feat: allow to load custom input (#1457)

jadx-core/src/test/java/jadx/api/JadxArgsValidatorOutDirsTest.java

@@ -57,7 +57,7 @@ public class JadxArgsValidatorOutDirsTest {
 	}
 
 	private void checkOutDirs(String outDir, String srcDir, String resDir) {
-		JadxArgsValidator.validate(args);
+		JadxArgsValidator.validate(new JadxDecompiler(args));
 		LOG.debug("Got dirs: out={}, src={}, res={}", args.getOutDir(), args.getOutDirSrc(), args.getOutDirRes());
 		assertThat(args.getOutDir(), is(toFile(outDir)));
 		assertThat(args.getOutDirSrc(), is(toFile(srcDir)));

jadx-core/src/test/java/jadx/api/JadxDecompilerTest.java

@@ -1,12 +1,16 @@
 package jadx.api;
 
 import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
 import java.net.URL;
 
 import org.hamcrest.Matchers;
 import org.junit.jupiter.api.Test;
 
 import jadx.core.utils.files.FileUtils;
+import jadx.plugins.input.dex.DexInputPlugin;
 
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.notNullValue;
@@ -38,6 +42,20 @@ public class JadxDecompilerTest {
 		}
 	}
 
+	@Test
+	public void testDirectDexInput() throws IOException {
+		try (JadxDecompiler jadx = new JadxDecompiler();
+				InputStream in = new FileInputStream(getFileFromSampleDir("hello.dex"))) {
+			jadx.addCustomLoad(new DexInputPlugin().loadDexFromInputStream(in, "input"));
+			jadx.load();
+			for (JavaClass cls : jadx.getClasses()) {
+				System.out.println(cls.getCode());
+			}
+			assertThat(jadx.getClasses(), Matchers.hasSize(1));
+			assertThat(jadx.getErrorsCount(), Matchers.is(0));
+		}
+	}
+
 	private static final String TEST_SAMPLES_DIR = "test-samples/";
 
 	public static File getFileFromSampleDir(String fileName) {