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Second commit for TDD List implementation

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Nguyen Nam Thai
2018-02-27 08:55:16 +07:00
parent a6d3ddd38f
commit c7e0852449
2 changed files with 105 additions and 110 deletions
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92
core-java/src/test/java/com/baeldung/java/list/CustomListUnitTest.java
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@@ -14,6 +14,58 @@ import java.util.List;
import org.junit.Test;
public class CustomListUnitTest {
@Test
public void givenEmptyList_whenIsEmpty_thenTrueIsReturned() {
List<Object> list = new CustomList<>();
assertTrue(list.isEmpty());
}
@Test
public void givenNonEmptyList_whenIsEmpty_thenFalseIsReturned() {
List<Object> list = new CustomList<>();
list.add(null);
assertFalse(list.isEmpty());
}
@Test
public void givenListWithAnElement_whenSize_thenOneIsReturned() {
List<Object> list = new CustomList<>();
list.add(null);
assertEquals(1, list.size());
}
@Test
public void givenListWithAnElement_whenGet_thenThatElementIsReturned() {
List<Object> list = new CustomList<>();
list.add("baeldung");
Object element = list.get(0);
assertEquals("baeldung", element);
}
@Test
public void givenEmptyList_whenElementIsAdded_thenGetReturnsThatElement() {
List<Object> list = new CustomList<>();
boolean succeeded = list.add(null);
assertTrue(succeeded);
}
@Test
public void givenListWithAnElement_whenAnotherIsAdded_thenGetReturnsBoth() {
List<Object> list = new CustomList<>();
list.add("baeldung");
list.add(".com");
Object element1 = list.get(0);
Object element2 = list.get(1);
assertEquals("baeldung", element1);
assertEquals(".com", element2);
}
@Test(expected = UnsupportedOperationException.class)
public void whenAddToSpecifiedIndex_thenExceptionIsThrown() {
new CustomList<>().add(0, null);
@@ -64,44 +116,6 @@ public class CustomListUnitTest {
list.retainAll(collection);
}
@Test
public void givenEmptyList_whenSize_thenZeroIsReturned() {
List<Object> list = new CustomList<>();
assertEquals(0, list.size());
}
@Test
public void givenEmptyList_whenIsEmpty_thenTrueIsReturned() {
List<Object> list = new CustomList<>();
assertTrue(list.isEmpty());
}
@Test
public void givenEmptyList_whenElementIsAdded_thenGetReturnsThatElement() {
List<Object> list = new CustomList<>();
boolean succeeded = list.add("baeldung");
Object element = list.get(0);
assertTrue(succeeded);
assertEquals("baeldung", element);
}
@Test
public void givenListWithAnElement_whenAnotherIsAdded_thenGetReturnsBoth() {
List<Object> list = new CustomList<>();
boolean succeeded1 = list.add("baeldung");
boolean succeeded2 = list.add(".com");
Object element1 = list.get(0);
Object element2 = list.get(1);
assertTrue(succeeded1);
assertTrue(succeeded2);
assertEquals("baeldung", element1);
assertEquals(".com", element2);
}
@Test
public void givenEmptyList_whenContains_thenFalseIsReturned() {
List<Object> list = new CustomList<>();
@@ -271,7 +285,7 @@ public class CustomListUnitTest {
}
@Test
public void whenIteratorNextIsCalledTwice_thenTheSecondReturnsFalse() {
public void whenIteratorHasNextIsCalledTwice_thenTheSecondReturnsFalse() {
List<Object> list = new CustomList<>();
list.add("baeldung");
Iterator<Object> iterator = list.iterator();