| 9 | #include "fl/test/fltest.h" |
| 10 | |
| 11 | FL_TEST_FILE(FL_FILEPATH) { |
| 12 | |
| 13 | // ============================================================================ |
| 14 | // PWM Frequency Tests |
| 15 | // ============================================================================ |
| 16 | |
| 17 | FL_TEST_CASE("pwm_basic_init_cleanup") { |
| 18 | FL_REQUIRE_EQ(fl::setPwmFrequency(5, 100), 0); |
| 19 | FL_REQUIRE_EQ(fl::getPwmFrequency(5), 100u); |
| 20 | fl::analogWrite(5, 128); |
| 21 | FL_REQUIRE_EQ(fl::pwmEnd(5), 0); |
| 22 | FL_REQUIRE_EQ(fl::getPwmFrequency(5), 0u); |
| 23 | } |
| 24 | |
| 25 | FL_TEST_CASE("pwm_invalid_frequency") { |
| 26 | // Zero frequency invalid |
| 27 | FL_REQUIRE_LT(fl::setPwmFrequency(5, 0), 0); |
| 28 | |
| 29 | // On stub platform (ISR fallback required), max is 500 Hz |
| 30 | FL_REQUIRE_LT(fl::setPwmFrequency(5, 1000), 0); |
| 31 | FL_REQUIRE_LT(fl::setPwmFrequency(5, 600), 0); |
| 32 | |
| 33 | // Valid frequencies should work |
| 34 | FL_REQUIRE_EQ(fl::setPwmFrequency(5, 1), 0); // Min |
| 35 | FL_REQUIRE_EQ(fl::pwmEnd(5), 0); |
| 36 | |
| 37 | FL_REQUIRE_EQ(fl::setPwmFrequency(5, 500), 0); // Max for ISR |
| 38 | FL_REQUIRE_EQ(fl::pwmEnd(5), 0); |
| 39 | } |
| 40 | |
| 41 | FL_TEST_CASE("pwm_reconfigure") { |
| 42 | // First init |
| 43 | FL_REQUIRE_EQ(fl::setPwmFrequency(10, 100), 0); |
| 44 | FL_REQUIRE_EQ(fl::getPwmFrequency(10), 100u); |
| 45 | fl::analogWrite(10, 128); |
| 46 | |
| 47 | // Reconfigure without explicit end (auto-releases and reconfigures) |
| 48 | FL_REQUIRE_EQ(fl::setPwmFrequency(10, 200), 0); |
| 49 | FL_REQUIRE_EQ(fl::getPwmFrequency(10), 200u); |
| 50 | fl::analogWrite(10, 200); |
| 51 | |
| 52 | FL_REQUIRE_EQ(fl::pwmEnd(10), 0); |
| 53 | } |
| 54 | |
| 55 | FL_TEST_CASE("pwm_channel_allocation") { |
| 56 | // Allocate all 8 channels |
| 57 | for (int i = 0; i < 8; i++) { |
| 58 | FL_REQUIRE_EQ(fl::setPwmFrequency(10 + i, 60 + i * 10), 0); |
| 59 | fl::analogWrite(10 + i, 128); |
| 60 | } |
| 61 | |
| 62 | // 9th should fail (all channels in use) |
| 63 | FL_REQUIRE_LT(fl::setPwmFrequency(99, 60), 0); |
| 64 | |
| 65 | // Release one channel |
| 66 | FL_REQUIRE_EQ(fl::pwmEnd(12), 0); |
| 67 | |
| 68 | // Now 9th should succeed (reusing freed channel) |
nothing calls this directly
no test coverage detected