Route diagnostic hooks through platform services

tests/platform_api/platform_services_tests.cpp

@@ -21,6 +21,16 @@ public:
         return storage_paths;
     }
 
+    void log_stacktrace() override
+    {
+        ++stacktrace_logs;
+    }
+
+    void trigger_crash_test() override
+    {
+        ++crash_tests;
+    }
+
     [[nodiscard]] std::string clipboard_text() override
     {
         ++clipboard_reads;
@@ -177,6 +187,8 @@ public:
     int render_capture_begins = 0;
     int render_capture_ends = 0;
     int storage_prepares = 0;
+    int stacktrace_logs = 0;
+    int crash_tests = 0;
     int recording_delete_policy_checks = 0;
     int recording_clears = 0;
     int live_asset_reload_policy_checks = 0;
@@ -244,6 +256,18 @@ void platform_services_dispatch_storage_path_preparation(pp::tests::Harness& har
     PP_EXPECT(harness, paths.temporary_path == "D:/Paint/tmp");
 }
 
+void platform_services_dispatch_diagnostics(pp::tests::Harness& harness)
+{
+    FakePlatformServices fake("unused");
+    pp::platform::PlatformServices& services = fake;
+
+    services.log_stacktrace();
+    services.trigger_crash_test();
+
+    PP_EXPECT(harness, fake.stacktrace_logs == 1);
+    PP_EXPECT(harness, fake.crash_tests == 1);
+}
+
 void platform_services_preserve_empty_clipboard_writes(pp::tests::Harness& harness)
 {
     FakePlatformServices fake("initial");
@@ -417,6 +441,7 @@ int main()
 {
     pp::tests::Harness harness;
     harness.run("platform services dispatch storage path preparation", platform_services_dispatch_storage_path_preparation);
+    harness.run("platform services dispatch diagnostics", platform_services_dispatch_diagnostics);
     harness.run("platform services dispatch clipboard reads and writes", platform_services_dispatch_clipboard_reads_and_writes);
     harness.run("platform services preserve empty clipboard writes", platform_services_preserve_empty_clipboard_writes);
     harness.run("platform services dispatch visibility updates", platform_services_dispatch_visibility_updates);