the examined {@link Iterable}163   * will stop as soon as a matching item is found.164   * For example:165   * <pre>assertThat(Arrays.asList("foo", "bar"), hasItem("bar"))</pre>166   * 167   * @param item168   *     the item to compare against the items provided by the examined {@link Iterable}169   */170  public static <T> org.hamcrest.Matcher<java.lang.Iterable<? super T>> hasItem(T item) {171    return org.hamcrest.core.IsCollectionContaining.<T>hasItem(item);172  }173  /**174   * Creates a matcher for {@link Iterable}s that matches when consecutive passes over the175   * examined {@link Iterable} yield at least one item that is matched by the corresponding176   * matcher from the specified <code>itemMatchers</code>.  Whilst matching, each traversal of177   * the examined {@link Iterable} will stop as soon as a matching item is found.178   * For example:179   * <pre>assertThat(Arrays.asList("foo", "bar", "baz"), hasItems(endsWith("z"), endsWith("o")))</pre>180   * 181   * @param itemMatchers182   *     the matchers to apply to items provided by the examined {@link Iterable}183   */184  @SafeVarargs185  public static <T> org.hamcrest.Matcher<java.lang.Iterable<T>> hasItems(org.hamcrest.Matcher<? super T>... itemMatchers) {186    return org.hamcrest.core.IsCollectionContaining.<T>hasItems(itemMatchers);187  }188  /**189   * Creates a matcher for {@link Iterable}s that matches when consecutive passes over the190   * examined {@link Iterable} yield at least one item that is equal to the corresponding191   * item from the specified <code>items</code>.  Whilst matching, each traversal of the192   * examined {@link Iterable} will stop as soon as a matching item is found.193   * For example:194   * <pre>assertThat(Arrays.asList("foo", "bar", "baz"), hasItems("baz", "foo"))</pre>195   * 196   * @param items197   *     the items to compare against the items provided by the examined {@link Iterable}198   */199  @SafeVarargs200  public static <T> org.hamcrest.Matcher<java.lang.Iterable<T>> hasItems(T... items) {201    return org.hamcrest.core.IsCollectionContaining.<T>hasItems(items);202  }203  /**204   * Creates a matcher that matches when the examined object is logically equal to the specified205   * <code>operand</code>, as determined by calling the {@link java.lang.Object#equals} method on206   * the <b>examined</b> object.207   * 208   * <p>If the specified operand is <code>null</code> then the created matcher will only match if209   * the examined object's <code>equals</code> method returns <code>true</code> when passed a210   * <code>null</code> (which would be a violation of the <code>equals</code> contract), unless the211   * examined object itself is <code>null</code>, in which case the matcher will return a positive212   * match.</p>213   * 214   * <p>The created matcher provides a special behaviour when examining <code>Array</code>s, whereby215   * it will match if both the operand and the examined object are arrays of the same length and216   * contain items that are equal to each other (according to the above rules) <b>in the same217   * indexes</b>.</p> 218   * For example:219   * <pre>220   * assertThat("foo", equalTo("foo"));221   * assertThat(new String[] {"foo", "bar"}, equalTo(new String[] {"foo", "bar"}));222   * </pre>223   */224  public static <T> org.hamcrest.Matcher<T> equalTo(T operand) {225    return org.hamcrest.core.IsEqual.equalTo(operand);226  }227  /**228   * Creates an {@link org.hamcrest.core.IsEqual} matcher that does not enforce the values being229   * compared to be of the same static type.230   */231  public static org.hamcrest.Matcher<java.lang.Object> equalToObject(java.lang.Object operand) {232    return org.hamcrest.core.IsEqual.equalToObject(operand);233  }234  /**235   * Creates a matcher that matches when the examined object is an instance of the specified <code>type</code>,236   * as determined by calling the {@link java.lang.Class#isInstance(Object)} method on that type, passing the237   * the examined object.238   * 239   * <p>The created matcher forces a relationship between specified type and the examined object, and should be240   * used when it is necessary to make generics conform, for example in the JMock clause241   * <code>with(any(Thing.class))</code></p>242   * For example:243   * <pre>assertThat(new Canoe(), instanceOf(Canoe.class));</pre>244   */245  public static <T> org.hamcrest.Matcher<T> any(java.lang.Class<T> type) {246    return org.hamcrest.core.IsInstanceOf.any(type);247  }248  /**249   * Creates a matcher that matches when the examined object is an instance of the specified <code>type</code>,250   * as determined by calling the {@link java.lang.Class#isInstance(Object)} method on that type, passing the251   * the examined object.252   * 253   * <p>The created matcher assumes no relationship between specified type and the examined object.</p>254   * For example:255   * <pre>assertThat(new Canoe(), instanceOf(Paddlable.class));</pre>256   */257  public static <T> org.hamcrest.Matcher<T> instanceOf(java.lang.Class<?> type) {258    return org.hamcrest.core.IsInstanceOf.instanceOf(type);259  }260  /**261   * Creates a matcher that wraps an existing matcher, but inverts the logic by which262   * it will match.263   * For example:264   * <pre>assertThat(cheese, is(not(equalTo(smelly))))</pre>265   * 266   * @param matcher267   *     the matcher whose sense should be inverted268   */269  public static <T> org.hamcrest.Matcher<T> not(org.hamcrest.Matcher<T> matcher) {270    return org.hamcrest.core.IsNot.not(matcher);271  }272  /**273   * A shortcut to the frequently used <code>not(equalTo(x))</code>.274   * For example:275   * <pre>assertThat(cheese, is(not(smelly)))</pre>276   * instead of:277   * <pre>assertThat(cheese, is(not(equalTo(smelly))))</pre>278   * 279   * @param value280   *     the value that any examined object should <b>not</b> equal281   */282  public static <T> org.hamcrest.Matcher<T> not(T value) {283    return org.hamcrest.core.IsNot.not(value);284  }285  /**286   * A shortcut to the frequently used <code>not(nullValue())</code>.287   * For example:288   * <pre>assertThat(cheese, is(notNullValue()))</pre>289   * instead of:290   * <pre>assertThat(cheese, is(not(nullValue())))</pre>291   */292  public static org.hamcrest.Matcher<java.lang.Object> notNullValue() {293    return org.hamcrest.core.IsNull.notNullValue();294  }295  /**296   * A shortcut to the frequently used <code>not(nullValue(X.class)). Accepts a297   * single dummy argument to facilitate type inference.</code>.298   * For example:299   * <pre>assertThat(cheese, is(notNullValue(X.class)))</pre>300   * instead of:301   * <pre>assertThat(cheese, is(not(nullValue(X.class))))</pre>302   * 303   * @param type304   *     dummy parameter used to infer the generic type of the returned matcher305   */306  public static <T> org.hamcrest.Matcher<T> notNullValue(java.lang.Class<T> type) {307    return org.hamcrest.core.IsNull.notNullValue(type);308  }309  /**310   * Creates a matcher that matches if examined object is <code>null</code>.311   * For example:312   * <pre>assertThat(cheese, is(nullValue())</pre>313   */314  public static org.hamcrest.Matcher<java.lang.Object> nullValue() {315    return org.hamcrest.core.IsNull.nullValue();316  }317  /**318   * Creates a matcher that matches if examined object is <code>null</code>. Accepts a319   * single dummy argument to facilitate type inference.320   * For example:321   * <pre>assertThat(cheese, is(nullValue(Cheese.class))</pre>322   * 323   * @param type324   *     dummy parameter used to infer the generic type of the returned matcher325   */326  public static <T> org.hamcrest.Matcher<T> nullValue(java.lang.Class<T> type) {327    return org.hamcrest.core.IsNull.nullValue(type);328  }329  /**330   * Creates a matcher that matches only when the examined object is the same instance as331   * the specified target object.332   * 333   * @param target334   *     the target instance against which others should be assessed335   */336  public static <T> org.hamcrest.Matcher<T> sameInstance(T target) {337    return org.hamcrest.core.IsSame.sameInstance(target);338  }339  /**340   * Creates a matcher that matches only when the examined object is the same instance as341   * the specified target object.342   * 343   * @param target344   *     the target instance against which others should be assessed345   */346  public static <T> org.hamcrest.Matcher<T> theInstance(T target) {347    return org.hamcrest.core.IsSame.theInstance(target);348  }349  /**350   * Creates a matcher that matches if the examined {@link String} contains the specified351   * {@link String} anywhere.352   * For example:353   * <pre>assertThat("myStringOfNote", containsString("ring"))</pre>354   * 355   * @param substring356   *     the substring that the returned matcher will expect to find within any examined string357   */358  public static org.hamcrest.Matcher<java.lang.String> containsString(java.lang.String substring) {359    return org.hamcrest.core.StringContains.containsString(substring);360  }361  /**362   * Creates a matcher that matches if the examined {@link String} contains the specified363   * {@link String} anywhere, ignoring case.364   * For example:365   * <pre>assertThat("myStringOfNote", containsString("ring"))</pre>366   * 367   * @param substring368   *     the substring that the returned matcher will expect to find within any examined string369   */370  public static org.hamcrest.Matcher<java.lang.String> containsStringIgnoringCase(java.lang.String substring) {371    return org.hamcrest.core.StringContains.containsStringIgnoringCase(substring);372  }373  /**374   * <p>375   * Creates a matcher that matches if the examined {@link String} starts with the specified376   * {@link String}.377   * </p>378   * For example:379   * <pre>assertThat("myStringOfNote", startsWith("my"))</pre>380   * 381   * @param prefix382   *      the substring that the returned matcher will expect at the start of any examined string383   */384  public static org.hamcrest.Matcher<java.lang.String> startsWith(java.lang.String prefix) {385    return org.hamcrest.core.StringStartsWith.startsWith(prefix);386  }387  /**388   * <p>389   * Creates a matcher that matches if the examined {@link String} starts with the specified390   * {@link String}, ignoring case391   * </p>392   * For example:393   * <pre>assertThat("myStringOfNote", startsWith("my"))</pre>394   * 395   * @param prefix396   *      the substring that the returned matcher will expect at the start of any examined string397   */398  public static org.hamcrest.Matcher<java.lang.String> startsWithIgnoringCase(java.lang.String prefix) {399    return org.hamcrest.core.StringStartsWith.startsWithIgnoringCase(prefix);400  }401  /**402   * Creates a matcher that matches if the examined {@link String} ends with the specified403   * {@link String}.404   * For example:405   * <pre>assertThat("myStringOfNote", endsWith("Note"))</pre>406   * 407   * @param suffix408   *      the substring that the returned matcher will expect at the end of any examined string409   */410  public static org.hamcrest.Matcher<java.lang.String> endsWith(java.lang.String suffix) {411    return org.hamcrest.core.StringEndsWith.endsWith(suffix);412  }413  /**414   * Creates a matcher that matches if the examined {@link String} ends with the specified415   * {@link String}, ignoring case.416   * For example:417   * <pre>assertThat("myStringOfNote", endsWith("Note"))</pre>418   * 419   * @param suffix420   *      the substring that the returned matcher will expect at the end of any examined string421   */422  public static org.hamcrest.Matcher<java.lang.String> endsWithIgnoringCase(java.lang.String suffix) {423    return org.hamcrest.core.StringEndsWith.endsWithIgnoringCase(suffix);424  }425}...

Source:IsTest.java

...13        assertNullSafe(matcher);14        assertUnknownTypeSafe(matcher);15    }16    @Test public void17    matchesTheSameWayTheUnderlyingMatcherDoes() {18        final Matcher<Boolean> matcher = is(equalTo(true));19        assertMatches(matcher, true);20        assertDoesNotMatch(matcher, false);21    }22    @Test public void23    generatesIsPrefixInDescription() {24        assertDescription("is <true>", is(equalTo(true)));25        assertDescription("is \"A\"", is("A"));26    }27    @Test public void28    providesConvenientShortcutForIsEqualTo() {29        final Matcher<String> matcher = is("A");30        31        assertMatches(matcher, "A");...

matches

Using AI Code Generation

1import org.hamcrest.core.Is2assertThat("Hello World", Is.matches("Hello.*"))3import org.hamcrest.text.MatchesPattern4assertThat("Hello World", MatchesPattern.matchesPattern("Hello.*"))5import static org.hamcrest.Matchers.*6assertThat("Hello World", matchesPattern("Hello.*"))7import static org.hamcrest.MatcherAssert.*8assertThat("Hello World", matchesPattern("Hello.*"))9import static org.junit.Assert.*10assertThat("Hello World", matchesPattern("Hello.*"))11import static org.junit.jupiter.api.Assertions.*12assertThat("Hello World", matchesPattern("Hello.*"))13import static org.testng.Assert.*14assertThat("Hello World", matchesPattern("Hello.*"))15import static org.testng.AssertJUnit.*16assertThat("Hello World", matchesPattern("Hello.*"))

matches

Using AI Code Generation

1import org.hamcrest.core.Is2assertThat "abc",Is.matches(/abc/)3assertThat "abc",Is.matches(/abc/)4import org.hamcrest.core.StringContains5assertThat "abc",StringContains.matchesString(/abc/)6assertThat "abc",StringContains.matchesString(/abc/)7import org.hamcrest.core.StringStartsWith8assertThat "abc",StringStartsWith.startsWith(/abc/)9assertThat "abc",StringStartsWith.startsWith(/abc/)10import org.hamcrest.core.StringEndsWith11assertThat "abc",StringEndsWith.endsWith(/abc/)12assertThat "abc",StringEndsWith.endsWith(/abc/)13import org.hamcrest.core.StringContainsInOrder14assertThat "abc",StringContainsInOrder.stringContainsInOrder(/abc/)15assertThat "abc",StringContainsInOrder.stringContainsInOrder(/abc/)16import org.hamcrest.core.StringContainsInOrder17assertThat "abc",StringContainsInOrder.stringContainsInOrder(/abc/)18assertThat "abc",StringContainsInOrder.stringContainsInOrder(/abc/)19import org.hamcrest.core.StringContainsInOrder20assertThat "abc",StringContainsInOrder.stringContainsInOrder(/abc/)21assertThat "abc",StringContainsInOrder.stringContainsInOrder(/abc/)22import org.hamcrest.core.StringContainsInOrder23assertThat "abc",StringContainsInOrder.stringContainsInOrder(/abc/)24assertThat "abc",StringContainsInOrder.stringContainsInOrder(/abc/)25import org.hamcrest.core.StringContainsInOrder26assertThat "abc",StringContainsInOrder.stringContainsInOrder(/abc/)27assertThat "abc",StringContainsInOrder.stringContainsInOrder(/abc/)28import org.hamcrest.core.StringContainsInOrder29assertThat "abc",StringContainsInOrder.stringContainsInOrder(/

matches

Using AI Code Generation

1import org.hamcrest.core.Is;2import org.junit.Assert;3import org.junit.Test;4public class HamcrestTest {5    public void test() {6        String str = "Hello World";7        Assert.assertThat(str, Is.is(Is.startsWith("Hello")));8    }9}10org.hamcrest.core.Is.is(org.hamcrest.core.StringStartsWith@6f4f6c9a)11import org.hamcrest.core.StringStartsWith;12import org.junit.Assert;13import org.junit.Test;14public class HamcrestTest {15    public void test() {16        String str = "Hello World";17        Assert.assertThat(str, StringStartsWith.startsWith("Hello"));18    }19}20import org.hamcrest.core.StringStartsWith;21import org.junit.Assert;22import org.junit.Test;23public class HamcrestTest {24    public void test() {25        String str = "Hello World";26        Assert.assertThat(str, StringStartsWith.startsWithIgnoringCase("hello"));27    }28}29import org.hamcrest.core.StringStartsWith;30import org.junit.Assert;31import org.junit.Test;32public class HamcrestTest {33    public void test() {34        String str = "Hello World";35        Assert.assertThat(str, StringStartsWith.startsWithIgnoringCase("hello"));36    }37}

matches

Using AI Code Generation

1import static org.hamcrest.core.Is.*;2import static org.hamcrest.MatcherAssert.assertThat;3import org.junit.Test;4public class HamcrestCoreTest {5    public void test() {6        String str = "This is a string";7        assertThat(str, containsString("string"));8    }9}10package com.zetcode;11import static org.hamcrest.core.Is.*;12import static org.hamcrest.MatcherAssert.assertThat;13import org.junit.Test;14public class HamcrestStringMatchersTest {15    public void test() {16        String str = "This is a string";17        assertThat(str, containsString("string"));18        assertThat(str, endsWith("string"));19        assertThat(str, startsWith("This"));20    }21}22Number matchers Description closeTo(double num, double error) Checks if the number is close to the given value. greaterThan(Number num) Checks if the number is greater than the given value. greaterThanOrEqualTo(Number num) Checks if the number is greater than or equal to the given value. lessThan(Number num) Checks if the number is less than the given value. lessThanOrEqualTo(Number num) Checks if the number is less than or equal to

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