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minor fix

This commit is contained in:
DOHA 2016-10-28 20:16:35 +02:00
parent 622da702d0
commit 7fb6cc7900
3 changed files with 88 additions and 81 deletions
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2
core-java/.gitignore vendored
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@ -13,4 +13,4 @@
*.ear
# Files generated by integration tests
#*.txt
*.txt

165
core-java/src/test/java/com/baeldung/java/reflection/ReflectionUnitTest.java
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@ -1,32 +1,35 @@
package com.baeldung.java.reflection;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.ArrayList;
import static org.junit.Assert.*;
import org.junit.Test;
public class ReflectionUnitTest {
@Test
public void givenObject_whenGetsFieldNamesAtRuntime_thenCorrect() {
Object person = new Person();
Field[] fields = person.getClass().getDeclaredFields();
final Object person = new Person();
final Field[] fields = person.getClass().getDeclaredFields();
List<String> actualFieldNames = getFieldNames(fields);
final List<String> actualFieldNames = getFieldNames(fields);
assertTrue(Arrays.asList("name", "age").containsAll(actualFieldNames));
}
@Test
public void givenObject_whenGetsClassName_thenCorrect() {
Object goat = new Goat("goat");
Class<?> clazz = goat.getClass();
final Object goat = new Goat("goat");
final Class<?> clazz = goat.getClass();
assertEquals("Goat", clazz.getSimpleName());
assertEquals("com.baeldung.java.reflection.Goat", clazz.getName());
@ -35,7 +38,7 @@ public class ReflectionUnitTest {
@Test
public void givenClassName_whenCreatesObject_thenCorrect() throws ClassNotFoundException {
Class<?> clazz = Class.forName("com.baeldung.java.reflection.Goat");
final Class<?> clazz = Class.forName("com.baeldung.java.reflection.Goat");
assertEquals("Goat", clazz.getSimpleName());
assertEquals("com.baeldung.java.reflection.Goat", clazz.getName());
@ -44,10 +47,10 @@ public class ReflectionUnitTest {
@Test
public void givenClass_whenRecognisesModifiers_thenCorrect() throws ClassNotFoundException {
Class<?> goatClass = Class.forName("com.baeldung.java.reflection.Goat");
Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
int goatMods = goatClass.getModifiers();
int animalMods = animalClass.getModifiers();
final Class<?> goatClass = Class.forName("com.baeldung.java.reflection.Goat");
final Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
final int goatMods = goatClass.getModifiers();
final int animalMods = animalClass.getModifiers();
assertTrue(Modifier.isPublic(goatMods));
assertTrue(Modifier.isAbstract(animalMods));
@ -56,20 +59,20 @@ public class ReflectionUnitTest {
@Test
public void givenClass_whenGetsPackageInfo_thenCorrect() {
Goat goat = new Goat("goat");
Class<?> goatClass = goat.getClass();
Package pkg = goatClass.getPackage();
final Goat goat = new Goat("goat");
final Class<?> goatClass = goat.getClass();
final Package pkg = goatClass.getPackage();
assertEquals("com.baeldung.java.reflection", pkg.getName());
}
@Test
public void givenClass_whenGetsSuperClass_thenCorrect() {
Goat goat = new Goat("goat");
String str = "any string";
final Goat goat = new Goat("goat");
final String str = "any string";
Class<?> goatClass = goat.getClass();
Class<?> goatSuperClass = goatClass.getSuperclass();
final Class<?> goatClass = goat.getClass();
final Class<?> goatSuperClass = goatClass.getSuperclass();
assertEquals("Animal", goatSuperClass.getSimpleName());
assertEquals("Object", str.getClass().getSuperclass().getSimpleName());
@ -78,10 +81,10 @@ public class ReflectionUnitTest {
@Test
public void givenClass_whenGetsImplementedInterfaces_thenCorrect() throws ClassNotFoundException {
Class<?> goatClass = Class.forName("com.baeldung.java.reflection.Goat");
Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
Class<?>[] goatInterfaces = goatClass.getInterfaces();
Class<?>[] animalInterfaces = animalClass.getInterfaces();
final Class<?> goatClass = Class.forName("com.baeldung.java.reflection.Goat");
final Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
final Class<?>[] goatInterfaces = goatClass.getInterfaces();
final Class<?>[] animalInterfaces = animalClass.getInterfaces();
assertEquals(1, goatInterfaces.length);
assertEquals(1, animalInterfaces.length);
@ -91,8 +94,8 @@ public class ReflectionUnitTest {
@Test
public void givenClass_whenGetsConstructor_thenCorrect() throws ClassNotFoundException {
Class<?> goatClass = Class.forName("com.baeldung.java.reflection.Goat");
Constructor<?>[] constructors = goatClass.getConstructors();
final Class<?> goatClass = Class.forName("com.baeldung.java.reflection.Goat");
final Constructor<?>[] constructors = goatClass.getConstructors();
assertEquals(1, constructors.length);
assertEquals("com.baeldung.java.reflection.Goat", constructors[0].getName());
@ -100,10 +103,10 @@ public class ReflectionUnitTest {
@Test
public void givenClass_whenGetsFields_thenCorrect() throws ClassNotFoundException {
Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
Field[] fields = animalClass.getDeclaredFields();
final Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
final Field[] fields = animalClass.getDeclaredFields();
List<String> actualFields = getFieldNames(fields);
final List<String> actualFields = getFieldNames(fields);
assertEquals(2, actualFields.size());
assertTrue(actualFields.containsAll(Arrays.asList("name", "CATEGORY")));
@ -111,41 +114,41 @@ public class ReflectionUnitTest {
@Test
public void givenClass_whenGetsMethods_thenCorrect() throws ClassNotFoundException {
Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
Method[] methods = animalClass.getDeclaredMethods();
List<String> actualMethods = getMethodNames(methods);
final Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
final Method[] methods = animalClass.getDeclaredMethods();
final List<String> actualMethods = getMethodNames(methods);
assertEquals(4, actualMethods.size());
assertEquals(3, actualMethods.size());
assertTrue(actualMethods.containsAll(Arrays.asList("getName", "setName", "getSound")));
}
@Test
public void givenClass_whenGetsAllConstructors_thenCorrect() throws ClassNotFoundException {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Constructor<?>[] constructors = birdClass.getConstructors();
final Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
final Constructor<?>[] constructors = birdClass.getConstructors();
assertEquals(3, constructors.length);
}
@Test
public void givenClass_whenGetsEachConstructorByParamTypes_thenCorrect() throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Constructor<?> cons1 = birdClass.getConstructor();
Constructor<?> cons2 = birdClass.getConstructor(String.class);
Constructor<?> cons3 = birdClass.getConstructor(String.class, boolean.class);
final Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
birdClass.getConstructor();
birdClass.getConstructor(String.class);
birdClass.getConstructor(String.class, boolean.class);
}
@Test
public void givenClass_whenInstantiatesObjectsAtRuntime_thenCorrect() throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
final Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Constructor<?> cons1 = birdClass.getConstructor();
Constructor<?> cons2 = birdClass.getConstructor(String.class);
Constructor<?> cons3 = birdClass.getConstructor(String.class, boolean.class);
final Constructor<?> cons1 = birdClass.getConstructor();
final Constructor<?> cons2 = birdClass.getConstructor(String.class);
final Constructor<?> cons3 = birdClass.getConstructor(String.class, boolean.class);
Bird bird1 = (Bird) cons1.newInstance();
Bird bird2 = (Bird) cons2.newInstance("Weaver bird");
Bird bird3 = (Bird) cons3.newInstance("dove", true);
final Bird bird1 = (Bird) cons1.newInstance();
final Bird bird2 = (Bird) cons2.newInstance("Weaver bird");
final Bird bird3 = (Bird) cons3.newInstance("dove", true);
assertEquals("bird", bird1.getName());
assertEquals("Weaver bird", bird2.getName());
@ -156,8 +159,8 @@ public class ReflectionUnitTest {
@Test
public void givenClass_whenGetsPublicFields_thenCorrect() throws ClassNotFoundException {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Field[] fields = birdClass.getFields();
final Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
final Field[] fields = birdClass.getFields();
assertEquals(1, fields.length);
assertEquals("CATEGORY", fields[0].getName());
@ -165,40 +168,40 @@ public class ReflectionUnitTest {
@Test
public void givenClass_whenGetsPublicFieldByName_thenCorrect() throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Field field = birdClass.getField("CATEGORY");
final Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
final Field field = birdClass.getField("CATEGORY");
assertEquals("CATEGORY", field.getName());
}
@Test
public void givenClass_whenGetsDeclaredFields_thenCorrect() throws ClassNotFoundException {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Field[] fields = birdClass.getDeclaredFields();
final Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
final Field[] fields = birdClass.getDeclaredFields();
assertEquals(1, fields.length);
assertEquals("walks", fields[0].getName());
}
@Test
public void givenClass_whenGetsFieldsByName_thenCorrect() throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Field field = birdClass.getDeclaredField("walks");
final Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
final Field field = birdClass.getDeclaredField("walks");
assertEquals("walks", field.getName());
}
@Test
public void givenClassField_whenGetsType_thenCorrect() throws Exception {
Field field = Class.forName("com.baeldung.java.reflection.Bird").getDeclaredField("walks");
Class<?> fieldClass = field.getType();
final Field field = Class.forName("com.baeldung.java.reflection.Bird").getDeclaredField("walks");
final Class<?> fieldClass = field.getType();
assertEquals("boolean", fieldClass.getSimpleName());
}
@Test
public void givenClassField_whenSetsAndGetsValue_thenCorrect() throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Bird bird = (Bird) birdClass.newInstance();
Field field = birdClass.getDeclaredField("walks");
final Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
final Bird bird = (Bird) birdClass.newInstance();
final Field field = birdClass.getDeclaredField("walks");
field.setAccessible(true);
assertFalse(field.getBoolean(bird));
@ -213,8 +216,8 @@ public class ReflectionUnitTest {
@Test
public void givenClassField_whenGetsAndSetsWithNull_thenCorrect() throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Field field = birdClass.getField("CATEGORY");
final Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
final Field field = birdClass.getField("CATEGORY");
field.setAccessible(true);
assertEquals("domestic", field.get(null));
@ -222,9 +225,9 @@ public class ReflectionUnitTest {
@Test
public void givenClass_whenGetsAllPublicMethods_thenCorrect() throws ClassNotFoundException {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Method[] methods = birdClass.getMethods();
List<String> methodNames = getMethodNames(methods);
final Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
final Method[] methods = birdClass.getMethods();
final List<String> methodNames = getMethodNames(methods);
assertTrue(methodNames.containsAll(Arrays.asList("equals", "notifyAll", "hashCode", "walks", "eats", "toString")));
@ -232,10 +235,10 @@ public class ReflectionUnitTest {
@Test
public void givenClass_whenGetsOnlyDeclaredMethods_thenCorrect() throws ClassNotFoundException {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
List<String> actualMethodNames = getMethodNames(birdClass.getDeclaredMethods());
final Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
final List<String> actualMethodNames = getMethodNames(birdClass.getDeclaredMethods());
List<String> expectedMethodNames = Arrays.asList("setWalks", "walks", "getSound", "eats");
final List<String> expectedMethodNames = Arrays.asList("setWalks", "walks", "getSound", "eats");
assertEquals(expectedMethodNames.size(), actualMethodNames.size());
assertTrue(expectedMethodNames.containsAll(actualMethodNames));
@ -245,9 +248,9 @@ public class ReflectionUnitTest {
@Test
public void givenMethodName_whenGetsMethod_thenCorrect() throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Method walksMethod = birdClass.getDeclaredMethod("walks");
Method setWalksMethod = birdClass.getDeclaredMethod("setWalks", boolean.class);
final Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
final Method walksMethod = birdClass.getDeclaredMethod("walks");
final Method setWalksMethod = birdClass.getDeclaredMethod("setWalks", boolean.class);
assertFalse(walksMethod.isAccessible());
assertFalse(setWalksMethod.isAccessible());
@ -262,17 +265,17 @@ public class ReflectionUnitTest {
@Test
public void givenMethod_whenInvokes_thenCorrect() throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Bird bird = (Bird) birdClass.newInstance();
Method setWalksMethod = birdClass.getDeclaredMethod("setWalks", boolean.class);
Method walksMethod = birdClass.getDeclaredMethod("walks");
boolean walks = (boolean) walksMethod.invoke(bird);
final Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
final Bird bird = (Bird) birdClass.newInstance();
final Method setWalksMethod = birdClass.getDeclaredMethod("setWalks", boolean.class);
final Method walksMethod = birdClass.getDeclaredMethod("walks");
final boolean walks = (boolean) walksMethod.invoke(bird);
assertFalse(walks);
assertFalse(bird.walks());
setWalksMethod.invoke(bird, true);
boolean walks2 = (boolean) walksMethod.invoke(bird);
final boolean walks2 = (boolean) walksMethod.invoke(bird);
assertTrue(walks2);
assertTrue(bird.walks());
@ -280,17 +283,19 @@ public class ReflectionUnitTest {
}
private static List<String> getFieldNames(Field[] fields) {
List<String> fieldNames = new ArrayList<>();
for (Field field : fields)
final List<String> fieldNames = new ArrayList<>();
for (final Field field : fields) {
fieldNames.add(field.getName());
}
return fieldNames;
}
private static List<String> getMethodNames(Method[] methods) {
List<String> methodNames = new ArrayList<>();
for (Method method : methods)
final List<String> methodNames = new ArrayList<>();
for (final Method method : methods) {
methodNames.add(method.getName());
}
return methodNames;
}

2
core-java/src/test/java/org/baeldung/java/JavaIoUnitTest.java
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@ -7,6 +7,7 @@ import java.util.Scanner;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.LineIterator;
import org.junit.Ignore;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -14,6 +15,7 @@ import org.slf4j.LoggerFactory;
import com.google.common.base.Charsets;
import com.google.common.io.Files;
@Ignore("need large file for testing")
public class JavaIoUnitTest {
protected final Logger logger = LoggerFactory.getLogger(getClass());