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BAEL 533: Pull request for Java 9 Convenience Factory Methods for Collections (#1078) 

* remove verbose from compiler plugin, change project build encoding to UTF-8

* BAEL - 533 - convenience factory methods for collections test files
This commit is contained in:
Vivek Kumar 2017-02-01 01:59:02 +05:30 committed by Grzegorz Piwowarek
parent d07136065a
commit a0781d1d88
4 changed files with 186 additions and 1 deletions
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4
core-java-9/pom.xml
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@ -57,7 +57,6 @@
<configuration>
<source>1.9</source>
<target>1.9</target>
<verbose>true</verbose>
</configuration>
</plugin>
@ -72,6 +71,9 @@
</build>
<properties>
<!-- project build encoding -->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<!-- logging -->
<org.slf4j.version>1.7.21</org.slf4j.version>

61
core-java-9/src/test/java/com/baeldung/java9/language/collections/ListFactoryMethodsTest.java Normal file
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@ -0,0 +1,61 @@
package com.baeldung.java9.language.collections;
import java.util.ArrayList;
import java.util.List;
import org.junit.Test;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
public class ListFactoryMethodsTest {
@Test
public void whenListCreated_thenSuccess() {
List<String> traditionlList = new ArrayList<String>();
traditionlList.add("foo");
traditionlList.add("bar");
traditionlList.add("baz");
List<String> factoryCreatedList = List.of("foo", "bar", "baz");
assertEquals(traditionlList, factoryCreatedList);
}
@Test(expected = UnsupportedOperationException.class)
public void onElemAdd_ifUnSupportedOpExpnThrown_thenSuccess() {
List<String> list = List.of("foo", "bar");
list.add("baz");
}
@Test(expected = UnsupportedOperationException.class)
public void onElemModify_ifUnSupportedOpExpnThrown_thenSuccess() {
List<String> list = List.of("foo", "bar");
list.set(0, "baz");
}
@Test(expected = UnsupportedOperationException.class)
public void onElemRemove_ifUnSupportedOpExpnThrown_thenSuccess() {
List<String> list = List.of("foo", "bar");
list.remove("foo");
}
@Test(expected = NullPointerException.class)
public void onNullElem_ifNullPtrExpnThrown_thenSuccess() {
List.of("foo", "bar", null);
}
@Test
public void ifNotArrayList_thenSuccess() {
List<String> list = List.of("foo", "bar");
assertFalse(list instanceof ArrayList);
}
@Test
public void ifListSizeIsOne_thenSuccess() {
int[] arr = { 1, 2, 3, 4 };
List<int[]> list = List.of(arr);
assertEquals(1, list.size());
assertArrayEquals(arr, list.get(0));
}
}

62
core-java-9/src/test/java/com/baeldung/java9/language/collections/MapFactoryMethodsTest.java Normal file
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@ -0,0 +1,62 @@
package com.baeldung.java9.language.collections;
import java.util.HashMap;
import java.util.Map;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
public class MapFactoryMethodsTest {
@Test
public void whenMapCreated_thenSuccess() {
Map<String, String> traditionlMap = new HashMap<String, String>();
traditionlMap.put("foo", "a");
traditionlMap.put("bar", "b");
traditionlMap.put("baz", "c");
Map<String, String> factoryCreatedMap = Map.of("foo", "a", "bar", "b", "baz", "c");
assertEquals(traditionlMap, factoryCreatedMap);
}
@Test(expected = UnsupportedOperationException.class)
public void onElemAdd_ifUnSupportedOpExpnThrown_thenSuccess() {
Map<String, String> map = Map.of("foo", "a", "bar", "b");
map.put("baz", "c");
}
@Test(expected = UnsupportedOperationException.class)
public void onElemModify_ifUnSupportedOpExpnThrown_thenSuccess() {
Map<String, String> map = Map.of("foo", "a", "bar", "b");
map.put("foo", "c");
}
@Test(expected = UnsupportedOperationException.class)
public void onElemRemove_ifUnSupportedOpExpnThrown_thenSuccess() {
Map<String, String> map = Map.of("foo", "a", "bar", "b");
map.remove("foo");
}
@Test(expected = IllegalArgumentException.class)
public void givenDuplicateKeys_ifIllegalArgExp_thenSuccess() {
Map.of("foo", "a", "foo", "b");
}
@Test(expected = NullPointerException.class)
public void onNullKey_ifNullPtrExp_thenSuccess() {
Map.of("foo", "a", null, "b");
}
@Test(expected = NullPointerException.class)
public void onNullValue_ifNullPtrExp_thenSuccess() {
Map.of("foo", "a", "bar", null);
}
@Test
public void ifNotHashMap_thenSuccess() {
Map<String, String> map = Map.of("foo", "a", "bar", "b");
assertFalse(map instanceof HashMap);
}
}

60
core-java-9/src/test/java/com/baeldung/java9/language/collections/SetFactoryMethodsTest.java Normal file
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@ -0,0 +1,60 @@
package com.baeldung.java9.language.collections;
import java.util.HashSet;
import java.util.Set;
import org.junit.Test;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
public class SetFactoryMethodsTest {
@Test
public void whenSetCreated_thenSuccess() {
Set<String> traditionlSet = new HashSet<String>();
traditionlSet.add("foo");
traditionlSet.add("bar");
traditionlSet.add("baz");
Set<String> factoryCreatedSet = Set.of("foo", "bar", "baz");
assertEquals(traditionlSet, factoryCreatedSet);
}
@Test(expected = IllegalArgumentException.class)
public void onDuplicateElem_IfIllegalArgExp_thenSuccess() {
Set.of("foo", "bar", "baz", "foo");
}
@Test(expected = UnsupportedOperationException.class)
public void onElemAdd_ifUnSupportedOpExpnThrown_thenSuccess() {
Set<String> set = Set.of("foo", "bar");
set.add("baz");
}
@Test(expected = UnsupportedOperationException.class)
public void onElemRemove_ifUnSupportedOpExpnThrown_thenSuccess() {
Set<String> set = Set.of("foo", "bar", "baz");
set.remove("foo");
}
@Test(expected = NullPointerException.class)
public void onNullElem_ifNullPtrExpnThrown_thenSuccess() {
Set.of("foo", "bar", null);
}
@Test
public void ifNotHashSet_thenSuccess() {
Set<String> list = Set.of("foo", "bar");
assertFalse(list instanceof HashSet);
}
@Test
public void ifSetSizeIsOne_thenSuccess() {
int[] arr = { 1, 2, 3, 4 };
Set<int[]> set = Set.of(arr);
assertEquals(1, set.size());
assertArrayEquals(arr, set.iterator().next());
}
}