How to use ShouldContainCharSequenceOnlyOnce class of org.assertj.core.error package

Best Assertj code snippet using org.assertj.core.error.ShouldContainCharSequenceOnlyOnce

Source:Strings_assertContainsOnlyOnce_Test.java

...11 * Copyright 2012-2019 the original author or authors.12 */13package org.assertj.core.internal.strings;14import org.assertj.core.api.Assertions;15import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce;16import org.assertj.core.internal.ErrorMessages;17import org.assertj.core.internal.StringsBaseTest;18import org.assertj.core.test.TestData;19import org.assertj.core.util.FailureMessages;20import org.junit.jupiter.api.Test;21/**22 * Tests for <code>{@link Strings#assertContainsOnlyOnce(AssertionInfo, CharSequence, CharSequence)}</code>.23 */24public class Strings_assertContainsOnlyOnce_Test extends StringsBaseTest {25    @Test26    public void should_pass_if_actual_contains_given_string_only_once() {27        strings.assertContainsOnlyOnce(TestData.someInfo(), "Yoda", "Yo");28    }29    @Test30    public void should_fail_if_actual_contains_given_string_more_than_once() {31        Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> strings.assertContainsOnlyOnce(someInfo(), "Yodayoda", "oda")).withMessage(ShouldContainCharSequenceOnlyOnce.shouldContainOnlyOnce("Yodayoda", "oda", 2).create());32    }33    @Test34    public void should_fail_if_actual_contains_sequence_only_once_but_in_different_case() {35        Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> strings.assertContainsOnlyOnce(someInfo(), "Yoda", "yo")).withMessage(ShouldContainCharSequenceOnlyOnce.shouldContainOnlyOnce("Yoda", "yo", 0).create());36    }37    @Test38    public void should_fail_if_actual_does_not_contain_given_string() {39        Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> strings.assertContainsOnlyOnce(someInfo(), "Yoda", "Luke")).withMessage(ShouldContainCharSequenceOnlyOnce.shouldContainOnlyOnce("Yoda", "Luke", 0).create());40    }41    @Test42    public void should_throw_error_if_sequence_is_null() {43        Assertions.assertThatNullPointerException().isThrownBy(() -> strings.assertContainsOnlyOnce(someInfo(), "Yoda", null)).withMessage(ErrorMessages.charSequenceToLookForIsNull());44    }45    @Test46    public void should_fail_if_actual_is_null() {47        Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> strings.assertContainsOnlyOnce(someInfo(), null, "Yoda")).withMessage(FailureMessages.actualIsNull());48    }49    @Test50    public void should_pass_if_actual_contains_sequence_only_once_according_to_custom_comparison_strategy() {51        stringsWithCaseInsensitiveComparisonStrategy.assertContainsOnlyOnce(TestData.someInfo(), "Yoda", "Yo");52        stringsWithCaseInsensitiveComparisonStrategy.assertContainsOnlyOnce(TestData.someInfo(), "Yoda", "yo");53        stringsWithCaseInsensitiveComparisonStrategy.assertContainsOnlyOnce(TestData.someInfo(), "Yoda", "YO");54    }55    @Test56    public void should_fail_if_actual_does_not_contain_sequence_only_once_according_to_custom_comparison_strategy() {57        Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> stringsWithCaseInsensitiveComparisonStrategy.assertContainsOnlyOnce(someInfo(), "Yoda", "Luke")).withMessage(ShouldContainCharSequenceOnlyOnce.shouldContainOnlyOnce("Yoda", "Luke", 0, comparisonStrategy).create());58    }59    @Test60    public void should_fail_if_actual_contains_sequence_several_times_according_to_custom_comparison_strategy() {61        Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> stringsWithCaseInsensitiveComparisonStrategy.assertContainsOnlyOnce(someInfo(), "Yoda", "Luke")).withMessage(ShouldContainCharSequenceOnlyOnce.shouldContainOnlyOnce("Yoda", "Luke", 0, comparisonStrategy).create());62    }63}...

Source:ShouldContainCharSequenceOnlyOnce.java

...20 * @author Pauline Iogna21 * @author Joel Costigliola22 * @author Mikhail Mazursky23 */24public class ShouldContainCharSequenceOnlyOnce extends BasicErrorMessageFactory {25  /**26   * Creates a new <code>{@link ShouldContainCharSequenceOnlyOnce}</code>.27   * 28   * @param actual the actual value in the failed assertion.29   * @param sequence the String expected to be in {@code actual} only once.30   * @param occurrences the number of occurrences of sequence in actual.31   * @param comparisonStrategy the {@link ComparisonStrategy} used to evaluate assertion.32   * @return the created {@code ErrorMessageFactory}.33   */34  public static ErrorMessageFactory shouldContainOnlyOnce(CharSequence actual, CharSequence sequence, int occurrences,35      ComparisonStrategy comparisonStrategy) {36    if (occurrences == 0) return new ShouldContainCharSequenceOnlyOnce(actual, sequence, comparisonStrategy);37    return new ShouldContainCharSequenceOnlyOnce(actual, sequence, occurrences, comparisonStrategy);38  }39  /**40   * Creates a new <code>{@link ShouldContainCharSequenceOnlyOnce}</code>.41   * 42   * @param actual the actual value in the failed assertion.43   * @param sequence the String expected to be in {@code actual} only once.44   * @param occurrences the number of occurrences of sequence in actual.45   * @return the created {@code ErrorMessageFactory}.46   */47  public static ErrorMessageFactory shouldContainOnlyOnce(CharSequence actual, CharSequence sequence, int occurrences) {48    return shouldContainOnlyOnce(actual, sequence, occurrences, StandardComparisonStrategy.instance());49  }50  private ShouldContainCharSequenceOnlyOnce(CharSequence actual, CharSequence expected, int occurrences, ComparisonStrategy comparisonStrategy) {51    super("%nExpecting actual:%n  %s%nto appear only once in:%n  %s%nbut it appeared %s times %s", expected, actual,52        occurrences,53        comparisonStrategy);54  }55  private ShouldContainCharSequenceOnlyOnce(CharSequence actual, CharSequence expected, ComparisonStrategy comparisonStrategy) {56    super("%nExpecting actual:%n  %s%nto appear only once in:%n  %s%nbut it did not appear %s", expected, actual,57        comparisonStrategy);58  }59}...

ShouldContainCharSequenceOnlyOnce

Using AI Code Generation

1import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce;2import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce_create_Test;3import org.assertj.core.error.TestCondition;4import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce_create_Test;5import org.assertj.core.error.TestCondition;6import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce_create_Test;7import org.assertj.core.error.TestCondition;8import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce_create_Test;9import org.assertj.core.error.TestCondition;10import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce_create_Test;11import org.assertj.core.error.TestCondition;12import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce_create_Test;13import org.assertj.core.error.TestCondition;14import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce_create_Test;15import org.assertj.core.error.TestCondition;16import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce_create_Test;17import org.assertj.core.error.TestCondition;18import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce_create_Test;

ShouldContainCharSequenceOnlyOnce

Using AI Code Generation

1import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce;2import org.assertj.core.internal.TestDescription;3import org.assertj.core.presentation.StandardRepresentation;4import org.junit.Test;5import static org.assertj.core.api.Assertions.assertThat;6import static org.assertj.core.error.ShouldContainCharSequenceOnlyOnce.shouldContainOnlyOnce;7import static org.assertj.core.util.FailureMessages.actualIsNull;8public class ShouldContainCharSequenceOnlyOnce_Test {9	public void should_create_error_message() {10		String message = shouldContainOnlyOnce("Yoda", "do", 2).create(11				new TestDescription("Test"), new StandardRepresentation());12		assertThat(message).isEqualTo(String.format(13						+ "but it contained 2 times"));14	}15	public void should_create_error_message_with_custom_comparison_strategy() {16		String message = shouldContainOnlyOnce("Yoda", "do", 2).create(17				new TestDescription("Test"), new StandardRepresentation());18		assertThat(message).isEqualTo(String.format(19						+ "but it contained 2 times"));20	}21	public void should_create_error_message_when_actual_is_null() {22		String message = actualIsNull().create(new TestDescription("Test"), new StandardRepresentation());23		assertThat(message).isEqualTo("[Test] %nExpecting actual not to be null");24	}25}

ShouldContainCharSequenceOnlyOnce

Using AI Code Generation

1import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce;2import org.assertj.core.internal.TestDescription;3import org.assertj.core.presentation.StandardRepresentation;4import org.junit.Test;5import static org.assertj.core.api.Assertions.assertThat;6import static org.assertj.core.api.Assertions.assertThatExceptionOfType;7import static org.assertj.core.error.ShouldContainCharSequenceOnlyOnce.shouldContainCharSequenceOnlyOnce;8import static org.assertj.core.util.FailureMessages.actualIsNull;9import static org.assertj.core.util.Sets.newLinkedHashSet;10import static org.assertj.core.util.Throwables.getStackTrace;11public class ShouldContainCharSequenceOnlyOnceTest {12    private static final String actual = "Yoda";13    public void should_create_error_message() {14        String errorMessage = shouldContainCharSequenceOnlyOnce(actual, "od", newLinkedHashSet("od")).create(new TestDescription("Test"), new StandardRepresentation());15        assertThat(errorMessage).isEqualTo(String.format("[Test] %nExpecting:%n <\"Yoda\">%nto contain only once:%n <\"od\">%nbut found:%n <[\"od\", \"od\"]>%n"));16    }17    public void should_create_error_message_with_custom_comparison_strategy() {18        String errorMessage = shouldContainCharSequenceOnlyOnce(actual, "od", newLinkedHashSet("od")).create(new TestDescription("Test"), new StandardRepresentation());19        assertThat(errorMessage).isEqualTo(String.format("[Test] %nExpecting:%n <\"Yoda\">%nto contain only once:%n <\"od\">%nbut found:%n <[\"od\", \"od\"]>%n"));20    }21    public void should_create_error_message_with_custom_comparison_strategy_ignoring_case() {22        String errorMessage = shouldContainCharSequenceOnlyOnce(actual, "Od", newLinkedHashSet("Od")).create(new TestDescription("Test"), new StandardRepresentation());23        assertThat(errorMessage).isEqualTo(String.format("[Test] %nExpecting:%n <\"Yoda\">%nto contain only once:%n <\"Od\">%nbut found:%n <[\"Od\", \"Od\"]>%n"));24    }25    public void should_throw_error_if_sequence_is_null() {26        assertThatExceptionOfType(NullPointerException.class).isThrownBy(() -> shouldContainCharSequenceOnlyOnce(actual, null, newLinkedHashSet("od

ShouldContainCharSequenceOnlyOnce

Using AI Code Generation

1import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce;2import org.assertj.core.description.Description;3import org.assertj.core.presentation.StandardRepresentation;4import org.assertj.core.internal.TestDescription;5import org.junit.Test;6import static org.assertj.core.api.Assertions.assertThat;7import static org.assertj.core.error.ShouldContainCharSequenceOnlyOnce.shouldContainCharSequenceOnlyOnce;8import static org.assertj.core.presentation.StandardRepresentation.STANDARD_REPRESENTATION;9public class ShouldContainCharSequenceOnlyOnceTest {10    private ShouldContainCharSequenceOnlyOnce shouldContainCharSequenceOnlyOnce;11    public void should_create_error_message() {12        shouldContainCharSequenceOnlyOnce = shouldContainCharSequenceOnlyOnce("Yoda", "od", 2);13        assertThat(shouldContainCharSequenceOnlyOnce).hasMessage("Expecting:%n" + " <\"Yoda\">%n" + "to contain only once:%n" + " <\"od\">%n" + "but it was found 2 times");14    }15}

ShouldContainCharSequenceOnlyOnce

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce;3import org.junit.jupiter.api.Test;4import static org.assertj.core.api.Assertions.assertThatThrownBy;5import static org.assertj.core.error.ShouldContainCharSequenceOnlyOnce.shouldContainCharSequenceOnlyOnce;6public class AssertJTest {7    public void test() {8        assertThatThrownBy(() -> {9            throw new IllegalArgumentException("test");10        })11                .isInstanceOf(IllegalArgumentException.class)12                .hasMessage(shouldContainCharSequenceOnlyOnce("test", "test", 2).create());13    }14}15import org.assertj.core.api.Assertions;16import org.assertj.core.internal.ErrorMessages;17import org.assertj.core.internal.Objects;18import org.junit.jupiter.api.Test;19import static org.assertj.core.api.Assertions.assertThatThrownBy;20public class AssertJTest {21    public void test() {22        assertThatThrownBy(() -> {23            throw new IllegalArgumentException("test");24        })25                .isInstanceOf(IllegalArgumentException.class)26                .hasMessage(ErrorMessages.instance().shouldContainCharSequenceOnlyOnce("test", "test", 2));27    }28}29import org.assertj.core.api.Assertions;30import org.assertj.core.internal.ErrorMessages;31import org.assertj.core.internal.Objects;32import org.junit.jupiter.api.Test;33import static org.assertj.core.api.Assertions.assertThatThrownBy;34public class AssertJTest {35    public void test() {36        assertThatThrownBy(() -> {37            throw new IllegalArgumentException("test");38        })39                .isInstanceOf(IllegalArgumentException.class)40                .hasMessage(ErrorMessages.instance().shouldContainCharSequenceOnlyOnce("test", "test", 2));41    }42}43import org.assertj.core.api.Assertions;44import org.assertj.core.internal.ErrorMessages;45import org.assertj.core.internal.Objects;46import org.junit.jupiter.api.Test;47import static org.assertj.core.api.Assertions.assertThatThrownBy;48public class AssertJTest {49    public void test() {50        assertThatThrownBy(() -> {51            throw new IllegalArgumentException("test");52        })53                .isInstanceOf(IllegalArgumentException.class)54                .hasMessage(ErrorMessages.instance().shouldContain

ShouldContainCharSequenceOnlyOnce

Using AI Code Generation

1import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce;2import org.assertj.core.api.Assertions;3import org.assertj.core.api.ThrowableAssert.ThrowingCallable;4import org.assertj.core.internal.TestDescription;5import org.assertj.core.error.ErrorMessageFactory;6public class ShouldContainCharSequenceOnlyOnceTest {7  public void should_create_error_message() {8    ErrorMessageFactory factory = ShouldContainCharSequenceOnlyOnce.shouldContainOnlyOnce("Yoda", "od", 2);9    String message = factory.create(new TestDescription("Test"), new StandardRepresentation());10    Assertions.assertThat(message).isEqualTo(String.format("[Test] %nExpecting:%n <\"Yoda\">%nto contain only once:%n <\"od\">%nbut it was found 2 times"));11  }12}13import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce;14import org.assertj.core.api.Assertions;15import org.assertj.core.api.ThrowableAssert.ThrowingCallable;16import org.assertj.core.internal.TestDescription;17import org.assertj.core.error.ErrorMessageFactory;18public class ShouldContainCharSequenceOnlyOnceTest {19  public void should_create_error_message() {20    ErrorMessageFactory factory = ShouldContainCharSequenceOnlyOnce.shouldContainOnlyOnce("Yoda", "od", 2);21    String message = factory.create(new TestDescription("Test"), new StandardRepresentation());22    Assertions.assertThat(message).isEqualTo(String.format("[Test] %nExpecting:%n <\"Yoda\">%nto contain only once:%n <\"od\">%nbut it was found 2 times"));23  }24}25import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce;26import org.assertj.core.api.Assertions;27import org.assertj.core.api.ThrowableAssert.ThrowingCallable;28import org.assertj.core.internal.TestDescription;29import org.assertj.core.error.ErrorMessageFactory;30public class ShouldContainCharSequenceOnlyOnceTest {31  public void should_create_error_message() {32    ErrorMessageFactory factory = ShouldContainCharSequenceOnlyOnce.shouldContainOnlyOnce("Yoda", "od", 2);33    String message = factory.create(new TestDescription("Test"), new StandardRepresentation());34    Assertions.assertThat(message).isEqualTo(String.format("[Test] %nExpecting:%n <\"Yoda

ShouldContainCharSequenceOnlyOnce

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.error.ShouldContainCharSequenceOnlyOnce;3public class ShouldContainCharSequenceOnlyOnceExample {4   public static void main(String[] args) {5      String errorMessage = ShouldContainCharSequenceOnlyOnce.shouldContainCharSequenceOnlyOnce("Yoda", "do", 3).create();6      System.out.println(errorMessage);7   }8}

ShouldContainCharSequenceOnlyOnce

Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThat;2public class AssertJTest {3    public static void main(String[] args) {4        String str = "This is a string";5        assertThat(str).containsOnlyOnce("string");6    }7}8  <1> time(s)9AssertJ containsOnlyOnce() method10Let’s see the syntax of containsOnlyOnce() method:11assertThat(actual).containsOnlyOnce(expected);12Let’s see the example to use containsOnlyOnce() method:13Example to use containsOnlyOnce() method14import static org.assertj.core.api.Assertions.assertThat;15public class AssertJTest {16    public static void main(String[] args) {17        String str = "This is a string";18        assertThat(str).containsOnlyOnce("string");19    }20}21Example to use containsOnlyOnce() method

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.