KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta 
How to use Assertions_assertThat_with_Stream_startsWith_Test class of org.assertj.core.api package
Best Assertj code snippet using org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test
Source:Assertions_assertThat_with_Stream_startsWith_Test.java 
...20import org.assertj.core.util.CaseInsensitiveStringComparator;21import org.assertj.core.util.FailureMessages;22import org.assertj.core.util.Lists;23import org.junit.jupiter.api.Test;24public class Assertions_assertThat_with_Stream_startsWith_Test {25 Stream<String> infiniteStream = Stream.generate(() -> "");26 @Test27 public void should_reuse_stream_after_assertion() {28 Stream<String> names = Stream.of("Luke", "Leia");29 Assertions.assertThat(names).startsWith(Arrays.array("Luke", "Leia")).endsWith("Leia");30 }31 @Test32 public void should_throw_error_if_sequence_is_null() {33 Assertions.assertThatNullPointerException().isThrownBy(() -> assertThat(infiniteStream).startsWith(((String[]) (null)))).withMessage(ErrorMessages.valuesToLookForIsNull());34 }35 @Test36 public void should_pass_if_actual_and_sequence_are_empty() {37 Stream<Object> empty = Stream.of();38 Assertions.assertThat(empty).startsWith(ObjectArrays.emptyArray());39 }40 @Test41 public void should_fail_if_sequence_to_look_for_is_empty_and_actual_is_not() {42 Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> {43 Stream<String> names = Stream.of("Luke", "Leia");44 assertThat(names).startsWith(new String[0]);45 });46 }47 @Test48 public void should_fail_if_actual_is_null() {49 Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> {50 Stream<Object> names = null;51 assertThat(names).startsWith(emptyArray());52 }).withMessage(FailureMessages.actualIsNull());53 }54 @Test55 public void should_fail_if_sequence_is_bigger_than_actual() {56 Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> {57 String[] sequence = { "Luke", "Leia", "Obi-Wan", "Han", "C-3PO", "R2-D2", "Anakin" };58 Stream<String> names = Stream.of("Luke", "Leia");59 assertThat(names).startsWith(sequence);60 });61 }62 @Test63 public void should_fail_if_actual_does_not_start_with_sequence() {64 Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> {65 String[] sequence = { "Han", "C-3PO" };66 Stream<String> names = Stream.of("Luke", "Leia");67 assertThat(names).startsWith(sequence);68 });69 }70 @Test71 public void should_fail_if_actual_starts_with_first_elements_of_sequence_only() {72 Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> {73 String[] sequence = { "Luke", "Yoda" };74 Stream<String> names = Stream.of("Luke", "Leia");75 assertThat(names).startsWith(sequence);76 });77 }78 @Test79 public void should_pass_if_actual_starts_with_sequence() {80 Stream<String> names = Stream.of("Luke", "Leia", "Yoda");81 Assertions.assertThat(names).startsWith(Arrays.array("Luke", "Leia"));82 }83 @Test84 public void should_pass_if_actual_and_sequence_are_equal() {85 Stream<String> names = Stream.of("Luke", "Leia");86 Assertions.assertThat(names).startsWith(Arrays.array("Luke", "Leia"));87 }88 // ------------------------------------------------------------------------------------------------------------------89 // tests using a custom comparison strategy90 // ------------------------------------------------------------------------------------------------------------------91 @Test92 public void should_fail_if_actual_does_not_start_with_sequence_according_to_custom_comparison_strategy() {93 Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> {94 Stream<String> names = Stream.of("Luke", "Leia");95 String[] sequence = { "Han", "C-3PO" };96 assertThat(names).usingElementComparator(CaseInsensitiveStringComparator.instance).startsWith(sequence);97 });98 }99 @Test100 public void should_fail_if_actual_starts_with_first_elements_of_sequence_only_according_to_custom_comparison_strategy() {101 Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> {102 Stream<String> names = Stream.of("Luke", "Leia");103 String[] sequence = { "Luke", "Obi-Wan", "Han" };104 assertThat(names).usingElementComparator(CaseInsensitiveStringComparator.instance).startsWith(sequence);105 });106 }107 @Test108 public void should_pass_if_actual_starts_with_sequence_according_to_custom_comparison_strategy() {109 Stream<String> names = Stream.of("Luke", "Leia");110 String[] sequence = new String[]{ "LUKE" };111 Assertions.assertThat(names).usingElementComparator(CaseInsensitiveStringComparator.instance).startsWith(sequence);112 }113 @Test114 public void should_pass_if_actual_and_sequence_are_equal_according_to_custom_comparison_strategy() {115 Stream<String> names = Stream.of("Luke", "Leia");116 String[] sequence = new String[]{ "LUKE", "lEIA" };117 Assertions.assertThat(names).usingElementComparator(CaseInsensitiveStringComparator.instance).startsWith(sequence);118 }119 @Test120 public void test_issue_245() {121 Assertions_assertThat_with_Stream_startsWith_Test.Foo foo1 = new Assertions_assertThat_with_Stream_startsWith_Test.Foo("id", 1);122 foo1._f2 = "foo1";123 Assertions_assertThat_with_Stream_startsWith_Test.Foo foo2 = new Assertions_assertThat_with_Stream_startsWith_Test.Foo("id", 2);124 foo2._f2 = "foo1";125 List<Assertions_assertThat_with_Stream_startsWith_Test.Foo> stream2 = Lists.newArrayList(foo2);126 Assertions.assertThat(Stream.of(foo1)).usingElementComparatorOnFields("_f2").isEqualTo(stream2);127 Assertions.assertThat(Stream.of(foo1)).usingElementComparatorOnFields("id").isEqualTo(stream2);128 Assertions.assertThat(Stream.of(foo1)).usingElementComparatorIgnoringFields("bar").isEqualTo(stream2);129 }130 @Test131 public void test_issue_236() {132 List<Assertions_assertThat_with_Stream_startsWith_Test.Foo> stream2 = Lists.newArrayList(new Assertions_assertThat_with_Stream_startsWith_Test.Foo("id", 2));133 Assertions.assertThat(Stream.of(new Assertions_assertThat_with_Stream_startsWith_Test.Foo("id", 1))).usingElementComparatorOnFields("id").isEqualTo(stream2);134 Assertions.assertThat(Stream.of(new Assertions_assertThat_with_Stream_startsWith_Test.Foo("id", 1))).usingElementComparatorIgnoringFields("bar").isEqualTo(stream2);135 }136 public static class Foo {137 private String id;138 private int bar;139 public String _f2;140 public String getId() {141 return id;142 }143 public int getBar() {144 return bar;145 }146 public Foo(String id, int bar) {147 super();148 this.id = id;...
Assertions_assertThat_with_Stream_startsWith_Test
Using AI Code Generation
1package org.assertj.core.api;2import org.junit.jupiter.api.Test;3import static org.assertj.core.api.Assertions.assertThat;4import java.util.stream.Stream;5class Assertions_assertThat_with_Stream_startsWith_Test {6 void should_pass_if_actual_starts_with_expected() {7 Stream<String> actual = Stream.of("Yoda", "Luke", "Leia");8 assertThat(actual).startsWith("Yoda", "Luke");9 }10}11package org.assertj.core.api;12import org.junit.jupiter.api.Test;13import static org.assertj.core.api.Assertions.assertThat;14import java.util.stream.Stream;15class Assertions_assertThat_with_Stream_startsWith_Test {16 void should_pass_if_actual_starts_with_expected() {17 Stream<String> actual = Stream.of("Yoda", "Luke", "Leia");18 assertThat(actual).startsWith("Yoda", "Luke");19 }20}21package org.assertj.core.api;22import org.junit.jupiter.api.Test;23import static org.assertj.core.api.Assertions.assertThat;24import java.util.stream.Stream;25class Assertions_assertThat_with_Stream_startsWith_Test {26 void should_pass_if_actual_starts_with_expected() {27 Stream<String> actual = Stream.of("Yoda", "Luke", "Leia");28 assertThat(actual).startsWith("Yoda", "Luke");29 }30}31package org.assertj.core.api;32import org.junit.jupiter.api.Test;33import static org.assertj.core.api.Assertions.assertThat;34import java.util.stream.Stream;35class Assertions_assertThat_with_Stream_startsWith_Test {36 void should_pass_if_actual_starts_with_expected() {37 Stream<String> actual = Stream.of("Yoda", "Luke", "Leia");38 assertThat(actual).startsWith("Yoda", "Luke");39 }40}41package org.assertj.core.api;42import org.junit.jupiter.api.Test;43import static org.assertj.core.api.Assertions.assertThat;44import java.util.stream.Stream;45class Assertions_assertThat_with_Stream_startsWith_Test {46 void should_pass_if_actual_starts_with_expected() {47 Stream<String> actual = Stream.of("Yoda", "Luke", "Le
Assertions_assertThat_with_Stream_startsWith_Test
Using AI Code Generation
1package org.assertj.core.api;2import org.junit.jupiter.api.Test;3import static org.assertj.core.api.Assertions.assertThat;4import java.util.stream.Stream;5import org.junit.jupiter.api.DisplayName;6import org.junit.jupiter.api.DisplayNameGeneration;7import org.junit.jupiter.api.DisplayNameGenerator.ReplaceUnderscores;8@DisplayName("Assertions assertThat with Stream startsWith Test")9@DisplayNameGeneration(ReplaceUnderscores.class)10class Assertions_assertThat_with_Stream_startsWith_Test {11 void should_pass_if_actual_starts_with_sequence() {12 Stream<String> actual = Stream.of("Yoda", "Luke", "Leia");13 assertThat(actual).startsWith("Yoda", "Luke");14 }15}
Assertions_assertThat_with_Stream_startsWith_Test
Using AI Code Generation
1import org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test;2import org.assertj.core.api.Assertions;3import java.util.stream.Stream;4import org.junit.Test;5public class Assertions_assertThat_with_Stream_startsWith_Test {6 public void should_create_Assert() {7 Stream<?> actual = null;8 StreamAssert<?> assertions = Assertions.assertThat(actual);9 then(assertions).isNotNull();10 }11}12import org.assertj.core.api.StreamAssert;13import org.assertj.core.api.StreamAssertBaseTest;14import java.util.stream.Stream;15import org.junit.Test;16public class StreamAssert_isEmpty_Test extends StreamAssertBaseTest {17 protected StreamAssert<Object> invoke_api_method() {18 return assertions.isEmpty();19 }20 protected void verify_internal_effects() {21 verify(streams).assertEmpty(getInfo(assertions), getActual(assertions));22 }23}24import org.assertj.core.api.StreamAssert;25import org.assertj.core.api.StreamAssertBaseTest;26import java.util.stream.Stream;27import org.junit.Test;28public class StreamAssert_isEmpty_Test extends StreamAssertBaseTest {29 protected StreamAssert<Object> invoke_api_method() {30 return assertions.isEmpty();31 }32 protected void verify_internal_effects() {33 verify(streams).assertEmpty(getInfo(assertions), getActual(assertions));34 }35}36import org.assertj.core.api.StreamAssert;37import org.assertj.core.api.StreamAssertBaseTest;38import java.util.stream.Stream;39import org.junit.Test;40public class StreamAssert_isEmpty_Test extends StreamAssertBaseTest {41 protected StreamAssert<Object> invoke_api_method() {42 return assertions.isEmpty();43 }44 protected void verify_internal_effects() {45 verify(streams).assertEmpty(getInfo(assertions), getActual(assertions));46 }47}48import org.assertj.core.api.StreamAssert;49import org.assertj.core.api.StreamAssertBaseTest;50import java.util.stream.Stream;51import org.junit.Test;52public class StreamAssert_isEmpty_Test extends StreamAssertBaseTest {53 protected StreamAssert<Object> invoke_api_method()
Assertions_assertThat_with_Stream_startsWith_Test
Using AI Code Generation
1package org.assertj.core.api;2import java.util.stream.Stream;3import static org.assertj.core.api.Assertions.assertThat;4class Assertions_assertThat_with_Stream_startsWith_Test {5 Stream<String> stream = Stream.of("A", "B", "C");6 void example() {7 assertThat(stream).startsWith("A");8 assertThat(stream).startsWith("A", "B");9 assertThat(stream).startsWith(Stream.of("A"));10 assertThat(stream).startsWith(Stream.of("A", "B"));11 }12}13org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java[5, 1]: (extension) RegexpSingleline: Line has trailing whitespace14org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java[6, 1]: (extension) RegexpSingleline: Line has trailing whitespace15org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java[7, 1]: (extension) RegexpSingleline: Line has trailing whitespace16org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java[8, 1]: (extension) RegexpSingleline: Line has trailing whitespace17org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java[9, 1]: (extension) RegexpSingleline: Line has trailing whitespace18org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java[10, 1]: (extension) RegexpSingleline: Line has trailing whitespace19org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java[11, 1]: (extension) RegexpSingleline: Line has trailing whitespace20org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java[12, 1]: (extension) RegexpSingleline: Line has trailing whitespace21org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java[13, 1]: (extension) RegexpSingleline: Line has trailing whitespace22org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java[14, 1]: (extension) RegexpSingleline: Line has trailing whitespace23org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java[15, 1]: (extension) RegexpSingleline: Line has trailing whitespace24org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java[16, 1]: (extension) RegexpSingleline
Assertions_assertThat_with_Stream_startsWith_Test
Using AI Code Generation
1org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: package org.assertj.core.api;2org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.api.Assertions.assertThat;3org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.api.Assertions.assertThatNullPointerException;4org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.api.Assertions.catchThrowable;5org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.api.Assertions.fail;6org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.api.AssertionsForClassTypes.assertThatExceptionOfType;7org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.api.AssertionsForInterfaceTypes.assertThat;8org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.api.AssertionsForInterfaceTypes.assertThatNullPointerException;9org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.api.AssertionsForInterfaceTypes.catchThrowable;10org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.api.AssertionsForInterfaceTypes.fail;11org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.api.AssertionsForInterfaceTypes.assertThatExceptionOfType;12org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.util.AssertionsUtil.expectAssertionError;13org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.util.FailureMessages.actualIsNull;14org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.util.Lists.list;15org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.util.Sets.newLinkedHashSet;16org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.util.Sets.newTreeSet;17org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.util.Streams.stream;18org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.util.Sets.newHashSet;19org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test: import static org.assertj.core.util.Sets.newLinkedHashSet;
Assertions_assertThat_with_Stream_startsWith_Test
Using AI Code Generation
1org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: package org.assertj.core.api;2org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.assertThat;3org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.catchThrowable;4org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.within;5org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.withinPercentage;6org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.withPrecision;7org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.within;8org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.withinPercentage;9org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.withPrecision;10org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.within;11org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.withinPercentage;12org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.withPrecision;13org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.within;14org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.withinPercentage;15org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.withPrecision;16org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.within;17org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.withinPercentage;18org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.withPrecision;19org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import static org.assertj.core.api.Assertions.within;20org.assertj.core.api.Assertions_assertThat_with_Stream_startsWith_Test.java: import
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.
LambdaTest Learning Hubs:
- JUnit Tutorial
- TestNG Tutorial
- Webdriver Tutorial
- WebDriverIO Tutorial
- Protractor Tutorial
- Selenium 4 Tutorial
- Jenkins Tutorial
- NUnit Tutorial
- Jest Tutorial
- Playwright Tutorial
- Cypress Tutorial
- PyTest Tutorial
YouTube
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Run Assertj automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
