Formatting Changes for Java 5074 (#11206)

* Formatting Changes for Java 5074

Changed line change indentation to 2 spaces

* Rename StreamToListComparisonWithCollectorsToListUnitTest to StreamToListComparisonWithCollectorsToListUnitTest.java
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Trying something new 2021-09-18 08:50:24 +05:30 committed by GitHub
parent 2a68c0e2bb
commit 3260466f5b
1 changed files with 128 additions and 0 deletions

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package com.baeldung.streams;
import java.util.List;
import java.util.Locale;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
public class StreamToListComparisonWithCollectorsToListUnitTest {
@Test
public void whenAddingtoCollectToList_thenSuccess() {
List<String> result = Stream.of(Locale.getISOCountries())
.collect(Collectors.toList());
Assertions.assertDoesNotThrow(() -> {
result.add("test");
});
}
@Test
public void whenSortingtoCollectToList_thenSuccess() {
List<String> result = Stream.of(Locale.getISOCountries())
.collect(Collectors.toList());
Assertions.assertDoesNotThrow(() -> {
result.sort(String::compareToIgnoreCase);
});
}
@Test
public void whenAddingCollectUnmodifiableToList_thenException() {
List<String> result = Stream.of(Locale.getISOCountries())
.collect(Collectors.toUnmodifiableList());
Assertions.assertThrows(UnsupportedOperationException.class, () -> {
result.add("test");
});
}
@Test
public void whenSortingCollectUnmodifiableToList_thenSortException() {
List<String> result = Stream.of(Locale.getISOCountries())
.collect(Collectors.toUnmodifiableList());
Assertions.assertThrows(UnsupportedOperationException.class, () -> {
result.sort(String::compareToIgnoreCase);
});
}
@Test
public void whenAddingStreamToList_thenException() {
List<String> result = Stream.of(Locale.getISOCountries())
.toList();
Assertions.assertThrows(UnsupportedOperationException.class, () -> {
result.add("test");
});
}
@Test
public void whenSortingStreamToList_thenException() {
List<String> result = Stream.of(Locale.getISOCountries())
.toList();
Assertions.assertThrows(UnsupportedOperationException.class, () -> {
result.sort(String::compareToIgnoreCase);
});
}
@Test
public void whenComparingStreamToList_withCollectToList_thenEqual() {
List<String> streamToList = Stream.of(Locale.getISOCountries())
.toList();
List<String> collectToList = Stream.of(Locale.getISOCountries())
.collect(Collectors.toList());
Assertions.assertEquals(streamToList, collectToList);
}
@Test
public void whenComparingStreamToList_withUnmodifiedCollectToList_thenEqual() {
List<String> streamToList = Stream.of(Locale.getISOCountries())
.toList();
List<String> collectToUnmodifiableList = Stream.of(Locale.getISOCountries())
.collect(Collectors.toUnmodifiableList());
Assertions.assertEquals(streamToList, collectToUnmodifiableList);
}
@Test
public void whenNullCollectorsToList_thenSuccess() {
Assertions.assertDoesNotThrow(() -> {
Stream.of(null, null)
.collect(Collectors.toList());
});
}
@Test
public void whenNullCollectorsUnmodifiableToList_thenException() {
Assertions.assertThrows(NullPointerException.class, () -> {
Stream.of(null, null)
.collect(Collectors.toUnmodifiableList());
});
}
@Test
public void whenNullStreamToList_thenSuccess() {
Assertions.assertDoesNotThrow(() -> {
Stream.of(null, null)
.toList();
});
}
}