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How to use appendDescriptionOf method of org.hamcrest.BaseDescription class

Best junit code snippet using org.hamcrest.BaseDescription.appendDescriptionOf

Source:BaseDescription.java

...19/*  19 */     return this;20/*     */   }21/*     */ 22/*     */   23/*     */   public Description appendDescriptionOf(SelfDescribing value) {24/*  24 */     value.describeTo(this);25/*  25 */     return this;26/*     */   }27/*     */ 28/*     */   29/*     */   public Description appendValue(Object value) {30/*  30 */     if (value == null) {31/*  31 */       append("null");32/*  32 */     } else if (value instanceof String) {33/*  33 */       toJavaSyntax((String)value);34/*  34 */     } else if (value instanceof Character) {35/*  35 */       append('"');36/*  36 */       toJavaSyntax(((Character)value).charValue());37/*  37 */       append('"');38/*  38 */     } else if (value instanceof Short) {39/*  39 */       append('<');40/*  40 */       append(descriptionOf(value));41/*  41 */       append("s>");42/*  42 */     } else if (value instanceof Long) {43/*  43 */       append('<');44/*  44 */       append(descriptionOf(value));45/*  45 */       append("L>");46/*  46 */     } else if (value instanceof Float) {47/*  47 */       append('<');48/*  48 */       append(descriptionOf(value));49/*  49 */       append("F>");50/*  50 */     } else if (value.getClass().isArray()) {51/*  51 */       appendValueList("[", ", ", "]", (Iterator<?>)new ArrayIterator(value));52/*     */     } else {53/*  53 */       append('<');54/*  54 */       append(descriptionOf(value));55/*  55 */       append('>');56/*     */     } 57/*  57 */     return this;58/*     */   }59/*     */   60/*     */   private String descriptionOf(Object value) {61/*     */     try {62/*  62 */       return String.valueOf(value);63/*     */     }64/*  64 */     catch (Exception e) {65/*  65 */       return value.getClass().getName() + "@" + Integer.toHexString(value.hashCode());66/*     */     } 67/*     */   }68/*     */ 69/*     */   70/*     */   public <T> Description appendValueList(String start, String separator, String end, T... values) {71/*  71 */     return appendValueList(start, separator, end, Arrays.asList((Object[])values));72/*     */   }73/*     */ 74/*     */   75/*     */   public <T> Description appendValueList(String start, String separator, String end, Iterable<T> values) {76/*  76 */     return appendValueList(start, separator, end, values.iterator());77/*     */   }78/*     */   79/*     */   private <T> Description appendValueList(String start, String separator, String end, Iterator<T> values) {80/*  80 */     return appendList(start, separator, end, (Iterator<? extends SelfDescribing>)new SelfDescribingValueIterator(values));81/*     */   }82/*     */ 83/*     */   84/*     */   public Description appendList(String start, String separator, String end, Iterable<? extends SelfDescribing> values) {85/*  85 */     return appendList(start, separator, end, values.iterator());86/*     */   }87/*     */   88/*     */   private Description appendList(String start, String separator, String end, Iterator<? extends SelfDescribing> i) {89/*  89 */     boolean separate = false;90/*     */     91/*  91 */     append(start);92/*  92 */     while (i.hasNext()) {93/*  93 */       if (separate) append(separator); 94/*  94 */       appendDescriptionOf(i.next());95/*  95 */       separate = true;96/*     */     } 97/*  97 */     append(end);98/*     */     99/*  99 */     return this;100/*     */   }101/*     */ 102/*     */ 103/*     */ 104/*     */ 105/*     */ 106/*     */   107/*     */   protected void append(String str) {108/* 108 */     for (int i = 0; i < str.length(); i++) {...

Source:StringDescription.java

...8    public StringDescription(Appendable out2) {9        this.out = out2;10    }11    public static String toString(SelfDescribing selfDescribing) {12        return new StringDescription().appendDescriptionOf(selfDescribing).toString();13    }14    public static String asString(SelfDescribing selfDescribing) {15        return toString(selfDescribing);16    }17    /* access modifiers changed from: protected */18    @Override // org.hamcrest.BaseDescription19    public void append(String str) {20        try {21            this.out.append(str);22        } catch (IOException e) {23            throw new RuntimeException("Could not write description", e);24        }25    }26    /* access modifiers changed from: protected */...

appendDescriptionOf

Using AI Code Generation

1import org.hamcrest.BaseDescription2import org.hamcrest.Description3import org.hamcrest.Matcher4class CustomDescription extends BaseDescription {5    Description appendDescriptionOf(Matcher matcher) {6        return matcher.describeTo(this)7    }8}9def description = new CustomDescription()10assert description.appendText('hello').toString() == 'hello'11assert description.appendText('world').toString() == 'helloworld'12assert description.appendText('!').toString() == 'helloworld!'13assert description.appendDescriptionOf(1).toString() == 'helloworld!1'14assert description.appendDescriptionOf([1, 2, 3]).toString() == 'helloworld!1[1, 2, 3]'15assert description.appendDescriptionOf([1, 2, 3] as Set).toString() == 'helloworld!1[1, 2, 3]'16assert description.appendDescriptionOf([1, 2, 3] as List).toString() == 'helloworld!1[1, 2, 3]'17assert description.appendDescriptionOf([1, 2, 3] as Map).toString() == 'helloworld!1[1: 1, 2: 2, 3: 3]'18assert description.appendDescriptionOf([1, 2, 3] as Set).toString() == 'helloworld!1[1, 2, 3]'19assert description.appendDescriptionOf([1, 2, 3] as List).toString() == 'helloworld!1[1, 2, 3]'20assert description.appendDescriptionOf([1, 2, 3] as Map).toString() == 'helloworld!1[1: 1, 2: 2, 3: 3]'21assert description.appendDescriptionOf([1, 2, 3] as Set).toString() == 'helloworld!1[1, 2, 3]'22assert description.appendDescriptionOf([1, 2, 3] as List).toString() == 'helloworld!1[1, 2, 3]'23assert description.appendDescriptionOf([1, 2, 3] as Map).toString() == 'helloworld!1[1: 1, 2: 2, 3: 3]'24assert description.appendDescriptionOf([1, 2,

appendDescriptionOf

Using AI Code Generation

1public class AppendDescriptionOfMatcher extends BaseMatcher<String> {2    public boolean matches(Object o) {3        return o.toString().equals("Hello");4    }5    public void describeTo(Description description) {6        description.appendText("Hello");7    }8    public void describeMismatch(Object item, Description description) {9        description.appendText("Hello");10        description.appendDescriptionOf(new StringDescription().appendText("World"));11    }12}13public void testAppendDescriptionOf() {14    assertThat("Hello", new AppendDescriptionOfMatcher());15}

appendDescriptionOf

Using AI Code Generation

1import org.hamcrest.BaseDescription2import org.hamcrest.Description3import org.hamcrest.Matcher4import org.hamcrest.TypeSafeMatcher5class StringEndsWithMatcher extends TypeSafeMatcher<String> {6    StringEndsWithMatcher(String expectedSuffix) {7    }8    boolean matchesSafely(String item) {9        item.endsWith(expectedSuffix)10    }11    void describeTo(Description description) {12        description.appendText("a string ending with ").appendValue(expectedSuffix)13    }14    void describeMismatchSafely(String item, Description mismatchDescription) {15        mismatchDescription.appendText("was ").appendValue(item)16    }17}18def endsWith(String suffix) {19    new StringEndsWithMatcher(suffix)20}21def matcher = endsWith("suffix")22assert matcher.matches("ends with suffix")23assert !matcher.matches("ends with prefix")24assert matcher.describeTo(new BaseDescription() as Description).toString() == "a string ending with \"suffix\""25assert matcher.describeMismatch("ends with prefix", new BaseDescription() as Description).toString() == "was \"ends with prefix\""26assert matcher.toString() == "a string ending with \"suffix\""27import org.hamcrest.BaseDescription;28import org.hamcrest.Description;29import org.hamcrest.Matcher;30import org.hamcrest.TypeSafeMatcher;31public class StringEndsWithMatcher extends TypeSafeMatcher<String> {32    private String expectedSuffix;33    public StringEndsWithMatcher(String expectedSuffix) {34        this.expectedSuffix = expectedSuffix;35    }36    protected boolean matchesSafely(String item) {37        return item.endsWith(expectedSuffix);38    }39    public void describeTo(Description description) {40        description.appendText("a string ending with ").appendValue(expectedSuffix);41    }42    protected void describeMismatchSafely(String item, Description mismatchDescription) {43        mismatchDescription.appendText("was ").appendValue(item);44    }45}46public static Matcher<String> endsWith(String suffix) {47    return new StringEndsWithMatcher(suffix);

appendDescriptionOf

Using AI Code Generation

1import org.hamcrest.BaseDescription2import org.hamcrest.Description3import org.hamcrest.Matcher4import org.hamcrest.TypeSafeMatcher5import org.junit.Assert.assertThat6import org.junit.Test7class CustomMatcherTest {8    fun testCustomMatcher() {9        val matcher = object : TypeSafeMatcher<String>() {10            override fun describeTo(description: Description) {11                description.appendText("a string of length 5")12            }13            override fun matchesSafely(item: String): Boolean {14            }15        }16        assertThat("hello", matcher)17    }18}19import org.hamcrest.BaseDescription20import org.hamcrest.Description21import org.hamcrest.Matcher22import org.hamcrest.TypeSafeMatcher23import org.junit.Assert.assertThat24import org.junit.Test25class CustomMatcherTest {26    fun testCustomMatcher() {27        val matcher = object : TypeSafeMatcher<String>() {28            override fun describeTo(description: Description) {29                description.appendText("a string of length 5")30                description.appendText(" but was a string of length ")31                description.appendDescriptionOf(object : BaseDescription() {32                    override fun appendTo(buffer: StringBuffer) {33                        buffer.append("5")34                    }35                })36            }37            override fun matchesSafely(item: String): Boolean {38            }39        }40        assertThat("hello", matcher)41    }42}

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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.
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