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https://github.com/RobTillaart/Arduino.git
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122 lines
3.2 KiB
C++
122 lines
3.2 KiB
C++
//
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// FILE: unit_test_001.cpp
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// AUTHOR: Rob Tillaart
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// DATE: 2021-01-01
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// PURPOSE: unit tests for the MCP23017
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// https://github.com/RobTillaart/MCP23017_RT
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// https://github.com/Arduino-CI/arduino_ci/blob/master/REFERENCE.md
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//
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// supported assertions
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// ----------------------------
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// assertEqual(expected, actual); // a == b
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// assertNotEqual(unwanted, actual); // a != b
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// assertComparativeEquivalent(expected, actual); // abs(a - b) == 0 or (!(a > b) && !(a < b))
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// assertComparativeNotEquivalent(unwanted, actual); // abs(a - b) > 0 or ((a > b) || (a < b))
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// assertLess(upperBound, actual); // a < b
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// assertMore(lowerBound, actual); // a > b
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// assertLessOrEqual(upperBound, actual); // a <= b
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// assertMoreOrEqual(lowerBound, actual); // a >= b
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// assertTrue(actual);
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// assertFalse(actual);
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// assertNull(actual);
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// // special cases for floats
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// assertEqualFloat(expected, actual, epsilon); // fabs(a - b) <= epsilon
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// assertNotEqualFloat(unwanted, actual, epsilon); // fabs(a - b) >= epsilon
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// assertInfinity(actual); // isinf(a)
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// assertNotInfinity(actual); // !isinf(a)
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// assertNAN(arg); // isnan(a)
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// assertNotNAN(arg); // !isnan(a)
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#include <ArduinoUnitTests.h>
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#include "Arduino.h"
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#include "MCP23017.h"
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unittest_setup()
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{
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fprintf(stderr, "MCP23017_LIB_VERSION: %s\n", (char *) MCP23017_LIB_VERSION);
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}
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unittest_teardown()
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{
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}
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unittest(test_constants)
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{
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assertEqual(MCP23017_OK , 0x00);
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assertEqual(MCP23017_PIN_ERROR , 0x81);
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assertEqual(MCP23017_I2C_ERROR , 0x82);
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assertEqual(MCP23017_VALUE_ERROR , 0x83);
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assertEqual(MCP23017_PORT_ERROR , 0x84);
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assertEqual(MCP23017_INVALID_READ, -100);
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}
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// TODO more tests if godmode->wire works
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unittest(test_constructor)
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{
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Wire.resetMocks();
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MCP23017 MCP(0x27);
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assertFalse(Wire.didBegin());
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MCP.begin();
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// in fact invalid ...
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assertTrue(Wire.didBegin());
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assertTrue(MCP.isConnected());
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}
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unittest(test_lastError)
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{
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Wire.resetMocks();
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MCP23017 MCP(0x27);
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MCP.begin();
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assertEqual(MCP23017_OK, MCP.lastError());
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// MCP23017_PIN_ERROR
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MCP.pinMode(16, INPUT);
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assertEqual(MCP23017_PIN_ERROR, MCP.lastError());
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assertEqual(MCP23017_OK, MCP.lastError());
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MCP.digitalWrite(16, 1);
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assertEqual(MCP23017_PIN_ERROR, MCP.lastError());
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assertEqual(MCP23017_OK, MCP.lastError());
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uint8_t y = MCP.digitalRead(16);
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assertEqual(MCP23017_PIN_ERROR, MCP.lastError());
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assertEqual(MCP23017_OK, MCP.lastError());
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// MCP23017_VALUE_ERROR - 3 is not INPUT, INPUT_PULLUP, OUTPUT)
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MCP.pinMode(0, 3);
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assertEqual(MCP23017_VALUE_ERROR, MCP.lastError());
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assertEqual(MCP23017_OK, MCP.lastError());
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// MCP23017_PORT_ERROR
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MCP.pinMode8(2, 0xF0);
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assertEqual(MCP23017_PORT_ERROR, MCP.lastError());
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assertEqual(MCP23017_OK, MCP.lastError());
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MCP.write8(2, 0xF0);
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assertEqual(MCP23017_PORT_ERROR, MCP.lastError());
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assertEqual(MCP23017_OK, MCP.lastError());
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uint8_t x = MCP.read8(2);
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assertEqual(MCP23017_PORT_ERROR, MCP.lastError());
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assertEqual(MCP23017_OK, MCP.lastError());
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}
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unittest_main()
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// --------
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