diff --git a/core-java/.gitignore b/core-java/.gitignore index 5adb0b8310..6ecc6405c2 100644 --- a/core-java/.gitignore +++ b/core-java/.gitignore @@ -13,4 +13,4 @@ *.ear # Files generated by integration tests -#*.txt \ No newline at end of file +*.txt \ No newline at end of file diff --git a/core-java/src/test/java/com/baeldung/java/reflection/ReflectionUnitTest.java b/core-java/src/test/java/com/baeldung/java/reflection/ReflectionUnitTest.java index e008616c72..0c090901e7 100644 --- a/core-java/src/test/java/com/baeldung/java/reflection/ReflectionUnitTest.java +++ b/core-java/src/test/java/com/baeldung/java/reflection/ReflectionUnitTest.java @@ -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 actualFieldNames = getFieldNames(fields); + final List 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 actualFields = getFieldNames(fields); + final List 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 actualMethods = getMethodNames(methods); + final Class animalClass = Class.forName("com.baeldung.java.reflection.Animal"); + final Method[] methods = animalClass.getDeclaredMethods(); + final List 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 methodNames = getMethodNames(methods); + final Class birdClass = Class.forName("com.baeldung.java.reflection.Bird"); + final Method[] methods = birdClass.getMethods(); + final List 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 actualMethodNames = getMethodNames(birdClass.getDeclaredMethods()); + final Class birdClass = Class.forName("com.baeldung.java.reflection.Bird"); + final List actualMethodNames = getMethodNames(birdClass.getDeclaredMethods()); - List expectedMethodNames = Arrays.asList("setWalks", "walks", "getSound", "eats"); + final List 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 getFieldNames(Field[] fields) { - List fieldNames = new ArrayList<>(); - for (Field field : fields) + final List fieldNames = new ArrayList<>(); + for (final Field field : fields) { fieldNames.add(field.getName()); + } return fieldNames; } private static List getMethodNames(Method[] methods) { - List methodNames = new ArrayList<>(); - for (Method method : methods) + final List methodNames = new ArrayList<>(); + for (final Method method : methods) { methodNames.add(method.getName()); + } return methodNames; } diff --git a/core-java/src/test/java/org/baeldung/java/JavaIoUnitTest.java b/core-java/src/test/java/org/baeldung/java/JavaIoUnitTest.java index 501f2ffca0..3ab8e1de91 100644 --- a/core-java/src/test/java/org/baeldung/java/JavaIoUnitTest.java +++ b/core-java/src/test/java/org/baeldung/java/JavaIoUnitTest.java @@ -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());