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https://github.com/RobTillaart/Arduino.git
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110 lines
2.9 KiB
C++
110 lines
2.9 KiB
C++
//
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// FILE: unit_test_001.cpp
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// AUTHOR: Rob Tillaart
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// DATE: 2020-12-03
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// PURPOSE: unit tests for the IEEE754tools.h
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// https://github.com/RobTillaart/IEEE754tools
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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 "IEEE754tools.h"
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unittest_setup()
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{
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fprintf(stderr, "IEEE754_VERSION: %s\n", (char*) IEEE754_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_all)
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{
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fprintf(stderr, "Convert PI to double and back\n");
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uint8_t ar[8];
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float p = PI;
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float2DoublePacked(p, ar);
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float q = doublePacked2Float(ar);
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assertEqualFloat(p, q, 0.0001);
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fprintf(stderr, "IEEE_NAN %f\n", 0.0 / 0.0);
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// assertTrue(IEEE_NAN(0.0 / 0.0)); // -nan ?
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fprintf(stderr, "IEEE_INF\n");
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assertEqual(1, IEEE_INF(exp(800)));
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assertEqual(-1, IEEE_INF(-exp(800)));
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assertEqual(0, IEEE_INF(PI));
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fprintf(stderr, "IEEE_PosINF\n");
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assertTrue(IEEE_PosINF(exp(800)));
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fprintf(stderr, "IEEE_NegINF\n");
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assertTrue(IEEE_NegINF(-exp(800)));
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// crash - AVR specific
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// fprintf(stderr, "IEEE_Sign\n");
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// assertTrue(IEEE_Sign(PI));
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// assertTrue(IEEE_Sign(-PI));
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//
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// fprintf(stderr, "IEEE_Exponent\n");
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// assertTrue(IEEE_Exponent(PI));
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//
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// fprintf(stderr, "IEEE_Mantisse\n");
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// assertTrue(IEEE_Mantisse(PI));
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// crash - AVR specific
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// fprintf(stderr, "IEEE_POW2\n");
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// float f = 2;
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// for (int i = 0; i < 20; i++)
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// {
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// fprintf(stderr, "%d\t%f\t", i, f);
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// assertEqualFloat(f, IEEE_POW2(1, i), 0.0001);
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// f *= 2;
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// }
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//
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// fprintf(stderr, "IEEE_POW2fast\n");
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// f = 2;
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// for (int i = 0; i < 20; i++)
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// {
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// fprintf(stderr, "%d\t%f\t", i, f);
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// assertEqualFloat(f, IEEE_POW2fast(1, i), 0.0001);
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// f *= 2;
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// }
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}
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unittest_main()
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// --------
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