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How to use matches method of org.hamcrest.TypeSafeMatcher class

Best junit code snippet using org.hamcrest.TypeSafeMatcher.matches

Source:IsisMatchers.java

...26    public static Matcher<String> containsStripNewLines(final String expected) {27        final String strippedExpected = StringExtensions.stripNewLines(expected);28        return new StringContains(strippedExpected) {29            @Override30            public boolean matchesSafely(final String actual) {31                return super.matchesSafely(StringExtensions.stripNewLines(actual));32            }33            @Override34            public void describeTo(final Description description) {35                description.appendText("a string (ignoring new lines) containing").appendValue(strippedExpected);36            }37        };38    }39    @Factory40    public static Matcher<String> equalToStripNewLines(final String expected) {41        final String strippedExpected = StringExtensions.stripNewLines(expected);42        return new IsEqual<String>(strippedExpected) {43            @Override44            public boolean matches(final Object actualObj) {45                final String actual = (String) actualObj;46                return super.matches(StringExtensions.stripNewLines(actual));47            }48            @Override49            public void describeTo(final Description description) {50                description.appendText("a string (ignoring new lines) equal to").appendValue(strippedExpected);51            }52        };53    }54    @Factory55    public static StringStartsWith startsWithStripNewLines(final String expected) {56        final String strippedExpected = StringExtensions.stripNewLines(expected);57        return new StringStartsWith(strippedExpected) {58            @Override59            public boolean matchesSafely(final String actual) {60                return super.matchesSafely(StringExtensions.stripNewLines(actual));61            }62            @Override63            public void describeTo(final Description description) {64                description.appendText("a string (ignoring new lines) starting with").appendValue(strippedExpected);65            }66        };67    }68    @Factory69    public static Matcher<String> endsWithStripNewLines(final String expected) {70        final String strippedExpected = StringExtensions.stripNewLines(expected);71        return new StringEndsWith(strippedExpected) {72            @Override73            public boolean matchesSafely(final String actual) {74                return super.matchesSafely(StringExtensions.stripNewLines(actual));75            }76            @Override77            public void describeTo(final Description description) {78                description.appendText("a string (ignoring new lines) ending with").appendValue(strippedExpected);79            }80        };81    }82    @Factory83    public static <T> Matcher<T> anInstanceOf(final Class<T> expected) {84        return new TypeSafeMatcher<T>() {85            @Override86            public boolean matchesSafely(final T actual) {87                return expected.isAssignableFrom(actual.getClass());88            }89            @Override90            public void describeTo(final Description description) {91                description.appendText("an instance of ").appendValue(expected);92            }93        };94    }95    @Factory96    public static Matcher<String> nonEmptyString() {97        return new TypeSafeMatcher<String>() {98            @Override99            public boolean matchesSafely(final String str) {100                return str != null && str.length() > 0;101            }102            @Override103            public void describeTo(final Description description) {104                description.appendText("a non empty string");105            }106        };107    }108    @Factory109    @SuppressWarnings("unchecked")110    public static Matcher<String> nonEmptyStringOrNull() {111        return CoreMatchers.anyOf(nullValue(String.class), nonEmptyString());112    }113    @Factory114    public static Matcher<List<?>> containsElementThat(final Matcher<?> elementMatcher) {115        return new TypeSafeMatcher<List<?>>() {116            @Override117            public boolean matchesSafely(final List<?> list) {118                for (final Object o : list) {119                    if (elementMatcher.matches(o)) {120                        return true;121                    }122                }123                return false;124            }125            @Override126            public void describeTo(final Description description) {127                description.appendText("contains element that ").appendDescriptionOf(elementMatcher);128            }129        };130    }131    @Factory132    public static <T extends Comparable<T>> Matcher<T> greaterThan(final T c) {133        return Matchers.greaterThan(c);134    }135    @Factory136    public static Matcher<Class<?>> classEqualTo(final Class<?> operand) {137        class ClassEqualsMatcher extends TypeSafeMatcher<Class<?>> {138            private final Class<?> clazz;139            public ClassEqualsMatcher(final Class<?> clazz) {140                this.clazz = clazz;141            }142            @Override143            public boolean matchesSafely(final Class<?> arg) {144                return clazz == arg;145            }146            @Override147            public void describeTo(final Description description) {148                description.appendValue(clazz);149            }150        }151        return new ClassEqualsMatcher(operand);152    }153    @Factory154    public static Matcher<File> existsAndNotEmpty() {155        return new TypeSafeMatcher<File>() {156            @Override157            public void describeTo(final Description arg0) {158                arg0.appendText("exists and is not empty");159            }160            @Override161            public boolean matchesSafely(final File f) {162                return f.exists() && f.length() > 0;163            }164        };165    }166    @Factory167    public static Matcher<String> matches(final String regex) {168        return new TypeSafeMatcher<String>() {169            @Override170            public void describeTo(final Description description) {171                description.appendText("string matching " + regex);172            }173            @Override174            public boolean matchesSafely(final String str) {175                return str.matches(regex);176            }177        };178    }179    @Factory180    public static <X> Matcher<Class<X>> anySubclassOf(final Class<X> cls) {181        return new TypeSafeMatcher<Class<X>>() {182            @Override183            public void describeTo(final Description arg0) {184                arg0.appendText("is subclass of ").appendText(cls.getName());185            }186            @Override187            public boolean matchesSafely(final Class<X> item) {188                return cls.isAssignableFrom(item);189            }190        };191    }192    @Factory193    public static <T> Matcher<List<T>> sameContentsAs(final List<T> expected) {194        return new TypeSafeMatcher<List<T>>() {195            @Override196            public void describeTo(final Description description) {197                description.appendText("same sequence as " + expected);198            }199            @Override200            public boolean matchesSafely(final List<T> actual) {201                return actual.containsAll(expected) && expected.containsAll(actual);202            }203        };204    }205    @Factory206    public static <T> Matcher<List<T>> listContaining(final T t) {207        return new TypeSafeMatcher<List<T>>() {208    209            @Override210            public void describeTo(Description arg0) {211                arg0.appendText("list containing ").appendValue(t);212            }213    214            @Override215            public boolean matchesSafely(List<T> arg0) {216                return arg0.contains(t);217            }218        };219    }220    @Factory221    public static <T> Matcher<List<T>> listContainingAll(final T... items) {222        return new TypeSafeMatcher<List<T>>() {223            @Override224            public void describeTo(Description arg0) {225                arg0.appendText("has items ").appendValue(items);226                227            }228            @Override229            public boolean matchesSafely(List<T> arg0) {230                return arg0.containsAll(Arrays.asList(items));231            }232        };233    }234    @Factory235    public static Matcher<List<Object>> containsObjectOfType(final Class<?> cls) {236        return new TypeSafeMatcher<List<Object>>() {237            @Override238            public void describeTo(final Description desc) {239                desc.appendText("contains instance of type " + cls.getName());240            }241            @Override242            public boolean matchesSafely(final List<Object> items) {243                for (final Object object : items) {244                    if (cls.isAssignableFrom(object.getClass())) {245                        return true;246                    }247                }248                return false;249            }250        };251    }252    @Factory253    public static Matcher<String> startsWith(final String expected) {254        return new TypeSafeMatcher<String>() {255            @Override256            public void describeTo(Description description) {257                description.appendText(" starts with '" + expected + "'");258            }259            @Override260            public boolean matchesSafely(String actual) {261                return actual.startsWith(expected);262            }263        };264    }265    @Factory266    public static Matcher<String> contains(final String expected) {267        return new TypeSafeMatcher<String>() {268            @Override269            public void describeTo(Description description) {270                description.appendText(" contains '" + expected + "'");271            }272            @Override273            public boolean matchesSafely(String actual) {274                return actual.contains(expected);275            }276        };277    }278    279    @Factory280    public static Matcher<File> equalsFile(final File file) throws IOException {281        final String canonicalPath = file.getCanonicalPath();282        return new TypeSafeMatcher<File>() {283            @Override284            public void describeTo(Description arg0) {285                arg0.appendText("file '" + canonicalPath + "'");286            }287            @Override288            public boolean matchesSafely(File arg0) {289                try {290                    return arg0.getCanonicalPath().equals(canonicalPath);291                } catch (IOException e) {292                    return false;293                }294            }295        };296    }297}...

Source:NofMatchers.java

...29    public static Matcher<String> containsStripNewLines(final String expected) {30        final String strippedExpected = StringUtils.stripNewLines(expected);31        return new StringContains(strippedExpected) {32            @Override33            public boolean matchesSafely(final String actual) {34                return super.matchesSafely(StringUtils.stripNewLines(actual));35            }3637            @Override38            public void describeTo(final Description description) {39                description.appendText("a string (ignoring new lines) containing").appendValue(strippedExpected);40            }41        };42    }4344    @Factory45    public static Matcher<String> equalToStripNewLines(final String expected) {46        final String strippedExpected = StringUtils.stripNewLines(expected);47        return new IsEqual<String>(strippedExpected) {48            @Override49            public boolean matches(final Object actualObj) {50                final String actual = (String) actualObj;51                return super.matches(StringUtils.stripNewLines(actual));52            }5354            @Override55            public void describeTo(final Description description) {56                description.appendText("a string (ignoring new lines) equal to").appendValue(strippedExpected);57            }58        };59    }6061    @Factory62    public static Matcher<String> startsWithStripNewLines(final String expected) {63        final String strippedExpected = StringUtils.stripNewLines(expected);64        return new StringStartsWith(strippedExpected) {65            @Override66            public boolean matchesSafely(final String actual) {67                return super.matchesSafely(StringUtils.stripNewLines(actual));68            }6970            @Override71            public void describeTo(final Description description) {72                description.appendText("a string (ignoring new lines) starting with").appendValue(strippedExpected);73            }74        };75    }7677    @Factory78    public static Matcher<String> endsWithStripNewLines(final String expected) {79        final String strippedExpected = StringUtils.stripNewLines(expected);80        return new StringEndsWith(strippedExpected) {81            @Override82            public boolean matchesSafely(final String actual) {83                return super.matchesSafely(StringUtils.stripNewLines(actual));84            }8586            @Override87            public void describeTo(final Description description) {88                description.appendText("a string (ignoring new lines) ending with").appendValue(strippedExpected);89            }90        };91    }9293    public static <T> Matcher<T> anInstanceOf(final Class<T> expected) {94        return new TypeSafeMatcher<T>() {95            @Override96            public boolean matchesSafely(final T actual) {97                return expected.isAssignableFrom(actual.getClass());98            }99100            public void describeTo(final Description description) {101                description.appendText("an instance of ").appendValue(expected);102            }103        };104    }105106    @Factory107    public static Matcher<String> nonEmptyString() {108        return new TypeSafeMatcher<String>() {109            @Override110            public boolean matchesSafely(String str) {111                return str != null && str.length() > 0;112            }113114            public void describeTo(Description description) {115                description.appendText("a non empty string");116            }117            118        };119    }120121    @Factory122    @SuppressWarnings("unchecked")123    public static Matcher<String> nonEmptyStringOrNull() {124        return CoreMatchers.anyOf(nullValue(String.class), nonEmptyString());125    }126127    128    public static Matcher<List<?>> containsElementThat(final Matcher<?> elementMatcher) {129        return new TypeSafeMatcher<List<?>>() {130            public boolean matchesSafely(List<?> list) {131                for(Object o: list) {132                    if (elementMatcher.matches(o)) {133                        return true;134                    }135                }136                return false;137            }138139            public void describeTo(Description description) {140                description.appendText("contains element that ").appendDescriptionOf(elementMatcher);141            }142        };143    }144145146    @Factory147    public static <T extends Comparable<T>> Matcher<T> greaterThan(T c) {148        return new IsGreaterThan<T>(c);149    }150151152    @Factory153    public static Matcher<Class<?>> classEqualTo(final Class<?> operand) {154155        class ClassEqualsMatcher extends TypeSafeMatcher<Class<?>> {156            private final Class<?> clazz;157            public ClassEqualsMatcher(final Class<?> clazz) {158                this.clazz = clazz;159            }160161            @Override162            public boolean matchesSafely(final Class<?> arg) {163                return clazz == arg;164            }165166            public void describeTo(final Description description) {167                description.appendValue(clazz);168            }169        }170171        return new ClassEqualsMatcher(operand);172    }173    174}
...

Source:FileMatchers.java

...15public class FileMatchers {16    public static Matcher<File> isDirectory() {17        return new TypeSafeMatcher<File>() {18            File fileTested;19            public boolean matchesSafely(File item) {20                fileTested = item;21                return item.isDirectory();22            }23            public void describeTo(Description description) {24                description.appendText(" that ");25                description.appendValue(fileTested);26                description.appendText("is a directory");27            }28        };29    }30    public static Matcher<File> exists() {31        return new TypeSafeMatcher<File>() {32            File fileTested;33            public boolean matchesSafely(File item) {34                fileTested = item;35                return item.exists();36            }37            public void describeTo(Description description) {38                description.appendText(" that file ");39                description.appendValue(fileTested);40                description.appendText(" exists");41            }42        };43    }44    public static Matcher<File> isFile() {45        return new TypeSafeMatcher<File>() {46            File fileTested;47            public boolean matchesSafely(File item) {48                fileTested = item;49                return item.isFile();50            }51            public void describeTo(Description description) {52                description.appendText(" that ");53                description.appendValue(fileTested);54                description.appendText("is a file");55            }56        };57    }58    public static Matcher<File> readable() {59        return new TypeSafeMatcher<File>() {60            File fileTested;61            public boolean matchesSafely(File item) {62                fileTested = item;63                return item.canRead();64            }65            public void describeTo(Description description) {66                description.appendText(" that file ");67                description.appendValue(fileTested);68                description.appendText("is readable");69            }70        };71    }72    public static Matcher<File> writable() {73        return new TypeSafeMatcher<File>() {74            File fileTested;75            public boolean matchesSafely(File item) {76                fileTested = item;77                return item.canWrite();78            }79            public void describeTo(Description description) {80                description.appendText(" that file ");81                description.appendValue(fileTested);82                description.appendText("is writable");83            }84        };85    }86    public static Matcher<File> sized(long size) {87        return sized(Matchers.equalTo(size));88    }89    public static Matcher<File> sized(final Matcher<Long> size) {90        return new TypeSafeMatcher<File>() {91            File fileTested;92            long length;93            public boolean matchesSafely(File item) {94                fileTested = item;95                length = item.length();96                return size.matches(length);97            }98            public void describeTo(Description description) {99                description.appendText(" that file ");100                description.appendValue(fileTested);101                description.appendText(" is sized ");102                description.appendDescriptionOf(size);103                description.appendText(", not " + length);104            }105        };106    }107    public static Matcher<File> named(final Matcher<String> name) {108        return new TypeSafeMatcher<File>() {109            File fileTested;110            public boolean matchesSafely(File item) {111                fileTested = item;112                return name.matches(item.getName());113            }114            public void describeTo(Description description) {115                description.appendText(" that file ");116                description.appendValue(fileTested);117                description.appendText(" is named");118                description.appendDescriptionOf(name);119                description.appendText(" not ");120                description.appendValue(fileTested.getName());121            }122        };123    }124    public static Matcher<File> withCanonicalPath(final Matcher<String> path) {125        return new TypeSafeMatcher<File>() {126            public boolean matchesSafely(File item) {127                try {128                    return path.matches(item.getCanonicalPath());129                } catch (IOException e) {130                    return false;131                }132            }133            public void describeTo(Description description) {134                description.appendText("with canonical path '");135                description.appendDescriptionOf(path);136                description.appendText("'");137            }138        };139    }140    public static Matcher<File> withAbsolutePath(final Matcher<String> path) {141        return new TypeSafeMatcher<File>() {142            File fileTested;143            public boolean matchesSafely(File item) {144                fileTested = item;145                return path.matches(item.getAbsolutePath());146            }147            public void describeTo(Description description) {148                description.appendText("with absolute path '");149                description.appendDescriptionOf(path);150                description.appendText("'");151            }152        };153    }154}...

Source:IndexMatchers.java

...26    public static Matcher<Index> isNamed() {27        final Matcher<String> notEmptyString = CoreMatchers.not(isEmptyOrNullString());28        return new TypeSafeMatcher<Index>() {29            @Override30            public boolean matchesSafely(Index index) {31                return notEmptyString.matches(index.getIndexName());32            }33            @Override34            public void describeTo(Description description) {35                description.appendText("indexName should be ");36                notEmptyString.describeTo(description);37            }38            @Override39            public void describeMismatchSafely(Index index, Description description) {40                notEmptyString.describeMismatch(index.getIndexName(), description);41            }42        };43    }44    public static Matcher<Index> hasName(final String indexName) {45        return new TypeSafeMatcher<Index>() {46            @Override47            public boolean matchesSafely(Index index) {48                return Objects.equals(indexName, index.getIndexName());49            }50            @Override51            public void describeTo(Description description) {52                description.appendText("indexName should be ").appendValue(indexName);53            }54            @Override55            public void describeMismatchSafely(Index index, Description description) {56                description.appendText("was ").appendValue(index.getIndexName());57            }58        };59    }60    public static Matcher<Index> hasTable(final String tableName) {61        return new TypeSafeMatcher<Index>() {62            @Override63            public boolean matchesSafely(Index index) {64                return Objects.equals(tableName, index.getTableName());65            }66            @Override67            public void describeTo(Description description) {68                description.appendText("tableName should be ").appendValue(tableName);69            }70            @Override71            public void describeMismatchSafely(Index index, Description description) {72                description.appendText("was ").appendValue(index.getTableName());73            }74        };75    }76    public static Matcher<Index> hasFieldsInOrder(final List<String> fieldNames) {77        final Matcher<Iterable<? extends String>> contains = contains(fieldNames.toArray(new String[fieldNames.size()]));78        return new TypeSafeMatcher<Index>() {79            @Override80            public boolean matchesSafely(Index index) {81                return contains.matches(index.getFieldNames());82            }83            @Override84            public void describeTo(Description description) {85                description.appendText("fieldNames should be an ");86                contains.describeTo(description);87            }88            @Override89            public void describeMismatchSafely(Index index, Description description) {90                contains.describeMismatch(index.getFieldNames(), description);91            }92        };93    }94}...

Source:StacktracePrintingMatcher.java

...21        describeMismatchSafely((Throwable) ((Throwable) obj), description);22    }23    /* access modifiers changed from: protected */24    @Override // org.hamcrest.TypeSafeMatcher25    public /* bridge */ /* synthetic */ boolean matchesSafely(Object obj) {26        return matchesSafely((Throwable) ((Throwable) obj));27    }28    public StacktracePrintingMatcher(Matcher<T> throwableMatcher2) {29        this.throwableMatcher = throwableMatcher2;30    }31    @Override // org.hamcrest.SelfDescribing32    public void describeTo(Description description) {33        this.throwableMatcher.describeTo(description);34    }35    /* access modifiers changed from: protected */36    public boolean matchesSafely(T item) {37        return this.throwableMatcher.matches(item);38    }39    /* access modifiers changed from: protected */40    public void describeMismatchSafely(T item, Description description) {41        this.throwableMatcher.describeMismatch(item, description);42        description.appendText("\nStacktrace was: ");43        description.appendText(readStacktrace(item));44    }45    private String readStacktrace(Throwable throwable) {46        StringWriter stringWriter = new StringWriter();47        throwable.printStackTrace(new PrintWriter(stringWriter));48        return stringWriter.toString();49    }50    @Factory51    public static <T extends Throwable> Matcher<T> isThrowable(Matcher<T> throwableMatcher2) {...

Source:ThrowableCauseMatcher.java

...19        describeMismatchSafely((Throwable) ((Throwable) obj), description);20    }21    /* access modifiers changed from: protected */22    @Override // org.hamcrest.TypeSafeMatcher23    public /* bridge */ /* synthetic */ boolean matchesSafely(Object obj) {24        return matchesSafely((Throwable) ((Throwable) obj));25    }26    public ThrowableCauseMatcher(Matcher<? extends Throwable> causeMatcher2) {27        this.causeMatcher = causeMatcher2;28    }29    @Override // org.hamcrest.SelfDescribing30    public void describeTo(Description description) {31        description.appendText("exception with cause ");32        description.appendDescriptionOf(this.causeMatcher);33    }34    /* access modifiers changed from: protected */35    public boolean matchesSafely(T item) {36        return this.causeMatcher.matches(item.getCause());37    }38    /* access modifiers changed from: protected */39    public void describeMismatchSafely(T item, Description description) {40        description.appendText("cause ");41        this.causeMatcher.describeMismatch(item.getCause(), description);42    }43    @Factory44    public static <T extends Throwable> Matcher<T> hasCause(Matcher<? extends Throwable> matcher) {45        return new ThrowableCauseMatcher(matcher);46    }47}...

Source:ThrowableMessageMatcher.java

...19        describeMismatchSafely((Throwable) ((Throwable) obj), description);20    }21    /* access modifiers changed from: protected */22    @Override // org.hamcrest.TypeSafeMatcher23    public /* bridge */ /* synthetic */ boolean matchesSafely(Object obj) {24        return matchesSafely((Throwable) ((Throwable) obj));25    }26    public ThrowableMessageMatcher(Matcher<String> matcher2) {27        this.matcher = matcher2;28    }29    @Override // org.hamcrest.SelfDescribing30    public void describeTo(Description description) {31        description.appendText("exception with message ");32        description.appendDescriptionOf(this.matcher);33    }34    /* access modifiers changed from: protected */35    public boolean matchesSafely(T item) {36        return this.matcher.matches(item.getMessage());37    }38    /* access modifiers changed from: protected */39    public void describeMismatchSafely(T item, Description description) {40        description.appendText("message ");41        this.matcher.describeMismatch(item.getMessage(), description);42    }43    @Factory44    public static <T extends Throwable> Matcher<T> hasMessage(Matcher<String> matcher2) {45        return new ThrowableMessageMatcher(matcher2);46    }47}...

Source:CustomMatchers.java

...15public class CustomMatchers {16    public static <T> Matcher<Collection<? extends T>> onlyHasItems(T... expectedItems) {17        return new TypeSafeMatcher<Collection<? extends T>>() {18            @Override19            protected boolean matchesSafely(Collection<? extends T> actualItems) {20                return hasSize(expectedItems.length).matches(actualItems)21                        && hasItems(expectedItems).matches(actualItems);22            }23            @Override24            public void describeTo(Description description) {25                description.appendText(Arrays.toString(expectedItems));26            }27        };28    }29    public static <T> TypeSafeMatcher<Collection<? extends T>> onlyHasItemsInOrder(T... expectedItems) {30        return new TypeSafeMatcher<Collection<? extends T>>() {31            @Override32            protected boolean matchesSafely(Collection<? extends T> actualItems) {33                boolean matches = actualItems.size() == asList(expectedItems).size();34                List<T> actualItemsList = new ArrayList<>(actualItems);35                for (int index = 0; index < expectedItems.length; index++) {36                    matches = matches && is(actualItemsList.get(index)).matches(expectedItems[index]);37                }38                return matches;39            }40            @Override41            public void describeTo(Description description) {42                String expectedItemsString = stream(expectedItems)43                        .map(Object::toString)44                        .collect(joining(","));45                description.appendText("Containing only [" + expectedItemsString + "] in order");46            }47        };48    }49}...

matches

Using AI Code Generation

1import static org.hamcrest.MatcherAssert.assertThat;2import static org.hamcrest.Matchers.*;3import static org.hamcrest.core.Is.is;4import org.hamcrest.TypeSafeMatcher;5import org.junit.Test;6public class TypeSafeMatcherTest {7    public void testTypeSafeMatcher() {8        int a = 10;9        int b = 20;10        int c = 30;11        assertThat(a, is(lessThan(b)));12        assertThat(a, is(lessThan(c)));13        assertThat(b, is(greaterThan(a)));14        assertThat(b, is(lessThan(c)));15        assertThat(c, is(greaterThan(a)));16        assertThat(c, is(greaterThan(b)));17        assertThat(a, is(lessThan(b) & lessThan(c)));18        assertThat(b, is(greaterThan(a) & lessThan(c)));19        assertThat(c, is(greaterThan(a) & greaterThan(b)));20        assertThat(a, is(lessThan(b) & lessThan(c) & lessThan(a + b + c)));21        assertThat(b, is(greaterThan(a) & lessThan(c) & lessThan(a + b + c)));22        assertThat(c, is(greaterThan(a) & greaterThan(b) & lessThan(a + b + c)));23        assertThat(a, is(lessThan(b) & lessThan(c) & lessThan(a + b + c) & lessThan(a * b * c)));24        assertThat(b, is(greaterThan(a) & lessThan(c) & lessThan(a + b + c) & lessThan(a * b * c)));25        assertThat(c, is(greaterThan(a) & greaterThan(b) & lessThan(a + b + c) & lessThan(a * b * c)));26        assertThat(a, is(lessThan(b) & lessThan(c) & lessThan(a + b + c) & lessThan(a * b * c) & lessThan(a - b - c)));27        assertThat(b, is(greaterThan(a) & lessThan(c) & lessThan(a + b + c) & lessThan(a * b * c) & lessThan(a - b - c)));28        assertThat(c, is(greaterThan(a) & greaterThan(b) & lessThan(a + b + c) & lessThan(a * b * c) & lessThan(a - b - c)));29        assertThat(a, is(lessThan(b) & lessThan(c) & lessThan(a + b

matches

Using AI Code Generation

1import org.hamcrest.MatcherAssert;2import org.hamcrest.TypeSafeMatcher;3import org.hamcrest.Description;4import org.hamcrest.Factory;5public class IsPhoneNumber extends TypeSafeMatcher<String> {6    public boolean matchesSafely(String s) {7        return s.matches("\\d{3}-\\d{3}-\\d{4}");8    }9    public void describeTo(Description description) {10        description.appendText("a valid phone number");11    }12    public static IsPhoneNumber validPhoneNumber() {13        return new IsPhoneNumber();14    }15}16public void testValidPhoneNumber() {17    String phoneNumber = "123-456-7890";18    MatcherAssert.assertThat(phoneNumber, IsPhoneNumber.validPhoneNumber());19}20at org.junit.Assert.assertEquals(Assert.java:115)21at org.junit.Assert.assertEquals(Assert.java:144)22at org.junit.Assert.assertThat(Assert.java:1006)23at org.junit.Assert.assertThat(Assert.java:1000)24at com.journaldev.junit.IsPhoneNumberTest.testValidPhoneNumber(IsPhoneNumberTest.java:21)25JUnit 4 TemporaryFolder Rule JUnit 4 ExpectedException ExpectedException.none() Rule26JUnit 4 ExpectedException ExpectedException.none() Rule JUnit 4 Parameterized Tests27JUnit 4 Timeout Rule JUnit 4 ExpectedException ExpectedException.none() Rule28JUnit 4 ExpectedException ExpectedException.none() Rule JUnit 4 ExpectedException Rule29JUnit 4 Timeout Rule JUnit 4 ExpectedException ExpectedException.none() Rule30JUnit 4 ExpectedException ExpectedException.none() Rule JUnit 4 ExpectedException Rule

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JUnit Tutorial Chapters:

Here are the detailed JUnit testing chapters to help you get started:

Importance of Unit testing - Learn why Unit testing is essential during the development phase to identify bugs and errors.
Top Java Unit testing frameworks - Here are the upcoming JUnit automation testing frameworks that you can use in 2023 to boost your unit testing.
What is the JUnit framework
Why is JUnit testing important - Learn the importance and numerous benefits of using the JUnit testing framework.
Features of JUnit - Learn about the numerous features of JUnit and why developers prefer it.
JUnit 5 vs. JUnit 4: Differences - Here is a complete comparison between JUnit 5 and JUnit 4 testing frameworks.
Setting up the JUnit environment - Learn how to set up your JUnit testing environment.
Getting started with JUnit testing - After successfully setting up your JUnit environment, this chapter will help you get started with JUnit testing in no time.
Parallel testing with JUnit - Parallel Testing can be used to reduce test execution time and improve test efficiency. Learn how to perform parallel testing with JUnit.
Annotations in JUnit - When writing automation scripts with JUnit, we can use JUnit annotations to specify the type of methods in our test code. This helps us identify those methods when we run JUnit tests using Selenium WebDriver. Learn in detail what annotations are in JUnit.
Assertions in JUnit - Assertions are used to validate or test that the result of an action/functionality is the same as expected. Learn in detail what assertions are and how to use them while performing JUnit testing.
Parameterization in JUnit - Parameterized Test enables you to run the same automated test scripts with different variables. By collecting data on each method's test parameters, you can minimize time spent on writing tests. Learn how to use parameterization in JUnit.
Nested Tests In JUnit 5 - A nested class is a non-static class contained within another class in a hierarchical structure. It can share the state and setup of the outer class. Learn about nested annotations in JUnit 5 with examples.
Best practices for JUnit testing - Learn about the best practices, such as always testing key methods and classes, integrating JUnit tests with your build, and more to get the best possible results.
Advanced Use Cases for JUnit testing - Take a deep dive into the advanced use cases, such as how to run JUnit tests in Jupiter, how to use JUnit 5 Mockito for Unit testing, and more for JUnit testing.