core: add some integration tests

jadx-core/src/test/java/jadx/tests/internal/annotations/TestParamAnnotations.java

+package jadx.tests.internal.annotations;
+
+import jadx.api.InternalJadxTest;
+import jadx.core.dex.nodes.ClassNode;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.junit.Test;
+
+import static org.hamcrest.CoreMatchers.containsString;
+import static org.junit.Assert.assertThat;
+
+public class TestParamAnnotations extends InternalJadxTest {
+
+	public static class TestCls {
+
+		@Target({ElementType.PARAMETER})
+		@Retention(RetentionPolicy.RUNTIME)
+		public static @interface A {
+			int i() default 7;
+		}
+
+		void test1(@A int i) {
+		}
+
+		void test2(int i, @A int j) {
+		}
+
+		void test3(@A(i = 5) int i) {
+		}
+	}
+
+	@Test
+	public void test() {
+		ClassNode cls = getClassNode(TestCls.class);
+		String code = cls.getCode().toString();
+		System.out.println(code);
+
+		assertThat(code, containsString("void test1(@A int i) {"));
+		assertThat(code, containsString("void test2(int i, @A int j) {"));
+		assertThat(code, containsString("void test3(@A(i = 5) int i) {"));
+	}
+}

jadx-core/src/test/java/jadx/tests/internal/annotations/TestVarArgAnnotation.java

+package jadx.tests.internal.annotations;
+
+import jadx.api.InternalJadxTest;
+import jadx.core.dex.nodes.ClassNode;
+
+import org.junit.Test;
+
+import static org.hamcrest.CoreMatchers.containsString;
+import static org.junit.Assert.assertThat;
+
+public class TestVarArgAnnotation extends InternalJadxTest {
+
+	public static class TestCls {
+
+		void test1(int... a) {
+		}
+
+		void test2(int i, Object... a) {
+		}
+
+		void test3(int[] a) {
+		}
+
+		void call() {
+			test1(1, 2);
+			test2(3, "1", 7);
+			test3(new int[]{5, 8});
+		}
+	}
+
+	@Test
+	public void test() {
+		ClassNode cls = getClassNode(TestCls.class);
+		String code = cls.getCode().toString();
+		System.out.println(code);
+
+		assertThat(code, containsString("void test1(int... a) {"));
+		assertThat(code, containsString("void test2(int i, Object... a) {"));
+
+		// TODO:
+		assertThat(code, containsString("test1(new int[]{1, 2});"));
+		assertThat(code, containsString("test2(3, objArr);"));
+
+		// negative case
+		assertThat(code, containsString("void test3(int[] a) {"));
+		assertThat(code, containsString("test3(new int[]{5, 8});"));
+	}
+}

jadx-core/src/test/java/jadx/tests/internal/inner/TestAnonymousClass4.java

+package jadx.tests.internal.inner;
+
+import jadx.api.InternalJadxTest;
+import jadx.core.dex.nodes.ClassNode;
+
+import org.junit.Test;
+
+import static jadx.tests.utils.JadxMatchers.containsOne;
+import static jadx.tests.utils.JadxMatchers.countString;
+import static org.junit.Assert.assertThat;
+
+public class TestAnonymousClass4 extends InternalJadxTest {
+
+	public static class TestCls {
+		public static class Inner {
+			private int f;
+			private double d;
+
+			public void test() {
+				new Thread() {
+					{
+						f = 1;
+					}
+
+					@Override
+					public void run() {
+						d = 7.5;
+					}
+				}.start();
+			}
+		}
+	}
+
+	@Test
+	public void test() {
+		ClassNode cls = getClassNode(TestCls.class);
+		String code = cls.getCode().toString();
+		System.out.println(code);
+
+		assertThat(code, containsOne(indent(3) + "new Thread() {"));
+		assertThat(code, containsOne(indent(4) + "{"));
+		assertThat(code, containsOne("f = 1;"));
+		assertThat(code, countString(2, indent(4) + "}"));
+		assertThat(code, containsOne(indent(4) + "public void run() {"));
+		assertThat(code, containsOne("d = 7.5"));
+		assertThat(code, containsOne(indent(3) + "}.start();"));
+	}
+}