[wpilibc] Add more unit tests (#3494)

wpilibc/src/test/native/cpp/TestCallbackHelpers.cpp

@@ -0,0 +1,82 @@
+// Copyright (c) FIRST and other WPILib contributors.
+// Open Source Software; you can modify and/or share it under the terms of
+// the WPILib BSD license file in the root directory of this project.
+
+#include "callback_helpers/TestCallbackHelpers.h"
+
+#include <iostream>
+
+#include <fmt/format.h>
+
+namespace frc::sim {
+
+void BooleanCallback::HandleCallback(std::string_view name,
+                                     const HAL_Value* value) {
+  if (!value) {
+    throw std::invalid_argument("Null value");
+  }
+  if (value->type != HAL_BOOLEAN) {
+    throw std::invalid_argument(
+        fmt::format("Wrong type '{}' for boolean", value->type).c_str());
+  }
+  m_wasTriggered = true;
+  m_lastValue = value->data.v_boolean;
+}
+
+void EnumCallback::HandleCallback(std::string_view name,
+                                  const HAL_Value* value) {
+  if (!value) {
+    throw std::invalid_argument("Null value");
+  }
+  if (value->type != HAL_ENUM) {
+    throw std::invalid_argument(
+        fmt::format("Wrong type '{}' for enum", value->type).c_str());
+  }
+
+  m_wasTriggered = true;
+  m_lastValue = value->data.v_enum;
+}
+
+void IntCallback::HandleCallback(std::string_view name,
+                                 const HAL_Value* value) {
+  if (!value) {
+    throw std::invalid_argument("Null value");
+  }
+  if (value->type != HAL_INT) {
+    throw std::invalid_argument(
+        fmt::format("Wrong type '{}' for integer", value->type).c_str());
+  }
+
+  m_wasTriggered = true;
+  m_lastValue = value->data.v_int;
+}
+
+void LongCallback::HandleCallback(std::string_view name,
+                                  const HAL_Value* value) {
+  if (!value) {
+    throw std::invalid_argument("Null value");
+  }
+  if (value->type != HAL_LONG) {
+    throw std::invalid_argument(
+        fmt::format("Wrong type '{}' for long", value->type).c_str());
+  }
+
+  m_wasTriggered = true;
+  m_lastValue = value->data.v_long;
+}
+
+void DoubleCallback::HandleCallback(std::string_view name,
+                                    const HAL_Value* value) {
+  if (!value) {
+    throw std::invalid_argument("Null value");
+  }
+  if (value->type != HAL_DOUBLE) {
+    throw std::invalid_argument(
+        fmt::format("Wrong type '{}' for double", value->type).c_str());
+  }
+
+  m_wasTriggered = true;
+  m_lastValue = value->data.v_double;
+}
+
+}  // namespace frc::sim