Add sleep_ms() to PicoWrapper and its test.

Author: suikan4github

rpi_pico/samples/interrupt_sample/pico_driver/picowrapper.cpp

@@ -7,6 +7,8 @@
 
 #endif
 
+void PicoWrapper::sleep_ms(uint32_t ms) { ::sleep_ms(ms); }
+
 void PicoWrapper::gpio_init(uint gpio) { ::gpio_init(gpio); }
 
 void PicoWrapper::gpio_set_dir(uint gpio, bool out) {

rpi_pico/samples/interrupt_sample/pico_driver/picowrapper.hpp

@@ -20,6 +20,13 @@ class PicoWrapper {
  public:
   virtual ~PicoWrapper() {}
   virtual void gpio_init(uint gpio);
+
+  /**
+   * @brief Wait for the given number of milliseconds before returning.
+   * @param ms the number of milliseconds to sleep
+   */
+  virtual void sleep_ms(uint32_t ms);
+
   /**
    * @brief Set a single GPIO direction.
    * @param gpio GPIO number.

test/test_picowrapper.cpp

@@ -18,6 +18,7 @@ typedef int i2c_inst_t;
 DEFINE_FFF_GLOBALS;
 
 // Create Test Spies
+FAKE_VOID_FUNC(sleep_ms, uint32_t);
 FAKE_VOID_FUNC(gpio_init, uint);
 FAKE_VOID_FUNC(gpio_set_dir, uint, bool);
 FAKE_VOID_FUNC(gpio_put, uint, bool);
@@ -34,6 +35,30 @@ FAKE_VALUE_FUNC(int, i2c_write_blocking, i2c_inst_t *, uint8_t, const uint8_t *,
 // The cpp file of the library to test.
 #include "../rpi_pico/samples/interrupt_sample/pico_driver/picowrapper.cpp"
 
+TEST(PicoWrapper, sleep_ms) {
+  PicoWrapper pico;
+  uint ms_array[] = {17, 11};
+
+  FFF_RESET_HISTORY();
+  RESET_FAKE(sleep_ms);
+
+  for (auto &&ms : ms_array) {
+    pico.sleep_ms(ms);
+  }
+
+  // Check the data from test spy. How many time called?
+  ASSERT_EQ(sleep_ms_fake.call_count, std::size(ms_array));
+
+  int index = 0;
+  for (auto &&ms : ms_array) {
+    // Check the data from test spy. Call order.
+    ASSERT_EQ(fff.call_history[index], (void *)sleep_ms);
+    // Check the data from test spy. DrawRelative Parameters.
+    ASSERT_EQ(sleep_ms_fake.arg0_history[index], ms);
+    index++;
+  }
+}
+
 TEST(PicoWrapper, gpio_init) {
   PicoWrapper pico;
   uint gpioarray[] = {17, 11};

test/todo/test_picowrapper.md

@@ -1,5 +1,9 @@
 # test_picowrapper TDD
 
+- [x] Create PicoWrapper.sleep_ms() to fail. 
+- [x] Make it success. 
+- [x] Remove the duplication. 
+
 - [x] Create PicoWrapper.i2c_write_blocking() to fail. 
 - [x] Make it success. 
 - [x] Remove the duplication.