Trying to fix tests in project, not done yet

templates/weather/test/test_unit.cpp.tmpl

@@ -0,0 +1,132 @@
+#include <gtest/gtest.h>
+#include <gmock/gmock.h>
+
+#include "hal.h"
+#include "mock_hal.h"
+#include "tmp36_mock.h"
+#include "{{PROJECT_NAME}}_app.h"
+
+using ::testing::_;
+using ::testing::AnyNumber;
+using ::testing::Return;
+using ::testing::HasSubstr;
+
+// ============================================================================
+// Unit Tests -- verify WeatherApp behavior with mock sensor
+// ============================================================================
+
+class WeatherUnitTest : public ::testing::Test {
+protected:
+    void SetUp() override {
+        ON_CALL(mock_, millis()).WillByDefault(Return(0));
+        EXPECT_CALL(mock_, serialBegin(_)).Times(AnyNumber());
+        EXPECT_CALL(mock_, serialPrint(_)).Times(AnyNumber());
+        EXPECT_CALL(mock_, serialPrintln(_)).Times(AnyNumber());
+        EXPECT_CALL(mock_, millis()).Times(AnyNumber());
+    }
+
+    ::testing::NiceMock<MockHal> mock_;
+    Tmp36Mock sensor_;
+};
+
+TEST_F(WeatherUnitTest, BeginPrintsStartupMessage) {
+    WeatherApp app(&mock_, &sensor_);
+
+    EXPECT_CALL(mock_, serialBegin(115200)).Times(1);
+    EXPECT_CALL(mock_, serialPrintln(HasSubstr("WeatherApp started"))).Times(1);
+
+    app.begin();
+}
+
+TEST_F(WeatherUnitTest, BeginTakesInitialReading) {
+    sensor_.setTemperature(25.0f);
+    WeatherApp app(&mock_, &sensor_);
+    app.begin();
+
+    EXPECT_EQ(app.readCount(), 1);
+    EXPECT_NEAR(app.lastCelsius(), 25.0f, 0.1f);
+}
+
+TEST_F(WeatherUnitTest, ReadsAfterInterval) {
+    sensor_.setTemperature(20.0f);
+    WeatherApp app(&mock_, &sensor_);
+
+    ON_CALL(mock_, millis()).WillByDefault(Return(0));
+    app.begin();
+    EXPECT_EQ(app.readCount(), 1);
+
+    // Not enough time yet
+    ON_CALL(mock_, millis()).WillByDefault(Return(1999));
+    app.update();
+    EXPECT_EQ(app.readCount(), 1);
+
+    // Now 2 seconds have passed
+    ON_CALL(mock_, millis()).WillByDefault(Return(2000));
+    app.update();
+    EXPECT_EQ(app.readCount(), 2);
+}
+
+TEST_F(WeatherUnitTest, DoesNotReadTooEarly) {
+    sensor_.setTemperature(22.0f);
+    WeatherApp app(&mock_, &sensor_);
+
+    ON_CALL(mock_, millis()).WillByDefault(Return(0));
+    app.begin();
+
+    ON_CALL(mock_, millis()).WillByDefault(Return(1500));
+    app.update();
+
+    EXPECT_EQ(app.readCount(), 1);
+}
+
+TEST_F(WeatherUnitTest, CelsiusToFahrenheitConversion) {
+    sensor_.setTemperature(0.0f);
+    WeatherApp app(&mock_, &sensor_);
+    app.begin();
+
+    EXPECT_NEAR(app.lastCelsius(), 0.0f, 0.1f);
+    EXPECT_NEAR(app.lastFahrenheit(), 32.0f, 0.1f);
+}
+
+TEST_F(WeatherUnitTest, BoilingPoint) {
+    sensor_.setTemperature(100.0f);
+    WeatherApp app(&mock_, &sensor_);
+    app.begin();
+
+    EXPECT_NEAR(app.lastCelsius(), 100.0f, 0.1f);
+    EXPECT_NEAR(app.lastFahrenheit(), 212.0f, 0.1f);
+}
+
+TEST_F(WeatherUnitTest, NegativeTemperature) {
+    sensor_.setTemperature(-10.0f);
+    WeatherApp app(&mock_, &sensor_);
+    app.begin();
+
+    EXPECT_NEAR(app.lastCelsius(), -10.0f, 0.1f);
+    EXPECT_NEAR(app.lastFahrenheit(), 14.0f, 0.1f);
+}
+
+TEST_F(WeatherUnitTest, PrintsTemperatureOnRead) {
+    sensor_.setTemperature(25.0f);
+    WeatherApp app(&mock_, &sensor_);
+
+    EXPECT_CALL(mock_, serialPrint(HasSubstr("Temperature: "))).Times(1);
+    EXPECT_CALL(mock_, serialPrintln(HasSubstr(" F)"))).Times(1);
+
+    app.begin();
+}
+
+TEST_F(WeatherUnitTest, MultipleReadingsTrackNewTemperature) {
+    WeatherApp app(&mock_, &sensor_);
+
+    sensor_.setTemperature(20.0f);
+    ON_CALL(mock_, millis()).WillByDefault(Return(0));
+    app.begin();
+    EXPECT_NEAR(app.lastCelsius(), 20.0f, 0.1f);
+
+    sensor_.setTemperature(30.0f);
+    ON_CALL(mock_, millis()).WillByDefault(Return(2000));
+    app.update();
+    EXPECT_NEAR(app.lastCelsius(), 30.0f, 0.1f);
+    EXPECT_EQ(app.readCount(), 2);
+}