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

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

Source:Strings_assertContainsOnlyOnce_Test.java

...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}...

assertContainsOnlyOnce

Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThat;2import static org.assertj.core.internal.Strings.assertContainsOnlyOnce;3import static org.assertj.core.test.TestData.someInfo;4import org.assertj.core.api.AssertionInfo;5import org.assertj.core.internal.Strings;6import org.junit.Test;7public class Strings_assertContainsOnlyOnce_Test {8  private Strings strings = Strings.instance();9  public void should_pass_if_actual_contains_given_values_only_once() {10    AssertionInfo info = someInfo();11    String actual = "Yoda";12    String[] values = { "Yo", "da" };13    assertContainsOnlyOnce(info, actual, values);14  }15  public void should_fail_if_actual_contains_given_values_more_than_once() {16    thrown.expect(AssertionError.class);17    AssertionInfo info = someInfo();18    String actual = "Yoda";19    String[] values = { "Yo", "da", "Yo" };20    assertContainsOnlyOnce(info, actual, values);21  }22  public void should_fail_if_actual_does_not_contain_given_values() {23    thrown.expect(AssertionError.class);24    AssertionInfo info = someInfo();25    String actual = "Yoda";26    String[] values = { "Luke", "Leia" };27    assertContainsOnlyOnce(info, actual, values);28  }29  public void should_fail_if_actual_is_null() {30    thrown.expect(AssertionError.class);31    assertContainsOnlyOnce(someInfo(), null, arrayOf("Yoda"));32  }33  public void should_fail_if_actual_is_empty() {34    thrown.expect(AssertionError.class);35    assertContainsOnlyOnce(someInfo(), "", arrayOf("Yoda"));36  }37  public void should_throw_error_if_given_values_is_null() {38    thrown.expect(NullPointerException.class);39    assertContainsOnlyOnce(someInfo(), "Yoda", null);40  }41  public void should_throw_error_if_given_values_is_empty() {42    thrown.expect(IllegalArgumentException.class);43    assertContainsOnlyOnce(someInfo(), "Yoda", emptyArray());44  }45}46We use the static import to be able to use the assertContainsOnly

assertContainsOnlyOnce

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.internal.ErrorMessages.*;4import static org.assertj.core.test.TestData.someInfo;5import static org.assertj.core.util.FailureMessages.actualIsNull;6import static org.assertj.core.util.Sets.newLinkedHashSet;7import static org.assertj.core.util.Sets.newTreeSet;8import static org.assertj.core.util.Sets.newHashSet;9import static org.assertj.core.api.Assertions.*;10import org.junit.Test;11import java.util.*;12import org.assertj.core.api.*;13import org.assertj.core.api.Assertions.*;14import org.assertj.core.internal.*;15import org.assertj.core.internal.Strings;16import org.assertj.core.util.*;17import org.junit.*;18import static org.assertj.core.api.Assertions.assertThat;19import static org.assertj.core.api.Assertions.assertThatExceptionOfType;20import static org.assertj.core.internal.ErrorMessages.*;21import static org.assertj.core.test.TestData.someInfo;22import static org.assertj.core.util.FailureMessages.actualIsNull;23import static org.assertj.core.util.Sets.newLinkedHashSet;24import static org.assertj.core.util.Sets.newTreeSet;25import static org.assertj.core.util.Sets.newHashSet;26import static org.assertj.core.api.Assertions.*;27import org.junit.Test;28import java.util.*;29import org.assertj.core.api.*;30import org.assertj.core.api.Assertions.*;31import org.assertj.core.internal.*;32import org.assertj.core.internal.Strings;33import org.assertj.core.util.*;34import org.junit.*;35public class AssertJCoreAssertThatTest {36public void assertThatTest1() {37assertThat("abc").contains("b").doesNotContain("d");38}39public void assertThatTest2() {40assertThat(new String[]{"a", "b"}).contains("a", "b").doesNotContain("c");41}42public void assertThatTest3() {43assertThat(new HashSet<String>(Arrays.asList("a", "b"))).contains("a").doesNotContain("c");44}45public void assertThatTest4() {46assertThat(new String[]{"a", "b"}).contains("a", "b").doesNotContain("c");47}48public void assertThatTest5() {49assertThat(new HashSet<String>(Arrays.asList("a", "b"))).contains("a").doesNotContain("c");50}51public void assertThatTest6() {52assertThat("abc").contains("b").doesNotContain("d");53}54public void assertThatTest7() {55assertThat(new

assertContainsOnlyOnce

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.internal.Strings;3import org.junit.Test;4public class AssertContainsOnlyOnceTest {5    public void test() {6        String s = "My name is John Doe";7        String word = "John";8        Strings strings = new Strings();9        strings.assertContainsOnlyOnce(Assertions.assertThat(s), word);10    }11}

assertContainsOnlyOnce

Using AI Code Generation

1    public void testAssertContainsOnlyOnce() {2        String str = "This is a test";3        String substring = "test";4        Assertions.assertThat(str).containsOnlyOnce(substring);5    }6    public void testAssertContainsOnlyOnce() {7        String str = "This is a test";8        String substring = "test";9        Assertions.assertThat(str).containsOnlyOnce(substring);10    }11    public void testAssertContainsOnlyOnce() {12        String str = "This is a test";13        String substring = "test";14        Assertions.assertThat(str).containsOnlyOnce(substring);15    }16    public void testAssertContainsOnlyOnce() {17        String str = "This is a test";18        String substring = "test";19        Assertions.assertThat(str).containsOnlyOnce(substring);20    }21    public void testAssertContainsOnlyOnce() {22        String str = "This is a test";23        String substring = "test";24        Assertions.assertThat(str).containsOnlyOnce(substring);25    }26    public void testAssertContainsOnlyOnce() {27        String str = "This is a test";28        String substring = "test";29        Assertions.assertThat(str).containsOnlyOnce(substring);30    }31    public void testAssertContainsOnlyOnce() {

assertContainsOnlyOnce

Using AI Code Generation

1    public void testAssertContainsOnlyOnce() {2        assertThat("Hello World").as("Test String").containsOnlyOnce("Hello");3    }4AssertJ containsOnlyOnce() method5assertThat(string).containsOnlyOnce(substring)6    public void testContainsOnlyOnce() {7        assertThat("Hello World").as("Test String").containsOnlyOnce("Hello");8    }9JUnit containsOnlyOnce() method10assertThat(string, containsOnlyOnce(substring))11    public void testContainsOnlyOnce() {12        assertThat("Hello World", containsOnlyOnce("Hello"));13    }14This is a guide to AssertJ and JUnit containsOnlyOnce() method. Here we discuss the AssertJ containsOnlyOnce() method, JUnit contains

assertContainsOnlyOnce

Using AI Code Generation

1    public static void assertContainsOnlyOnce(AssertionInfo info, CharSequence actual, char value) {2        assertNotNull(info, actual);3        if (actual instanceof String) {4            String actualAsString = (String) actual;5            int occurrences = 0;6            for (int i = 0; i < actualAsString.length(); i++) {7                if (actualAsString.charAt(i) == value) {8                    occurrences++;9                }10            }11            if (occurrences != 1) {12                throw failures.failure(info, shouldContainOnlyOnce(actual, value, occurrences));13            }14        } else {15            int occurrences = 0;16            for (int i = 0; i < actual.length(); i++) {17                if (actual.charAt(i) == value) {18                    occurrences++;19                }20            }21            if (occurrences != 1) {22                throw failures.failure(info, shouldContainOnlyOnce(actual, value, occurrences));23            }24        }25    }26}27public static void assertContainsOnlyOnce(AssertionInfo info, CharSequence actual, char value) {28        assertNotNull(info, actual);29        int occurrences = countOccurrences(actual, value);30        if (occurrences != 1) {31            throw failures.failure(info, shouldContainOnlyOnce(actual, value, occurrences));32        }33    }34    private static int countOccurrences(CharSequence actual, char value) {35        int occurrences = 0;36        for (int i = 0; i < actual.length(); i++) {37            if (actual.charAt(i) == value) {38                occurrences++;39            }40        }41        return occurrences;42    }

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