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/*******************************************************************************
* Copyright (c) 2009, 2021 Mountainminds GmbH & Co. KG and Contributors
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Evgeny Mandrikov - initial API and implementation
*
*******************************************************************************/
package org.jacoco.core.internal.analysis.filter;
import org.jacoco.core.internal.instr.InstrSupport;
import org.junit.Test;
import org.objectweb.asm.Label;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.tree.MethodNode;
/**
* Unit test for {@link KotlinDefaultArgumentsFilter}.
*/
public class KotlinDefaultArgumentsFilterTest extends FilterTestBase {
private final IFilter filter = new KotlinDefaultArgumentsFilter();
private static MethodNode createMethod(final int access, final String name,
final String descriptor) {
final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION,
access, name, descriptor, null, null);
m.visitVarInsn(Opcodes.ILOAD, 2);
m.visitInsn(Opcodes.ICONST_1);
m.visitInsn(Opcodes.IAND);
final Label label = new Label();
m.visitJumpInsn(Opcodes.IFEQ, label);
// default argument
m.visitLdcInsn(Integer.valueOf(42));
m.visitVarInsn(Opcodes.ISTORE, 1);
m.visitLabel(label);
m.visitVarInsn(Opcodes.ALOAD, 0);
m.visitVarInsn(Opcodes.ILOAD, 1);
m.visitMethodInsn(Opcodes.INVOKESPECIAL, "Target", "origin", "(I)V",
false);
m.visitInsn(Opcodes.RETURN);
return m;
}
@Test
public void should_filter() {
final MethodNode m = createMethod(Opcodes.ACC_SYNTHETIC,
"origin$default", "(LTarget;IILjava/lang/Object;)V");
context.classAnnotations
.add(KotlinGeneratedFilter.KOTLIN_METADATA_DESC);
filter.filter(m, context, output);
assertIgnored(new Range(m.instructions.get(3), m.instructions.get(3)));
}
@Test
public void should_not_filter_when_not_kotlin() {
final MethodNode m = createMethod(Opcodes.ACC_SYNTHETIC,
"not_kotlin_synthetic$default",
"(LTarget;IILjava/lang/Object;)V");
filter.filter(m, context, output);
assertIgnored();
}
@Test
public void should_not_filter_when_suffix_absent() {
final MethodNode m = createMethod(Opcodes.ACC_SYNTHETIC,
"synthetic_without_suffix", "(LTarget;IILjava/lang/Object;)V");
context.classAnnotations
.add(KotlinGeneratedFilter.KOTLIN_METADATA_DESC);
filter.filter(m, context, output);
assertIgnored();
}
@Test
public void should_not_filter_when_not_synthetic() {
final MethodNode m = createMethod(0, "not_synthetic$default",
"(LTarget;IILjava/lang/Object;)V");
context.classAnnotations
.add(KotlinGeneratedFilter.KOTLIN_METADATA_DESC);
filter.filter(m, context, output);
assertIgnored();
}
/**
* <pre>
* open class Open {
* open fun foo(a: Int = 42) {
* }
* }
* </pre>
*/
@Test
public void should_filter_open_functions() {
final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION,
Opcodes.ACC_SYNTHETIC, "foo$default",
"(LOpen;IILjava/lang/Object;)V", null, null);
context.classAnnotations
.add(KotlinGeneratedFilter.KOTLIN_METADATA_DESC);
{
m.visitVarInsn(Opcodes.ALOAD, 3);
final Label label = new Label();
m.visitJumpInsn(Opcodes.IFNULL, label);
m.visitTypeInsn(Opcodes.NEW,
"java/lang/UnsupportedOperationException");
m.visitInsn(Opcodes.DUP);
m.visitLdcInsn(
"Super calls with default arguments not supported in this target, function: foo");
m.visitMethodInsn(Opcodes.INVOKESPECIAL,
"java/lang/UnsupportedOperationException", "<init>",
"(Ljava/lang/String;)V", false);
m.visitInsn(Opcodes.ATHROW);
m.visitLabel(label);
}
{
m.visitVarInsn(Opcodes.ILOAD, 2);
m.visitInsn(Opcodes.ICONST_1);
m.visitInsn(Opcodes.IAND);
final Label label = new Label();
m.visitJumpInsn(Opcodes.IFEQ, label);
// default argument
m.visitLdcInsn(Integer.valueOf(42));
m.visitVarInsn(Opcodes.ISTORE, 1);
m.visitLabel(label);
m.visitVarInsn(Opcodes.ALOAD, 0);
m.visitVarInsn(Opcodes.ILOAD, 1);
m.visitMethodInsn(Opcodes.INVOKESPECIAL, "Open", "foo", "(I)V",
false);
m.visitInsn(Opcodes.RETURN);
}
filter.filter(m, context, output);
assertIgnored(
new Range(m.instructions.getFirst(), m.instructions.get(6)),
new Range(m.instructions.get(11), m.instructions.get(11)));
}
/**
* <pre>
* class C(a: Int = 42)
* </pre>
*/
@Test
public void should_filter_constructors() {
final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION,
Opcodes.ACC_SYNTHETIC, "<init>",
"(IILkotlin/jvm/internal/DefaultConstructorMarker;)V", null,
null);
context.classAnnotations
.add(KotlinGeneratedFilter.KOTLIN_METADATA_DESC);
m.visitVarInsn(Opcodes.ILOAD, 2);
m.visitInsn(Opcodes.ICONST_1);
m.visitInsn(Opcodes.IAND);
Label label = new Label();
m.visitJumpInsn(Opcodes.IFEQ, label);
// default argument
m.visitLdcInsn(Integer.valueOf(42));
m.visitVarInsn(Opcodes.ISTORE, 1);
m.visitLabel(label);
m.visitVarInsn(Opcodes.ALOAD, 0);
m.visitVarInsn(Opcodes.ILOAD, 1);
m.visitMethodInsn(Opcodes.INVOKESPECIAL, "Owner", "<init>", "(I)V",
false);
m.visitInsn(Opcodes.RETURN);
filter.filter(m, context, output);
assertIgnored(new Range(m.instructions.get(3), m.instructions.get(3)));
}
/**
* <pre>
* data class C(val x: Long = 42)
* </pre>
*/
@Test
public void should_filter_methods_with_parameters_that_consume_two_slots() {
final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION,
Opcodes.ACC_SYNTHETIC, "<init>",
"(JILkotlin/jvm/internal/DefaultConstructorMarker;)V", null,
null);
context.classAnnotations
.add(KotlinGeneratedFilter.KOTLIN_METADATA_DESC);
m.visitVarInsn(Opcodes.ILOAD, 3);
m.visitInsn(Opcodes.ICONST_1);
m.visitInsn(Opcodes.IAND);
final Label label = new Label();
m.visitJumpInsn(Opcodes.IFEQ, label);
// default argument
m.visitLdcInsn(Integer.valueOf(42));
m.visitVarInsn(Opcodes.ISTORE, 1);
m.visitLabel(label);
m.visitVarInsn(Opcodes.ALOAD, 0);
m.visitVarInsn(Opcodes.ILOAD, 1);
m.visitMethodInsn(Opcodes.INVOKESPECIAL, "Owner", "<init>", "(J)V",
false);
m.visitInsn(Opcodes.RETURN);
filter.filter(m, context, output);
assertIgnored(new Range(m.instructions.get(3), m.instructions.get(3)));
}
}
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