[render-test] Add metric_paths into Manifest (#15973)

* [render-test]Add expected metrics path in manifest file

* seperate metrics.json and expected.png

* fix expected path parsing

* keep expectation path if update is enabled

1 files changed, 7 insertions, 2 deletions

diff --git a/render-test/metadata.hpp b/render-test/metadata.hpp
index 2b007a445c..32eb3455ad 100644
--- a/render-test/metadata.hpp
+++ b/render-test/metadata.hpp
@@ -29,11 +29,16 @@ struct TestStatistics {
 
 struct TestPaths {
     TestPaths() = default;
-    TestPaths(mbgl::filesystem::path stylePath_, std::vector<mbgl::filesystem::path> expectations_)
-        : stylePath(std::move(stylePath_)), expectations(std::move(expectations_)) {}
+    TestPaths(mbgl::filesystem::path stylePath_,
+              std::vector<mbgl::filesystem::path> expectations_,
+              std::vector<mbgl::filesystem::path> expectedMetrics_)
+        : stylePath(std::move(stylePath_)),
+          expectations(std::move(expectations_)),
+          expectedMetrics(std::move(expectedMetrics_)) {}
 
     mbgl::filesystem::path stylePath;
     std::vector<mbgl::filesystem::path> expectations;
+    std::vector<mbgl::filesystem::path> expectedMetrics;
 
     std::string defaultExpectations() const {
         assert(!expectations.empty());