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How to use checkNotNull method of org.assertj.core.util.Preconditions class

Best Assertj code snippet using org.assertj.core.util.Preconditions.checkNotNull

Source:Preconditions_checkNotNull_GenericObject_String_Test.java

...16import org.assertj.core.test.ExpectedException;17import org.junit.Rule;18import org.junit.Test;19/**20 * Tests for <code>{@link Preconditions#checkNotNull(Object, String)}</code>.21 * 22 * @author Christian RÃ¶sch23 */24public class Preconditions_checkNotNull_GenericObject_String_Test {25  private final static String CUSTOM_MESSAGE = "Wow, that's an error dude ..";26  @Rule27  public ExpectedException thrown = none();28  @Test29  public void should_throw_nullpointerexception_if_object_is_null() {30    thrown.expectNullPointerException(CUSTOM_MESSAGE);31    Object object = null;32    Preconditions.checkNotNull(object, CUSTOM_MESSAGE);33  }34  @Test35  public void should_return_object_if_it_is_not_null_nor_empty() {36    String object = "4711";37    String result = Preconditions.checkNotNull(object, CUSTOM_MESSAGE);38    assertThat(result).isEqualTo(object);39  }40}...

Source:Preconditions_checkNotNull_GenericObject_Test.java

...16import org.assertj.core.test.ExpectedException;17import org.junit.Rule;18import org.junit.Test;19/**20 * Tests for <code>{@link Preconditions#checkNotNull(Object)}</code>.21 * 22 * @author Christian RÃ¶sch23 */24public class Preconditions_checkNotNull_GenericObject_Test {25  @Rule26  public ExpectedException thrown = none();27  @Test28  public void should_throw_nullpointerexception_if_object_is_null() {29    thrown.expect(NullPointerException.class);30    Object object = null;31    Preconditions.checkNotNull(object);32  }33  @Test34  public void should_return_object_if_it_is_not_null_nor_empty() {35    String object = "4711";36    String result = Preconditions.checkNotNull(object);37    assertThat(result).isEqualTo(object);38  }39}...

checkNotNull

Using AI Code Generation

1import static org.assertj.core.util.Preconditions.checkNotNull;2public class 1 {3    public static void main(String[] args) {4        String myString = null;5        checkNotNull(myString, "myString is null");6    }7}8	at org.assertj.core.util.Preconditions.checkNotNull(Preconditions.java:13)9	at 1.main(1.java:6)

checkNotNull

Using AI Code Generation

1import org.assertj.core.util.Preconditions;2{3    public static void main(String[] args)4    {5        String s = null;6        Preconditions.checkNotNull(s, "String should not be null");7    }8}9at org.assertj.core.util.Preconditions.checkNotNull(Preconditions.java:40)10at AssertjPreconditions.main(AssertjPreconditions.java:9)

checkNotNull

Using AI Code Generation

1import org.assertj.core.util.Preconditions;2public class PreconditionsExample {3   public static void main(String[] args) {4      String str = null;5      System.out.println("String value: " + Preconditions.checkNotNull(str, "The String must not be null"));6   }7}8	at org.assertj.core.util.Preconditions.checkNotNull(Preconditions.java:24)9	at PreconditionsExample.main(PreconditionsExample.java:8)

checkNotNull

Using AI Code Generation

1package org.example;2import org.assertj.core.util.Preconditions;3public class Example {4    public static void main(String[] args) {5        String str = null;6        Preconditions.checkNotNull(str, "The value of str is null");7    }8}9package org.example;10import org.assertj.core.util.Preconditions;11public class Example {12    public static void main(String[] args) {13        String str = null;14        Preconditions.checkNotNull(str, "The value of str is null");15    }16}17package org.example;18import org.assertj.core.util.Preconditions;19public class Example {20    public static void main(String[] args) {21        String str = null;22        Preconditions.checkNotNull(str, "The value of str is null");23    }24}25package org.example;26import org.assertj.core.util.Preconditions;27public class Example {28    public static void main(String[] args) {29        String str = null;30        Preconditions.checkNotNull(str, "The value of str is null");31    }32}33package org.example;34import org.assertj.core.util.Preconditions;35public class Example {36    public static void main(String[] args) {37        String str = null;38        Preconditions.checkNotNull(str, "The value of str is null");39    }40}41package org.example;42import org.assertj.core.util.Preconditions;43public class Example {44    public static void main(String[] args) {45        String str = null;46        Preconditions.checkNotNull(str, "The value of str is null");47    }48}49package org.example;50import org.assertj.core.util.Preconditions;51public class Example {52    public static void main(String[] args) {53        String str = null;54        Preconditions.checkNotNull(str, "The value of str is null");55    }56}

checkNotNull

Using AI Code Generation

1import org.assertj.core.util.Preconditions;2public class 1 {3    public static void main(String[] args) {4        String str = "Hello";5        String str1 = "World";6        String str2 = "!";7        String str3 = null;8        String str4 = "Hi";9        String str5 = "there";10        String str6 = "!";11        System.out.println(Preconditions.checkNotNull(str, "str is null"));12        System.out.println(Preconditions.checkNotNull(str1, "str1 is null"));13        System.out.println(Preconditions.checkNotNull(str2, "str2 is null"));14        System.out.println(Preconditions.checkNotNull(str3, "str3 is null"));15        System.out.println(Preconditions.checkNotNull(str4, "str4 is null"));16        System.out.println(Preconditions.checkNotNull(str5, "str5 is null"));17        System.out.println(Preconditions.checkNotNull(str6, "str6 is null"));18    }19}

checkNotNull

Using AI Code Generation

1import org.assertj.core.util.Preconditions;2public class Main {3   public static void main(String[] args) {4      String name = null;5      Preconditions.checkNotNull(name, "Name should be provided.");6   }7}8	at org.assertj.core.util.Preconditions.checkNotNull(Preconditions.java:9)9	at Main.main(Main.java:6)

checkNotNull

Using AI Code Generation

1public class AssertjCheckNotNull {2    public static void main(String[] args) {3        String str = null;4        org.assertj.core.util.Preconditions.checkNotNull(str, "str");5        System.out.println("str is not null");6    }7}8	at org.assertj.core.util.Preconditions.checkNotNull(Preconditions.java:32)9	at AssertjCheckNotNull.main(1.java:5)10public class AssertjStringIsEmptyOrNull {11    public static void main(String[] args) {12        String str = "";13        org.assertj.core.api.Assertions.assertThat(str).isEmptyOrNull();14        System.out.println("str is empty or null");15    }16}17	at org.assertj.core.api.AbstractCharSequenceAssert.isEmptyOrNull(AbstractCharSequenceAssert.java:296)18	at AssertjStringIsEmptyOrNull.main(1.java:5)19public class AssertjStringIsNotEmptyOrNull {20    public static void main(String[] args) {21        String str = "hello";22        org.assertj.core.api.Assertions.assertThat(str).isNotEmptyOrNull();23        System.out.println("str is not empty or null");24    }25}26public class AssertjStringIsBlankOrNull {27    public static void main(String[] args) {28        String str = " ";29        org.assertj.core.api.Assertions.assertThat(str).isBlankOrNull();30        System.out.println("str is blank or null");31    }32}33	at org.assertj.core.api.AbstractCharSequenceAssert.isBlankOrNull(AbstractCharSequenceAssert.java:328)34	at AssertjStringIsBlankOrNull.main(1.java:5)

checkNotNull

Using AI Code Generation

1import org.assertj.core.util.Preconditions;2import java.util.Scanner;3{4    public static void main(String[] args) {5        Scanner sc = new Scanner(System.in);6        System.out.println("Enter the string");7        String str = sc.nextLine();8        Preconditions.checkNotNull(str);9        System.out.println("The string is not null");10    }11}

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