diff --git a/verifier_test.c b/verifier_test.c
new file mode 100644
index 0000000..5b6c1f4
--- /dev/null
+++ b/verifier_test.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+#include "verifier.h"
+
+// This is build/target/product/security/testkey.x509.pem after being
+// dumped out by dumpkey.jar.
+RSAPublicKey test_key =
+    { 64, 0xc926ad21,
+      { 1795090719, 2141396315, 950055447, -1713398866,
+        -26044131, 1920809988, 546586521, -795969498,
+        1776797858, -554906482, 1805317999, 1429410244,
+        129622599, 1422441418, 1783893377, 1222374759,
+        -1731647369, 323993566, 28517732, 609753416,
+        1826472888, 215237850, -33324596, -245884705,
+        -1066504894, 774857746, 154822455, -1797768399,
+        -1536767878, -1275951968, -1500189652, 87251430,
+        -1760039318, 120774784, 571297800, -599067824,
+        -1815042109, -483341846, -893134306, -1900097649,
+        -1027721089, 950095497, 555058928, 414729973,
+        1136544882, -1250377212, 465547824, -236820568,
+        -1563171242, 1689838846, -404210357, 1048029507,
+        895090649, 247140249, 178744550, -747082073,
+        -1129788053, 109881576, -350362881, 1044303212,
+        -522594267, -1309816990, -557446364, -695002876},
+      { -857949815, -510492167, -1494742324, -1208744608,
+        251333580, 2131931323, 512774938, 325948880,
+        -1637480859, 2102694287, -474399070, 792812816,
+        1026422502, 2053275343, -1494078096, -1181380486,
+        165549746, -21447327, -229719404, 1902789247,
+        772932719, -353118870, -642223187, 216871947,
+        -1130566647, 1942378755, -298201445, 1055777370,
+        964047799, 629391717, -2062222979, -384408304,
+        191868569, -1536083459, -612150544, -1297252564,
+        -1592438046, -724266841, -518093464, -370899750,
+        -739277751, -1536141862, 1323144535, 61311905,
+        1997411085, 376844204, 213777604, -217643712,
+        9135381, 1625809335, -1490225159, -1342673351,
+        1117190829, -57654514, 1825108855, -1281819325,
+        1111251351, -1726129724, 1684324211, -1773988491,
+        367251975, 810756730, -1941182952, 1175080310 }
+    };
+
+void ui_print(const char* fmt, ...) {
+    char buf[256];
+    va_list ap;
+    va_start(ap, fmt);
+    vsnprintf(buf, 256, fmt, ap);
+    va_end(ap);
+
+    fputs(buf, stderr);
+}
+
+void ui_set_progress(float fraction) {
+}
+
+int main(int argc, char **argv) {
+    if (argc != 2) {
+        fprintf(stderr, "Usage: %s <package>\n", argv[0]);
+        return 2;
+    }
+
+    int result = verify_file(argv[1], &test_key, 1);
+    if (result == VERIFY_SUCCESS) {
+        printf("SUCCESS\n");
+        return 0;
+    } else if (result == VERIFY_FAILURE) {
+        printf("FAILURE\n");
+        return 1;
+    } else {
+        printf("bad return value\n");
+        return 3;
+    }
+}