test: add MissingGenericsTypesTest (PR #498)

jadx-core/src/test/java/jadx/tests/api/utils/TestUtils.java

 package jadx.tests.api.utils;
 
+import org.junit.jupiter.api.extension.ExtendWith;
+
+import jadx.NotYetImplementedExtension;
 import jadx.core.codegen.CodeWriter;
 
+@ExtendWith(NotYetImplementedExtension.class)
 public class TestUtils {
 
 	public static String indent(int indent) {

jadx-core/src/test/java/jadx/tests/integration/generics/MissingGenericsTypesTest.java

+package jadx.tests.integration.generics;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.containsString;
+
+import org.junit.jupiter.api.Test;
+
+import jadx.NotYetImplemented;
+import jadx.core.dex.nodes.ClassNode;
+import jadx.tests.api.SmaliTest;
+
+public class MissingGenericsTypesTest extends SmaliTest {
+
+	/*
+		private int x;
+
+		public void test() {
+			Map<String, String> map = new HashMap();
+			x = 1;
+			for (String s : map.keySet()) {
+				System.out.println(s);
+			}
+		}
+	*/
+
+	@Test
+	@NotYetImplemented
+	public void test() {
+		ClassNode cls = getClassNodeFromSmaliWithPath("generics", "MissingGenericsTypesTest");
+		String code = cls.getCode().toString();
+
+		assertThat(code, containsString("Map<String"));
+	}
+}

jadx-core/src/test/smali/generics/MissingGenericsTypesTest.smali

+.class public LMissingGenericsTypesTest;
+.super Ljava/lang/Object;
+
+# instance fields
+.field private x:I
+
+
+# direct methods
+.method public constructor <init>()V
+    .locals 0
+
+    .line 9
+    invoke-direct {p0}, Ljava/lang/Object;-><init>()V
+
+    return-void
+.end method
+
+
+# virtual methods
+.method public test()V
+    .locals 3
+
+    .line 14
+    new-instance v0, Ljava/util/HashMap;
+
+    invoke-direct {v0}, Ljava/util/HashMap;-><init>()V
+
+    const/4 v1, 0x1
+
+    .line 15
+    iput v1, p0, LMissingGenericsTypesTest;->x:I
+
+    .line 16
+    invoke-interface {v0}, Ljava/util/Map;->keySet()Ljava/util/Set;
+
+    move-result-object v0
+
+    invoke-interface {v0}, Ljava/util/Set;->iterator()Ljava/util/Iterator;
+
+    move-result-object v0
+
+    :goto_0
+    invoke-interface {v0}, Ljava/util/Iterator;->hasNext()Z
+
+    move-result v1
+
+    if-eqz v1, :cond_0
+
+    invoke-interface {v0}, Ljava/util/Iterator;->next()Ljava/lang/Object;
+
+    move-result-object v1
+
+    check-cast v1, Ljava/lang/String;
+
+    .line 17
+    sget-object v2, Ljava/lang/System;->out:Ljava/io/PrintStream;
+
+    invoke-virtual {v2, v1}, Ljava/io/PrintStream;->println(Ljava/lang/String;)V
+
+    goto :goto_0
+
+    :cond_0
+    return-void
+.end method