Import of the watch repository from Pebble

applib-targets/emscripten/tests/test_custom_resources.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 "../../emscripten_resources.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#define ASSERT(expr) \
+  do { \
+    if (!(expr)) { \
+      printf("%s:%d " #expr " false\n", __FILE__, __LINE__); \
+      exit(-1); \
+    } \
+  } while (0)
+
+
+#define CUSTOM_RES_GEN(x) \
+  static uint32_t s_read_##x##_called = 0; \
+  static uint32_t s_size_##x##_called = 0; \
+  int custom_res_read_##x(int offset, uint8_t *buf, int num_bytes) { \
+    uint32_t *buf_ptr = (uint32_t *)buf; \
+    *buf_ptr = x; \
+    s_read_##x##_called++; \
+    return 4; \
+  } \
+  int custom_res_size_##x(void) { \
+    s_size_##x##_called++; \
+    return 4; \
+  }
+
+CUSTOM_RES_GEN(1);
+CUSTOM_RES_GEN(2);
+CUSTOM_RES_GEN(3);
+CUSTOM_RES_GEN(4);
+
+int main(int argc, char **argv) {
+  // 1 res
+  uint32_t id_1 = emx_resources_register_custom(custom_res_read_1, custom_res_size_1);
+  ASSERT(emx_resources_get_size(1, id_1) == 4);
+  uint32_t buf = 0;
+  ASSERT(emx_resources_read(1, id_1, 0, (uint8_t *)&buf, 1) == 4);
+  ASSERT(buf == 1);
+  ASSERT(s_read_1_called == 1);
+  ASSERT(s_size_1_called == 1);
+
+  // 2nd res
+  uint32_t id_2 = emx_resources_register_custom(custom_res_read_2, custom_res_size_2);
+  ASSERT(emx_resources_get_size(1, id_2) == 4);
+  buf = 0;
+  ASSERT(emx_resources_read(1, id_2, 0, (uint8_t *)&buf, 1) == 4);
+  ASSERT(buf == 2);
+  ASSERT(s_read_2_called == 1);
+  ASSERT(s_size_2_called == 1);
+
+  // 3rd res
+  uint32_t id_3 = emx_resources_register_custom(custom_res_read_3, custom_res_size_3);
+  ASSERT(emx_resources_get_size(1, id_3) == 4);
+  buf = 0;
+  ASSERT(emx_resources_read(1, id_3, 0, (uint8_t *)&buf, 1) == 4);
+  ASSERT(buf == 3);
+  ASSERT(s_read_3_called == 1);
+  ASSERT(s_size_3_called == 1);
+
+  // remove 2
+  emx_resources_remove_custom(id_2);
+  ASSERT(emx_resources_get_size(1, id_2) == 0);
+  buf = 0;
+  ASSERT(emx_resources_read(1, id_2, 0, (uint8_t *)&buf, 1) == 0);
+  ASSERT(buf == 0);
+  // verify 1 & 3 are OK
+  buf = 0;
+  ASSERT(emx_resources_read(1, id_3, 0, (uint8_t *)&buf, 1) == 4);
+  ASSERT(buf == 3);
+  ASSERT(s_read_3_called == 2);
+  buf = 0;
+  ASSERT(emx_resources_read(1, id_1, 0, (uint8_t *)&buf, 1) == 4);
+  ASSERT(buf == 1);
+  ASSERT(s_read_1_called == 2);
+
+  // add 4
+  uint32_t id_4 = emx_resources_register_custom(custom_res_read_4, custom_res_size_4);
+  ASSERT(emx_resources_get_size(1, id_4) == 4);
+  buf = 0;
+  ASSERT(emx_resources_read(1, id_4, 0, (uint8_t *)&buf, 1) == 4);
+  ASSERT(buf == 4);
+  ASSERT(s_read_4_called == 1);
+  ASSERT(s_size_4_called == 1);
+
+  // remove 1 & 3
+  emx_resources_remove_custom(id_1);
+  ASSERT(emx_resources_get_size(1, id_1) == 0);
+  emx_resources_remove_custom(id_3);
+  ASSERT(emx_resources_get_size(1, id_3) == 0);
+  // verify 4 is ok
+  buf = 0;
+  ASSERT(emx_resources_read(1, id_4, 0, (uint8_t *)&buf, 1) == 4);
+  ASSERT(buf == 4);
+  ASSERT(s_read_4_called == 2);
+
+  // remove 4
+  emx_resources_remove_custom(id_4);
+  ASSERT(emx_resources_get_size(1, id_4) == 0);
+  ASSERT(s_size_4_called == 1);
+
+  // add 4 again
+  id_4 = emx_resources_register_custom(custom_res_read_4, custom_res_size_4);
+  ASSERT(emx_resources_get_size(1, id_4) == 4);
+  buf = 0;
+  ASSERT(emx_resources_read(1, id_4, 0, (uint8_t *)&buf, 1) == 4);
+  ASSERT(buf == 4);
+  ASSERT(s_read_4_called == 3);
+  ASSERT(s_size_4_called == 2);
+
+  // remove 4 again
+  emx_resources_remove_custom(id_4);
+  ASSERT(emx_resources_get_size(1, id_4) == 0);
+  ASSERT(s_size_4_called == 2);
+}