Down to one test failing

This commit is contained in:
Eric Ratliff
2026-02-21 21:33:27 -06:00
parent 8a72098443
commit a9f729c7de
11 changed files with 3590 additions and 336 deletions

View File

@@ -1,3 +1,13 @@
/*
* test_system.cpp -- Your system tests go here.
*
* This file is YOURS. Anvil will never overwrite it.
* The weather station example tests are in test_weather.cpp.
*
* System tests use SimHal and Tmp36Sim to exercise real application
* logic against simulated hardware. See test_weather.cpp for examples.
*/
#include <gtest/gtest.h>
#include "mock_arduino.h"
@@ -6,114 +16,13 @@
#include "tmp36_sim.h"
#include "{{PROJECT_NAME}}_app.h"
// ============================================================================
// System Tests -- exercise WeatherApp with simulated sensor and hardware
// Example: add your own system tests below
// TEST(MySystemTests, DescribeWhatItTests) {
// mock_arduino_reset();
// SimHal sim;
// Tmp36Sim sensor(25.0f, 0.5f);
//
// These tests use SimHal (simulated GPIO, timing, serial) and Tmp36Sim
// (simulated analog sensor with noise). No mocking expectations -- we
// observe real behavior through SimHal's inspection API.
// ============================================================================
class WeatherSystemTest : public ::testing::Test {
protected:
void SetUp() override {
mock_arduino_reset();
sim_.setMillis(0);
}
SimHal sim_;
Tmp36Sim sensor_{25.0f}; // 25 C base temperature
};
TEST_F(WeatherSystemTest, StartsAndPrintsToSerial) {
WeatherApp app(&sim_, &sensor_);
app.begin();
std::string output = sim_.serialOutput();
EXPECT_NE(output.find("WeatherApp started"), std::string::npos);
EXPECT_NE(output.find("Temperature:"), std::string::npos);
}
TEST_F(WeatherSystemTest, InitialReadingIsReasonable) {
Tmp36Sim exact_sensor(25.0f, 0.0f); // zero noise
WeatherApp app(&sim_, &exact_sensor);
app.begin();
EXPECT_NEAR(app.lastCelsius(), 25.0f, 1.0f);
EXPECT_EQ(app.readCount(), 1);
}
TEST_F(WeatherSystemTest, ReadsAtTwoSecondIntervals) {
WeatherApp app(&sim_, &sensor_);
app.begin();
EXPECT_EQ(app.readCount(), 1);
// 1 second -- no new reading
sim_.advanceMillis(1000);
app.update();
EXPECT_EQ(app.readCount(), 1);
// 2 seconds -- new reading
sim_.advanceMillis(1000);
app.update();
EXPECT_EQ(app.readCount(), 2);
// 4 seconds -- another reading
sim_.advanceMillis(2000);
app.update();
EXPECT_EQ(app.readCount(), 3);
}
TEST_F(WeatherSystemTest, FiveMinuteRun) {
WeatherApp app(&sim_, &sensor_);
app.begin();
// Run 5 minutes at 100ms resolution
for (int i = 0; i < 3000; ++i) {
sim_.advanceMillis(100);
app.update();
}
// 5 minutes = 300 seconds / 2 second interval = 150 readings + 1 initial
EXPECT_EQ(app.readCount(), 151);
}
TEST_F(WeatherSystemTest, TemperatureChangeMidRun) {
Tmp36Sim sensor(20.0f, 0.0f); // start at 20 C, no noise
WeatherApp app(&sim_, &sensor);
app.begin();
EXPECT_NEAR(app.lastCelsius(), 20.0f, 1.0f);
// Change temperature and wait for next reading
sensor.setBaseTemperature(35.0f);
sim_.advanceMillis(2000);
app.update();
EXPECT_NEAR(app.lastCelsius(), 35.0f, 1.0f);
}
TEST_F(WeatherSystemTest, SerialOutputContainsFahrenheit) {
Tmp36Sim exact_sensor(0.0f, 0.0f); // 0 C = 32 F
WeatherApp app(&sim_, &exact_sensor);
app.begin();
std::string output = sim_.serialOutput();
EXPECT_NE(output.find("32"), std::string::npos)
<< "Should contain 32 F for 0 C: " << output;
}
TEST_F(WeatherSystemTest, NoisyReadingsStayInRange) {
Tmp36Sim noisy_sensor(25.0f, 2.0f); // +/- 2 C noise
noisy_sensor.setSeed(42);
WeatherApp app(&sim_, &noisy_sensor);
for (int i = 0; i < 20; ++i) {
sim_.setMillis(i * 2000);
if (i == 0) app.begin(); else app.update();
float c = app.lastCelsius();
EXPECT_GE(c, 20.0f) << "Reading " << i << " too low: " << c;
EXPECT_LE(c, 30.0f) << "Reading " << i << " too high: " << c;
}
}
// WeatherApp app(&sim, &sensor);
// app.begin();
// // ... your test logic ...
// }