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76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
/* $NetBSD: sfptostr.c,v 1.1.1.2 2015/07/10 13:11:14 christos Exp $ */
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/*
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* This file contains test for both fptoa and fptoms (which uses dofptoa),
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* since all these functions are very similar.
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*/
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#include "config.h"
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#include "ntp_fp.h"
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#include "unity.h"
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#define SFP_MAX_PRECISION 6
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void test_PositiveInteger(void)
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{
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s_fp test = 300 << 16; // exact 300.000000
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TEST_ASSERT_EQUAL_STRING("300.000000", fptoa(test, SFP_MAX_PRECISION));
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TEST_ASSERT_EQUAL_STRING("300000.000", fptoms(test, SFP_MAX_PRECISION));
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}
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void test_NegativeInteger(void)
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{
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s_fp test = -200 << 16; // exact -200.000000
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TEST_ASSERT_EQUAL_STRING("-200.000000", fptoa(test, SFP_MAX_PRECISION));
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TEST_ASSERT_EQUAL_STRING("-200000.000", fptoms(test, SFP_MAX_PRECISION));
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}
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void test_PositiveIntegerPositiveFraction(void)
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{
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s_fp test = (300 << 16) + (1 << 15); // 300 + 0.5
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TEST_ASSERT_EQUAL_STRING("300.500000", fptoa(test, SFP_MAX_PRECISION));
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TEST_ASSERT_EQUAL_STRING("300500.000", fptoms(test, SFP_MAX_PRECISION));
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}
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void test_NegativeIntegerNegativeFraction(void)
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{
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s_fp test = (-200 << 16) - (1 << 15); // -200 - 0.5
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TEST_ASSERT_EQUAL_STRING("-200.500000", fptoa(test, SFP_MAX_PRECISION));
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TEST_ASSERT_EQUAL_STRING("-200500.000", fptoms(test, SFP_MAX_PRECISION));
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}
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void test_PositiveIntegerNegativeFraction(void)
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{
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s_fp test = (300 << 16) - (1 << 14); // 300 - 0.25
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TEST_ASSERT_EQUAL_STRING("299.750000", fptoa(test, SFP_MAX_PRECISION));
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TEST_ASSERT_EQUAL_STRING("299750.000", fptoms(test, SFP_MAX_PRECISION));
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}
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void test_NegativeIntegerPositiveFraction(void)
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{
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s_fp test = (-200 << 16) + (1 << 14)*3; // -200 + 0.75
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TEST_ASSERT_EQUAL_STRING("-199.250000", fptoa(test, SFP_MAX_PRECISION));
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TEST_ASSERT_EQUAL_STRING("-199250.000", fptoms(test, SFP_MAX_PRECISION));
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}
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void test_SingleDecimalInteger(void)
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{
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s_fp test = 300 << 16; // 300
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TEST_ASSERT_EQUAL_STRING("300.0", fptoa(test, 1));
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TEST_ASSERT_EQUAL_STRING("300000.0", fptoms(test, 1));
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}
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void test_SingleDecimalRounding(void)
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{
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s_fp test = (2 << 16) + (1 << 14)*3; // 2 + 0.25*3 = 2.75
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TEST_ASSERT_EQUAL_STRING("2.8", fptoa(test, 1));
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TEST_ASSERT_EQUAL_STRING("2750.0", fptoms(test, 1));
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}
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