// Copyright (c) 2003-2014, Jodd Team (jodd.org). All Rights Reserved.
package jodd.paramo;
import jodd.asm.TraceSignatureVisitor;
import jodd.asm5.signature.SignatureReader;
import jodd.paramo.data.Foo;
import jodd.paramo.data.Generic;
import jodd.paramo.data.NonGeneric;
import jodd.util.ReflectUtil;
import org.junit.Test;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
public class ParamoTest {
private String[] resolveParameterNames(MethodParameter[] methodParameters) {
String[] result = new String[methodParameters.length];
for (
int i = 0, methodParametersLength = methodParameters.length;
i < methodParametersLength; i++) {
MethodParameter methodParameter = methodParameters[i];
result[i] = methodParameter.getName();
}
return result;
}
@Test
public void testConstructor() throws NoSuchMethodException {
Constructor c = Foo.class.getConstructor(String.class);
MethodParameter[] mps = Paramo.resolveParameters(c);
String[] s = resolveParameterNames(mps);
assertEquals(1, s.length);
assertEquals("something", s[0]);
}
@Test
public void testOneParam() throws NoSuchMethodException {
Method m = Foo.class.getMethod("one", String.class);
MethodParameter[] mps = Paramo.resolveParameters(m);
String[] s = resolveParameterNames(mps);
assertEquals(1, s.length);
assertEquals("foo", s[0]);
}
@Test
public void testTwoParams() throws NoSuchMethodException {
Method m = Foo.class.getMethod("two", String.class, String.class);
MethodParameter[] mps = Paramo.resolveParameters(m);
String[] s = resolveParameterNames(mps);
assertEquals(2, s.length);
assertEquals("username", s[0]);
assertEquals("password", s[1]);
}
@Test
public void testNoParams() throws NoSuchMethodException {
Method m = Foo.class.getMethod("hello");
MethodParameter[] mps = Paramo.resolveParameters(m);
assertNotNull(mps);
assertEquals(0, mps.length);
}
@Test
public void testArray() throws NoSuchMethodException {
Method m = Foo.class.getMethod("array", String.class, Integer[].class, float[].class);
MethodParameter[] mps = Paramo.resolveParameters(m);
String[] s = resolveParameterNames(mps);
assertEquals(3, s.length);
assertEquals("foo", s[0]);
assertEquals("ints", s[1]);
assertEquals("floats", s[2]);
}
@Test
public void testPrimitives() throws NoSuchMethodException {
Method m = ReflectUtil.findDeclaredMethod(Foo.class, "primitives");
MethodParameter[] mps = Paramo.resolveParameters(m);
String[] s = resolveParameterNames(mps);
assertEquals(8, s.length);
assertEquals("i", s[0]);
assertEquals("l", s[1]);
assertEquals("f", s[2]);
assertEquals("d", s[3]);
assertEquals("s", s[4]);
assertEquals("b", s[5]);
assertEquals("c", s[6]);
assertEquals("y", s[7]);
}
@Test
public void testPrimitivesArrays1() throws NoSuchMethodException {
Method m = ReflectUtil.findDeclaredMethod(Foo.class, "primarr1");
MethodParameter[] mps = Paramo.resolveParameters(m);
String[] s = resolveParameterNames(mps);
assertEquals(2, s.length);
assertEquals("one", s[0]);
assertEquals("two", s[1]);
}
@Test
public void testPrimitivesArrays2() throws NoSuchMethodException {
Method m = ReflectUtil.findDeclaredMethod(Foo.class, "primarr2");
MethodParameter[] mps = Paramo.resolveParameters(m);
String[] s = resolveParameterNames(mps);
assertEquals(6, s.length);
assertEquals("i", s[0]);
assertEquals("l", s[1]);
assertEquals("f", s[2]);
assertEquals("d", s[3]);
assertEquals("b", s[4]);
assertEquals("c", s[5]);
}
@Test
public void testPrimitivesArrays3() throws NoSuchMethodException {
Method m = ReflectUtil.findDeclaredMethod(Foo.class, "primarrShortByte");
MethodParameter[] mps = Paramo.resolveParameters(m);
String[] s = resolveParameterNames(mps);
assertEquals(3, s.length);
assertEquals("s", s[0]);
assertEquals("y", s[1]);
assertEquals("somethingElse", s[2]);
}
@Test
public void testNonGeneric() {
Method m = ReflectUtil.findDeclaredMethod(NonGeneric.class, "one");
MethodParameter[] mps = Paramo.resolveParameters(m);
assertEquals(2, mps.length);
assertEquals("foo", mps[0].getName());
assertEquals("Ljava/util/Map;", mps[0].getSignature());
assertEquals("aLong", mps[1].getName());
assertEquals("Ljava/lang/Long;", mps[1].getSignature());
}
@Test
public void testGeneric() {
Method m = ReflectUtil.findDeclaredMethod(Generic.class, "one");
MethodParameter[] mps = Paramo.resolveParameters(m);
assertEquals(2, mps.length);
assertEquals("foo", mps[0].getName());
assertEquals("Ljava/util/Map<Ljava/lang/String;Ljava/lang/Long;>;", mps[0].getSignature());
assertEquals("aLong", mps[1].getName());
assertEquals("Ljava/lang/Long;", mps[1].getSignature());
m = ReflectUtil.findDeclaredMethod(Generic.class, "two");
mps = Paramo.resolveParameters(m);
assertEquals(1, mps.length);
assertEquals("zzz", mps[0].getName());
assertEquals("Ljava/util/Map<Ljava/lang/String;Ljodd/paramo/data/Bar<Ljava/lang/Long;>;>;", mps[0].getSignature());
}
@Test
public void testGenericsWildcards() {
Method m = ReflectUtil.findDeclaredMethod(Generic.class, "three");
MethodParameter[] mps = Paramo.resolveParameters(m);
assertEquals(3, mps.length);
assertEquals("comparable", mps[0].getName());
assertEquals("Ljava/lang/Comparable<*>;", mps[0].getSignature());
assertEquals("(java.lang.Comparable<?>)", resolveSignature(mps[0].getSignature()));
assertEquals("iterator", mps[1].getName());
assertEquals("Ljava/util/Iterator<+Ljava/lang/CharSequence;>;", mps[1].getSignature());
assertEquals("(java.util.Iterator<? extends java.lang.CharSequence>)", resolveSignature(mps[1].getSignature()));
assertEquals("list", mps[2].getName());
assertEquals("Ljava/util/List<-Ljava/lang/Integer;>;", mps[2].getSignature());
assertEquals("(java.util.List<? super java.lang.Integer>)", resolveSignature(mps[2].getSignature()));
}
private String resolveSignature(String signature) {
SignatureReader signatureReader = new SignatureReader("(" + signature + ")V");
StringBuilder sb = new StringBuilder();
signatureReader.accept(new TraceSignatureVisitor(sb, true));
return sb.toString();
}
}