Import of the watch repository from Pebble

tests/fw/javascript/test_rocky_res.c

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+/*
+ * Copyright 2024 Google LLC
+ *
+ * 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 "clar.h"
+
+#include "test_jerry_port_common.h"
+
+#include "applib/rockyjs/rocky.h"
+#include "applib/rockyjs/rocky_res.h"
+
+// Fakes
+#include "fake_app_timer.h"
+#include "fake_time.h"
+
+// Stubs
+#include "stubs_app_manager.h"
+#include "stubs_app_state.h"
+#include "stubs_logging.h"
+#include "stubs_passert.h"
+#include "stubs_pbl_malloc.h"
+#include "stubs_sleep.h"
+#include "stubs_serial.h"
+#include "stubs_syscalls.h"
+#include "stubs_sys_exit.h"
+
+
+// instead of including internal jerry script headers here and pulling the whole dependency we will
+// duplicate this value here instead
+// if this fails, duplicate value from src/fw/vendor/jerryscript/jerry-core/jerry-snapshot.h
+#define JERRY_SNAPSHOT_VERSION (6u)
+
+void app_event_loop_common(void) {}
+
+bool sys_get_current_app_is_rocky_app(void) {
+  return true;
+}
+
+size_t heap_bytes_free(void) {
+  return 123456;
+}
+
+static uint32_t s_resource_storage_get_num_entries__result;
+uint32_t resource_storage_get_num_entries(ResAppNum app_num, uint32_t resource_id) {
+  return s_resource_storage_get_num_entries__result;
+}
+
+void rocky_api_watchface_init(void){}
+void rocky_api_deinit(void){}
+
+size_t resource_size(ResAppNum app_num, uint32_t id) {
+  return 0;
+}
+
+bool resource_is_valid(ResAppNum app_num, uint32_t resource_id) {
+  return true;
+}
+
+int process_metadata_get_res_bank_num(const PebbleProcessMd *md) {
+  return 123;
+}
+
+size_t resource_load_byte_range_system(ResAppNum app_num, uint32_t id, uint32_t start_offset, uint8_t *data, size_t num_bytes) {
+  const size_t some_bytes = 20; // a real snapshot is larger than just the header
+
+  // in our test setup, we will treat resource
+  // 10 as an invalid snapshot header, and
+  // 20 as a valid one
+  switch (id) {
+    case 10: {
+      cl_assert(num_bytes >= sizeof(RockySnapshotHeader));
+      *(RockySnapshotHeader*)data = (RockySnapshotHeader) {
+        .version = 123, // invalid
+      };
+      return sizeof(RockySnapshotHeader);
+    }
+    case 20: {
+      const size_t result = sizeof(RockySnapshotHeader) + sizeof(uint64_t);
+      cl_assert(num_bytes >= result);
+
+      RockySnapshotHeader *header = (RockySnapshotHeader*)data;
+      *header = ROCKY_EXPECTED_SNAPSHOT_HEADER;
+      // first uint64_t after our header is the jerry script buffer which starts with a version
+      *(uint64_t*)(header + 1) = JERRY_SNAPSHOT_VERSION;
+      return result;
+    }
+    default:
+      return 0;
+  }
+}
+
+void test_rocky_res__initialize(void) {
+  s_resource_storage_get_num_entries__result = 0;
+}
+
+void test_rocky_res__no_snapshot(void) {
+  s_resource_storage_get_num_entries__result = 5;
+  cl_assert_equal_b(false, rocky_app_has_compatible_bytecode_res(123));
+}
+
+void test_rocky_res__only_invalid_snapshot(void) {
+  s_resource_storage_get_num_entries__result = 15;
+  cl_assert_equal_b(false, rocky_app_has_compatible_bytecode_res(123));
+}
+
+void test_rocky_res__valid_snapshot(void) {
+  s_resource_storage_get_num_entries__result = 25;
+  cl_assert_equal_b(true, rocky_app_has_compatible_bytecode_res(123));
+}