add fifo test

test/test/test_fifo.c

@@ -0,0 +1,79 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include "unity.h"
+#include "tusb_fifo.h"
+
+#define FIFO_SIZE 10
+TU_FIFO_DEF(ff, FIFO_SIZE, uint8_t, false);
+
+void setUp(void)
+{
+  tu_fifo_clear(&ff);
+}
+
+void tearDown(void)
+{
+}
+
+void test_normal(void)
+{
+  uint8_t i;
+
+  for(i=0; i < FIFO_SIZE; i++)
+  {
+    tu_fifo_write(&ff, &i);
+  }
+
+  for(i=0; i < FIFO_SIZE; i++)
+  {
+    uint8_t c;
+    tu_fifo_read(&ff, &c);
+    TEST_ASSERT_EQUAL(i, c);
+  }
+}
+
+void test_empty(void)
+{
+  uint8_t temp;
+  TEST_ASSERT_TRUE(tu_fifo_empty(&ff));
+  tu_fifo_write(&ff, &temp);
+  TEST_ASSERT_FALSE(tu_fifo_empty(&ff));
+}
+
+void test_full(void)
+{
+  uint8_t i;
+
+  TEST_ASSERT_FALSE(tu_fifo_full(&ff));
+
+  for(i=0; i < FIFO_SIZE; i++)
+  {
+    tu_fifo_write(&ff, &i);
+  }
+
+  TEST_ASSERT_TRUE(tu_fifo_full(&ff));
+}