How to use isEmpty method of org.assertj.core.api.AbstractInputStreamAssert class

Best Assertj code snippet using org.assertj.core.api.AbstractInputStreamAssert.isEmpty

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...77 * <b>Warning: this will consume the first byte of the {@code InputStream}.</​b>78 * <p>79 * Example:80 * <pre><code class='java'> /​/​ assertion will pass81 * assertThat(new ByteArrayInputStream(new byte[] {})).isEmpty());82 *83 * /​/​ assertions will fail84 * assertThat(new ByteArrayInputStream(new byte[] {0xa})).isEmpty(); </​code></​pre>85 *86 * @return {@code this} assertion object.87 * @throws NullPointerException if the given {@code InputStream} is {@code null}.88 * @throws AssertionError if the content of the actual {@code InputStream} is not empty.89 * @throws InputStreamsException if an I/​O error occurs.90 * @since 3.17.091 */​92 public SELF isEmpty() {93 inputStreams.assertIsEmpty(info, actual);94 return myself;95 }96 /​**97 * Verifies that the content of the actual {@code InputStream} is not empty.98 * <p>99 * <b>Warning: this will consume the first byte of the {@code InputStream}.</​b>100 * <p>101 * Example:102 * <pre><code class='java'> /​/​ assertion will pass103 * assertThat(new ByteArrayInputStream(new byte[] {0xa})).isNotEmpty());104 *105 * /​/​ assertions will fail106 * assertThat(new ByteArrayInputStream(new byte[] {})).isNotEmpty();</​code></​pre>...

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...61 checkNotNull(expected, "The InputStream to compare to should not be null");62 assertNotNull(info, actual);63 try {64 List<Delta<String>> diffs = diff.diff(actual, expected);65 if (diffs.isEmpty()) return;66 throw failures.failure(info, shouldHaveSameContent(actual, expected, diffs));67 } catch (IOException e) {68 String msg = format("Unable to compare contents of InputStreams:%n <%s>%nand:%n <%s>", actual, expected);69 throw new InputStreamsException(msg, e);70 }71 }72 private static void assertNotNull(AssertionInfo info, InputStream stream) {73 Objects.instance().assertNotNull(info, stream);74 }75}...

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isEmpty

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1import org.assertj.core.api.AbstractInputStreamAssert;2import org.assertj.core.api.Assertions;3public class 1 {4 public static void main(String[] args) {5 AbstractInputStreamAssert<?, ?> abstractInputStreamAssert;6 abstractInputStreamAssert = Assertions.assertThat(new ByteArrayInputStream(new byte[] { 1, 2, 3 }));7 abstractInputStreamAssert.isEmpty();8 }9}

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isEmpty

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1import org.assertj.core.api.AbstractInputStreamAssert;2public class 1 {3 public static void main(String[] args) {4 AbstractInputStreamAssert<?> abstractInputStreamAssert = null;5 abstractInputStreamAssert.isEmpty();6 }7}8 at 1.main(1.java:7)9import org.assertj.core.api.AbstractInputStreamAssert;10public class 1 {11 public static void main(String[] args) {12 AbstractInputStreamAssert<?> abstractInputStreamAssert = null;13 abstractInputStreamAssert.isEmpty();14 }15}16 at 1.main(1.java:7)17import java.io.ByteArrayInputStream;18import java.io.InputStream;19import org.assertj.core.api.AbstractInputStreamAssert;20public class 1 {21 public static void main(String[] args) {22 InputStream inputStream = new ByteArrayInputStream(new byte[0]);23 AbstractInputStreamAssert<?> abstractInputStreamAssert = null;24 abstractInputStreamAssert.isEmpty();25 }26}27 at org.assertj.core.api.AbstractInputStreamAssert.isEmpty(AbstractInputStreamAssert.java:116)28 at 1.main(1.java:10)29import java.io.ByteArrayInputStream;30import java.io.InputStream;31import org.assertj.core.api.AbstractInputStreamAssert;32import org.assertj.core.api.Assertions;33public class 1 {34 public static void main(String[] args) {35 InputStream inputStream = new ByteArrayInputStream(new byte[0]);36 AbstractInputStreamAssert<?> abstractInputStreamAssert = Assertions.assertThat(inputStream);37 abstractInputStreamAssert.isEmpty();38 }39}

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isEmpty

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1public class Main {2 public static void main(String[] args) throws IOException {3 InputStream inputStream = new ByteArrayInputStream("".getBytes());4 assertThat(inputStream).isEmpty();5 }6}7 at org.assertj.core.error.ShouldBeEmpty.shouldBeEmpty(ShouldBeEmpty.java:21)8 at org.assertj.core.internal.InputStreams.assertIsEmpty(InputStreams.java:74)9 at org.assertj.core.api.AbstractInputStreamAssert.isEmpty(AbstractInputStreamAssert.java:125)10 at Main.main(Main.java:8)11public class Main {12 public static void main(String[] args) {13 String s = "";14 assertThat(s).isEmpty();15 }16}17 at org.assertj.core.error.ShouldBeEmpty.shouldBeEmpty(ShouldBeEmpty.java:21)18 at org.assertj.core.internal.Strings.assertIsEmpty(Strings.java:80)19 at org.assertj.core.api.AbstractCharSequenceAssert.isEmpty(AbstractCharSequenceAssert.java:95)20 at Main.main(Main.java:6)21public class Main {22 public static void main(String[] args) {23 List<String> list = new ArrayList<>();24 assertThat(list).isEmpty();25 }26}27 at org.assertj.core.error.ShouldBeEmpty.shouldBeEmpty(ShouldBeEmpty.java:21)28 at org.assertj.core.internal.Iterables.assertIsEmpty(Iterables.java:89)29 at org.assertj.core.api.AbstractIterableAssert.isEmpty(AbstractIterableAssert.java:90)30 at Main.main(Main.java:6)31public class Main {32 public static void main(String[] args) {33 String[] array = new String[0];34 assertThat(array).isEmpty();35 }36}37 at org.assertj.core.error.ShouldBeEmpty.shouldBeEmpty(ShouldBeEmpty.java:21)38 at org.assertj.core.internal.ObjectArrays.assertIsEmpty(ObjectArrays.java:67

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1import java.io.ByteArrayInputStream;2import java.io.IOException;3import org.assertj.core.api.AbstractInputStreamAssert;4import org.assertj.core.api.Assertions;5public class AssertionInputStreamAssertEmpty {6 public static void main(String[] args) throws IOException {7 ByteArrayInputStream in = new ByteArrayInputStream("Hello World!".getBytes());8 AbstractInputStreamAssert<?, ByteArrayInputStream> assertInputStream = Assertions.assertThat(in);9 assertInputStream.isEmpty();10 System.out.println("InputStream is empty.");11 }12}

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1public class AssertjExample {2 public static void main(String[] args) throws Exception {3 InputStream inputStream = new FileInputStream("test.txt");4 Assertions.assertThat(inputStream).isEmpty();5 }6}7Related Posts: Java - AssertJ - assertj-core - isNotEmpty() method8Java - AssertJ - assertj-core - isNotEmpty() method9Java - AssertJ - assertj-core - hasSize() method10Java - AssertJ - assertj-core - isInstanceOf() method

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