Add a unittest for fingerprint calculation
Add a test to check the build fingerprint when the dynamic build
id is in use.
Bug: 186786987
Test: th
Change-Id: I44d6be0c18552f319bcb8d19cca5659ce580d26c
diff --git a/init/property_service_test.cpp b/init/property_service_test.cpp
index c6dcfa2..ac6b7b2 100644
--- a/init/property_service_test.cpp
+++ b/init/property_service_test.cpp
@@ -23,6 +23,7 @@
#include <android-base/properties.h>
#include <android-base/scopeguard.h>
+#include <android-base/strings.h>
#include <gtest/gtest.h>
using android::base::GetProperty;
@@ -90,5 +91,39 @@
EXPECT_FALSE(SetProperty("sys.powerctl", "reboot,userspace"));
}
+TEST(property_service, check_fingerprint_with_legacy_build_id) {
+ std::string legacy_build_id = GetProperty("ro.build.legacy.id", "");
+ if (legacy_build_id.empty()) {
+ GTEST_SKIP() << "Skipping test, legacy build id isn't set.";
+ }
+
+ std::string vbmeta_digest = GetProperty("ro.boot.vbmeta.digest", "");
+ ASSERT_GE(vbmeta_digest.size(), 8u);
+ std::string build_id = GetProperty("ro.boot.build.id", "");
+ // Check that the build id is constructed with the prefix of vbmeta digest
+ std::string expected_build_id = legacy_build_id + "." + vbmeta_digest.substr(0, 8);
+ ASSERT_EQ(expected_build_id, build_id);
+ // Check that the fingerprint is constructed with the expected format.
+ std::string fingerprint = GetProperty("ro.build.fingerprint", "");
+ std::vector<std::string> fingerprint_fields = {
+ GetProperty("ro.product.brand", ""),
+ "/",
+ GetProperty("ro.product.name", ""),
+ "/",
+ GetProperty("ro.product.device", ""),
+ ":",
+ GetProperty("ro.build.version.release_or_codename", ""),
+ "/",
+ expected_build_id,
+ "/",
+ GetProperty("ro.build.version.incremental", ""),
+ ":",
+ GetProperty("ro.build.type", ""),
+ "/",
+ GetProperty("ro.build.tags", "")};
+
+ ASSERT_EQ(android::base::Join(fingerprint_fields, ""), fingerprint);
+}
+
} // namespace init
} // namespace android