buftvtots.c revision 1.1.1.3 
1/*	$NetBSD: buftvtots.c,v 1.1.1.3 2015/10/23 17:47:45 christos Exp $	*/
2
3#include "config.h"
4#include "ntp_types.h"
5#include "ntp_stdlib.h"
6
7#include "lfptest.h"
8
9#include "ntp_unixtime.h"
10
11#include "unity.h"
12
13/* Required for Solaris. */
14#include <math.h>
15
16void test_ZeroBuffer(void);
17void test_IntegerAndFractionalBuffer(void);
18void test_IllegalMicroseconds(void);
19void test_AlwaysFalseOnWindows(void);
20
21
22void
23test_ZeroBuffer(void) {
24#ifndef SYS_WINNT
25	const struct timeval input = {0, 0};
26	const l_fp expected = {{0 + JAN_1970}, 0};
27
28	l_fp actual;
29
30	TEST_ASSERT_TRUE(buftvtots((const char*)(&input), &actual));
31	TEST_ASSERT_TRUE(IsEqual(expected, actual));
32#else
33	TEST_IGNORE_MESSAGE("Test only for Windows, skipping...");
34#endif
35}
36
37void
38test_IntegerAndFractionalBuffer(void) {
39#ifndef SYS_WINNT
40	const struct timeval input = {5, 500000}; /* 5.5 */
41	const l_fp expected = {{5 + JAN_1970}, HALF};
42	double expectedDouble, actualDouble;
43	l_fp actual;
44
45	TEST_ASSERT_TRUE(buftvtots((const char*)(&input), &actual));
46
47	/* Compare the fractional part with an absolute error given. */
48	TEST_ASSERT_EQUAL(expected.l_ui, actual.l_ui);
49
50	M_LFPTOD(0, expected.l_uf, expectedDouble);
51	M_LFPTOD(0, actual.l_uf, actualDouble);
52
53	/* The error should be less than 0.5 us */
54	TEST_ASSERT_DOUBLE_WITHIN(0.0000005, expectedDouble, actualDouble);
55#else
56	TEST_IGNORE_MESSAGE("Test only for Windows, skipping...");
57#endif
58}
59
60void
61test_IllegalMicroseconds(void) {
62#ifndef SYS_WINNT
63	const struct timeval input = {0, 1100000}; /* > 999 999 microseconds. */
64
65	l_fp actual;
66
67	TEST_ASSERT_FALSE(buftvtots((const char*)(&input), &actual));
68#else
69	TEST_IGNORE_MESSAGE("Test only for Windows, skipping...");
70#endif
71}
72
73
74void
75test_AlwaysFalseOnWindows(void) {
76#ifdef SYS_WINNT
77	/*
78	 * Under Windows, buftvtots will just return
79	 * 0 (false).
80	 */
81	l_fp actual;
82	TEST_ASSERT_FALSE(buftvtots("", &actual));
83#else
84	TEST_IGNORE_MESSAGE("Non-Windows test, skipping...");
85#endif
86}
87
88