tests: Add a test to cover legacy care_map.txt handling.

This is to cover the code added by commit
5a1dee01df3af346729b5791606b72d59b8e9815, where an O update_verifier
should not reject N care_map.txt.

Bug: 63544345
Test: recovery_component_test passes on marlin.
Change-Id: Ia944e16cba3cc635098b3ffd92842d725b570fec

1 files changed, 13 insertions, 0 deletions

diff --git a/tests/component/update_verifier_test.cpp b/tests/component/update_verifier_test.cpp
index 5fc7ef63..b04e1185 100644
--- a/tests/component/update_verifier_test.cpp
+++ b/tests/component/update_verifier_test.cpp
@@ -81,3 +81,16 @@ TEST_F(UpdateVerifierTest, verify_image_malformed_care_map) {
   ASSERT_TRUE(android::base::WriteStringToFile(content, temp_file.path));
   ASSERT_FALSE(verify_image(temp_file.path));
 }
+
+TEST_F(UpdateVerifierTest, verify_image_legacy_care_map) {
+  // This test relies on dm-verity support.
+  if (!verity_supported) {
+    GTEST_LOG_(INFO) << "Test skipped on devices without dm-verity support.";
+    return;
+  }
+
+  TemporaryFile temp_file;
+  std::string content = "/dev/block/bootdevice/by-name/system\n2,1,0";
+  ASSERT_TRUE(android::base::WriteStringToFile(content, temp_file.path));
+  ASSERT_TRUE(verify_image(temp_file.path));
+}