Diff: TESTS/mbed_drivers/stats/main.cpp

Revision:

0:6c56fb4bc5f0

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TESTS/mbed_drivers/stats/main.cpp	Fri Nov 04 20:27:58 2016 +0000
@@ -0,0 +1,207 @@
+/*
+ * Copyright (c) 2013-2016, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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 "mbed.h"
+#include "greentea-client/test_env.h"
+#include "unity/unity.h"
+#include "utest/utest.h"
+#include "mbed_stats.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+#if !defined(MBED_HEAP_STATS_ENABLED) || !MBED_HEAP_STATS_ENABLED || defined(__ICCARM__)
+  #error [NOT_SUPPORTED] test not supported
+#endif
+
+using namespace utest::v1;
+
+#define ALLOCATION_SIZE_DEFAULT 564
+#define ALLOCATION_SIZE_SMALL   124
+#define ALLOCATION_SIZE_LARGE   790
+#define ALLOCATION_SIZE_FAIL   (1024 * 1024 *1024)
+
+typedef void* (*malloc_cb_t) (uint32_t size);
+
+static void* thunk_malloc(uint32_t size);
+static void* thunk_calloc_1(uint32_t size);
+static void* thunk_calloc_4(uint32_t size);
+static void* thunk_realloc(uint32_t size);
+
+malloc_cb_t malloc_thunk_array[] = {
+    thunk_malloc,
+    thunk_calloc_1,
+    thunk_calloc_4,
+    thunk_realloc,
+};
+
+void test_case_malloc_free_size()
+{
+    printf("Initial print to setup stdio buffers\n");
+    mbed_stats_heap_t stats_start;
+    mbed_stats_heap_t stats_current;
+    void *data;
+
+    mbed_stats_heap_get(&stats_start);
+
+    for (uint32_t i = 0; i < sizeof(malloc_thunk_array) / sizeof(malloc_cb_t); i++) {
+
+        // Allocate memory and assert size change
+        data = malloc_thunk_array[i](ALLOCATION_SIZE_DEFAULT);
+        TEST_ASSERT(data != NULL);
+        mbed_stats_heap_get(&stats_current);
+        uint32_t increase = stats_current.current_size - stats_start.current_size;
+        TEST_ASSERT_EQUAL_UINT32(ALLOCATION_SIZE_DEFAULT, increase);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.total_size + ALLOCATION_SIZE_DEFAULT * (i + 1), stats_current.total_size);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.alloc_cnt + 1, stats_current.alloc_cnt);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.alloc_fail_cnt, stats_current.alloc_fail_cnt);
+
+        // Free memory and assert back to starting size
+        free(data);
+        mbed_stats_heap_get(&stats_current);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.current_size, stats_current.current_size);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.alloc_cnt, stats_current.alloc_cnt);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.alloc_fail_cnt, stats_current.alloc_fail_cnt);
+    }
+}
+
+void test_case_allocate_zero()
+{
+    mbed_stats_heap_t stats_start;
+    mbed_stats_heap_t stats_current;
+    void *data;
+
+    mbed_stats_heap_get(&stats_start);
+
+    for (uint32_t i = 0; i < sizeof(malloc_thunk_array) / sizeof(malloc_cb_t); i++) {
+
+        // Allocate memory and assert size change
+        data = malloc_thunk_array[i](0);
+        // Return can be NULL
+        mbed_stats_heap_get(&stats_current);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.current_size, stats_current.current_size);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.total_size, stats_current.total_size);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.alloc_fail_cnt, stats_current.alloc_fail_cnt);
+
+        // Free memory and assert back to starting size
+        free(data);
+        mbed_stats_heap_get(&stats_current);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.current_size, stats_current.current_size);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.alloc_cnt, stats_current.alloc_cnt);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.alloc_fail_cnt, stats_current.alloc_fail_cnt);
+    }
+}
+
+void test_case_allocate_fail()
+{
+    mbed_stats_heap_t stats_start;
+    mbed_stats_heap_t stats_current;
+    void *data;
+
+    mbed_stats_heap_get(&stats_start);
+
+    for (uint32_t i = 0; i < sizeof(malloc_thunk_array) / sizeof(malloc_cb_t); i++) {
+
+        // Trigger a failure by trying to allocate a buffer that won't fit
+        data = malloc_thunk_array[i](ALLOCATION_SIZE_FAIL);
+        TEST_ASSERT(data == NULL);
+        mbed_stats_heap_get(&stats_current);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.current_size, stats_current.current_size);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.total_size, stats_current.total_size);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.alloc_cnt, stats_current.alloc_cnt);
+        TEST_ASSERT_EQUAL_UINT32(stats_start.alloc_fail_cnt + i + 1, stats_current.alloc_fail_cnt);
+    }
+}
+
+static void* thunk_malloc(uint32_t size)
+{
+    printf("Malloc thunk\n");
+    return malloc(size);
+}
+
+static void* thunk_calloc_1(uint32_t size)
+{
+    printf("Calloc thunk 1 byte\n");
+    return calloc(size / 1, 1);
+}
+
+static void* thunk_calloc_4(uint32_t size)
+{
+    printf("Calloc thunk 4 bytes\n");
+    return calloc(size / 4, 4);
+}
+
+
+static void* thunk_realloc(uint32_t size)
+{
+    printf("Realloc thunk\n");
+    return realloc(NULL, size);
+}
+
+void test_case_realloc_size()
+{
+    mbed_stats_heap_t stats_start;
+    mbed_stats_heap_t stats_current;
+    uint32_t increase;
+    void *data;
+
+    mbed_stats_heap_get(&stats_start);
+
+    // Allocate memory and assert size change
+    data = realloc(NULL, ALLOCATION_SIZE_DEFAULT);
+    TEST_ASSERT(data != NULL);
+    mbed_stats_heap_get(&stats_current);
+    increase = stats_current.current_size - stats_start.current_size;
+    TEST_ASSERT_EQUAL_UINT32(increase, ALLOCATION_SIZE_DEFAULT);
+
+    // Decrease size and assert size change
+    data = realloc(data, ALLOCATION_SIZE_SMALL);
+    TEST_ASSERT(data != NULL);
+    mbed_stats_heap_get(&stats_current);
+    increase = stats_current.current_size - stats_start.current_size;
+    TEST_ASSERT_EQUAL_UINT32(increase, ALLOCATION_SIZE_SMALL);
+
+    // Increase size and assert size change
+    data = realloc(data, ALLOCATION_SIZE_LARGE);
+    TEST_ASSERT(data != NULL);
+    mbed_stats_heap_get(&stats_current);
+    increase = stats_current.current_size - stats_start.current_size;
+    TEST_ASSERT_EQUAL_UINT32(increase, ALLOCATION_SIZE_LARGE);
+
+    // Free memory and assert back to starting size
+    free(data);
+    mbed_stats_heap_get(&stats_current);
+    TEST_ASSERT_EQUAL_UINT32(stats_start.current_size, stats_current.current_size);
+}
+
+Case cases[] = {
+    Case("malloc and free size", test_case_malloc_free_size),
+    Case("allocate size zero", test_case_allocate_zero),
+    Case("allocation failure", test_case_allocate_fail),
+    Case("realloc size", test_case_realloc_size),
+};
+
+utest::v1::status_t greentea_test_setup(const size_t number_of_cases)
+{
+    GREENTEA_SETUP(20, "default_auto");
+    return greentea_test_setup_handler(number_of_cases);
+}
+
+Specification specification(greentea_test_setup, cases, greentea_test_teardown_handler);
+
+int main()
+{
+    Harness::run(specification);
+}