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How to use failIfPrefixIsNull method of org.assertj.core.internal.Strings class

Best Assertj code snippet using org.assertj.core.internal.Strings.failIfPrefixIsNull

Source:Strings.java

...407   * @throws AssertionError if the given {@code CharSequence} is {@code null}.408   * @throws AssertionError if the actual {@code CharSequence} does not start with the given prefix.409   */410  public void assertStartsWith(AssertionInfo info, CharSequence actual, CharSequence prefix) {411    failIfPrefixIsNull(prefix);412    assertNotNull(info, actual);413    if (!comparisonStrategy.stringStartsWith(actual.toString(), prefix.toString()))414      throw failures.failure(info, shouldStartWith(actual, prefix, comparisonStrategy));415  }416  /**417   * Verifies that the given {@code CharSequence} does not start with the given prefix.418   *419   * @param info contains information about the assertion.420   * @param actual the actual {@code CharSequence}.421   * @param prefix the given prefix.422   * @throws NullPointerException if the given sequence is {@code null}.423   * @throws AssertionError if the given {@code CharSequence} is {@code null}.424   * @throws AssertionError if the actual {@code CharSequence} starts with the given prefix.425   * @author Michal Kordas426   */427  public void assertDoesNotStartWith(AssertionInfo info, CharSequence actual, CharSequence prefix) {428    failIfPrefixIsNull(prefix);429    assertNotNull(info, actual);430    if (comparisonStrategy.stringStartsWith(actual.toString(), prefix.toString()))431      throw failures.failure(info, shouldNotStartWith(actual, prefix, comparisonStrategy));432  }433  private static void failIfPrefixIsNull(CharSequence prefix) {434    checkNotNull(prefix, "The given prefix should not be null");435  }436  /**437   * Verifies that the given {@code CharSequence} ends with the given suffix.438   * 439   * @param info contains information about the assertion.440   * @param actual the actual {@code CharSequence}.441   * @param suffix the given suffix.442   * @throws NullPointerException if the given sequence is {@code null}.443   * @throws AssertionError if the given {@code CharSequence} is {@code null}.444   * @throws AssertionError if the actual {@code CharSequence} does not end with the given suffix.445   */446  public void assertEndsWith(AssertionInfo info, CharSequence actual, CharSequence suffix) {447    failIfSuffixIsNull(suffix);...

failIfPrefixIsNull

Using AI Code Generation

1import org.assertj.core.api.AbstractAssert;2import org.assertj.core.api.AbstractCharSequenceAssert;3import org.assertj.core.api.Assertions;4import org.assertj.core.api.ObjectAssert;5import org.assertj.core.internal.Strings;6import org.assertj.core.util.VisibleForTesting;7import java.util.List;8import java.util.Map;9import static org.assertj.core.error.ShouldStartWith.shouldStartWith;10public class AssertJCustomAssertion extends AbstractAssert<AssertJCustomAssertion, String> {11    Strings strings = Strings.instance();12    protected AssertJCustomAssertion(String actual) {13        super(actual, AssertJCustomAssertion.class);14    }15    public static AssertJCustomAssertion assertThat(String actual) {16        return new AssertJCustomAssertion(actual);17    }18    public AssertJCustomAssertion startsWith(String prefix) {19        strings.failIfPrefixIsNull(prefix);20        if (!actual.startsWith(prefix)) {21            throwAssertionError(shouldStartWith(actual, prefix));22        }23        return this;24    }25    public AssertJCustomAssertion startsWithIgnoringCase(String prefix) {26        strings.failIfPrefixIsNull(prefix);27        if (!actual.toLowerCase().startsWith(prefix.toLowerCase())) {28            throwAssertionError(shouldStartWith(actual, prefix));29        }30        return this;31    }32    public AssertJCustomAssertion contains(String sequence) {33        strings.failIfSequenceIsNull(sequence);34        if (!actual.contains(sequence)) {35            throwAssertionError(shouldStartWith(actual, sequence));36        }37        return this;38    }39    public AssertJCustomAssertion containsIgnoringCase(String sequence) {40        strings.failIfSequenceIsNull(sequence);41        if (!actual.toLowerCase().contains(sequence.toLowerCase())) {42            throwAssertionError(shouldStartWith(actual, sequence));43        }44        return this;45    }46    public AssertJCustomAssertion doesNotContain(String sequence) {47        strings.failIfSequenceIsNull(sequence);48        if (actual.contains(sequence)) {49            throwAssertionError(shouldStartWith(actual, sequence));50        }51        return this;52    }53    public AssertJCustomAssertion doesNotContainIgnoringCase(String sequence) {54        strings.failIfSequenceIsNull(sequence);55        if (actual.toLowerCase().contains(sequence.toLowerCase())) {56            throwAssertionError(shouldStartWith(actual, sequence));57        }58        return this;59    }60    public AssertJCustomAssertion doesNotContainWhitespace() {61        strings.failIfSequenceIsNull(" ");62        if (actual.contains(" ")) {

failIfPrefixIsNull

Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThat;2import static org.assertj.core.api.Assertions.assertThatExceptionOfType;3import static org.assertj.core.api.Assertions.catchThrowable;4import static org.assertj.core.error.ShouldNotStartWith.shouldNotStartWith;5import static org.assertj.core.test.TestData.someInfo;6import static org.assertj.core.util.FailureMessages.actualIsNull;7import org.assertj.core.internal.Strings;8import org.assertj.core.internal.StringsBaseTest;9import org.junit.jupiter.api.DisplayName;10import org.junit.jupiter.api.Test;11class Strings_assertDoesNotStartWith_Test extends StringsBaseTest {12  @DisplayName("should throw an error if the given prefix is null")13  void should_throw_error_if_prefix_is_null() {14    String prefix = null;15    Throwable throwable = catchThrowable(() -> strings.assertDoesNotStartWith(someInfo(), "Yoda", prefix));16    assertThat(throwable).isInstanceOf(NullPointerException.class);17  }18  @DisplayName("should throw an error if the given string is null")19  void should_throw_error_if_actual_is_null() {20    String actual = null;21    Throwable throwable = catchThrowable(() -> strings.assertDoesNotStartWith(someInfo(), actual, "Yoda"));22    assertThat(throwable).isInstanceOf(AssertionError.class);23    assertThat(throwable).hasMessage(actualIsNull());24  }25  @DisplayName("should fail if actual starts with prefix")26  void should_fail_if_actual_starts_with_prefix() {27    String actual = "Yoda";28    String prefix = "Yo";29    AssertionError assertionError = assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> strings.assertDoesNotStartWith(someInfo(), actual, prefix));30    assertThat(assertionError).hasMessage(shouldNotStartWith(actual, prefix).create());31  }32  @DisplayName("should pass if actual does not start with prefix")33  void should_pass_if_actual_does_not_start_with_prefix() {34    String actual = "Yoda";35    String prefix = "Lu";

failIfPrefixIsNull

Using AI Code Generation

1public class AssertjCore {2    public static void main(String[] args) {3        Strings strings = new Strings();4        strings.failIfPrefixIsNull("prefix", "prefix is null");5    }6}7	at org.assertj.core.internal.Strings.failIfPrefixIsNull(Strings.java:50)8	at AssertjCore.main(AssertjCore.java:17)

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