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reformat the files using intellij-baeldung-style.xml

This commit is contained in:
hajk1 2024-04-07 18:25:13 +03:30
parent 4bdfd9699f
commit a1e28048a6
1 changed files with 44 additions and 49 deletions
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93
core-java-modules/core-java-collections-6/src/test/java/com/baeldung/iteratorvsforeach/IteratorVsForeachUnitTest.java
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@ -8,6 +8,7 @@ import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.stream.Stream;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
@ -15,55 +16,49 @@ import org.junit.jupiter.params.provider.MethodSource;
class IteratorVsForeachUnitTest {
private static Stream<Arguments> listProvider() {
return Stream.of(
Arguments.of(
List.of("String1", "String2", "unwanted"),
List.of("String1", "String2"))
);
}
@Test
public void givenEmptyCollection_whenUsingForEach_thenNoElementsAreIterated() {
List<String> names = Collections.emptyList();
StringBuilder stringBuilder = new StringBuilder();
names.forEach(stringBuilder::append);
assertEquals("", stringBuilder.toString());
}
@ParameterizedTest
@MethodSource("listProvider")
public void givenCollectionWithElements_whenRemovingElementDuringForEachIteration_thenElementIsRemoved(
List<String> input, List<String> expected) {
List<String> mutableList = new ArrayList<>(input);
// Separate collection for items to be removed
List<String> toRemove = new ArrayList<>();
// Using forEach to identify items to remove
input.forEach(item -> {
if (item.equals("unwanted")) {
toRemove.add(item);
}
});
// Removing the identified items from the original list
mutableList.removeAll(toRemove);
assertIterableEquals(expected, mutableList);
}
@ParameterizedTest
@MethodSource("listProvider")
public void givenCollectionWithElements_whenRemovingElementDuringIteratorIteration_thenElementIsRemoved(
List<String> input, List<String> expected) {
List<String> mutableList = new ArrayList<>(input);
Iterator<String> it = mutableList.iterator();
while (it.hasNext()) {
String item = it.next();
if (item.equals("unwanted")) {
it.remove(); // Safely remove item
}
private static Stream<Arguments> listProvider() {
return Stream.of(Arguments.of(List.of("String1", "String2", "unwanted"), List.of("String1", "String2")));
}
@Test
public void givenEmptyCollection_whenUsingForEach_thenNoElementsAreIterated() {
List<String> names = Collections.emptyList();
StringBuilder stringBuilder = new StringBuilder();
names.forEach(stringBuilder::append);
assertEquals("", stringBuilder.toString());
}
@ParameterizedTest
@MethodSource("listProvider")
public void givenCollectionWithElements_whenRemovingElementDuringForEachIteration_thenElementIsRemoved(List<String> input, List<String> expected) {
List<String> mutableList = new ArrayList<>(input);
// Separate collection for items to be removed
List<String> toRemove = new ArrayList<>();
// Using forEach to identify items to remove
input.forEach(item -> {
if (item.equals("unwanted")) {
toRemove.add(item);
}
});
// Removing the identified items from the original list
mutableList.removeAll(toRemove);
assertIterableEquals(expected, mutableList);
}
@ParameterizedTest
@MethodSource("listProvider")
public void givenCollectionWithElements_whenRemovingElementDuringIteratorIteration_thenElementIsRemoved(List<String> input, List<String> expected) {
List<String> mutableList = new ArrayList<>(input);
Iterator<String> it = mutableList.iterator();
while (it.hasNext()) {
String item = it.next();
if (item.equals("unwanted")) {
it.remove(); // Safely remove item
}
}
assertIterableEquals(expected, mutableList);
}
assertIterableEquals(expected, mutableList);
}
}