buftvtots.c revision 290001 
1#include "config.h"
2#include "ntp_types.h"
3#include "ntp_stdlib.h"
4
5#include "lfptest.h"
6
7#include "ntp_unixtime.h"
8
9#include "unity.h"
10
11/* Required for Solaris. */
12#include <math.h>
13
14void test_ZeroBuffer(void);
15void test_IntegerAndFractionalBuffer(void);
16void test_IllegalMicroseconds(void);
17void test_AlwaysFalseOnWindows(void);
18
19
20void
21test_ZeroBuffer(void) {
22#ifndef SYS_WINNT
23	const struct timeval input = {0, 0};
24	const l_fp expected = {{0 + JAN_1970}, 0};
25
26	l_fp actual;
27
28	TEST_ASSERT_TRUE(buftvtots((const char*)(&input), &actual));
29	TEST_ASSERT_TRUE(IsEqual(expected, actual));
30#else
31	TEST_IGNORE_MESSAGE("Test only for Windows, skipping...");
32#endif
33}
34
35void
36test_IntegerAndFractionalBuffer(void) {
37#ifndef SYS_WINNT
38	const struct timeval input = {5, 500000}; /* 5.5 */
39	const l_fp expected = {{5 + JAN_1970}, HALF};
40	double expectedDouble, actualDouble;
41	l_fp actual;
42
43	TEST_ASSERT_TRUE(buftvtots((const char*)(&input), &actual));
44
45	/* Compare the fractional part with an absolute error given. */
46	TEST_ASSERT_EQUAL(expected.l_ui, actual.l_ui);
47
48	M_LFPTOD(0, expected.l_uf, expectedDouble);
49	M_LFPTOD(0, actual.l_uf, actualDouble);
50
51	/* The error should be less than 0.5 us */
52	TEST_ASSERT_DOUBLE_WITHIN(0.0000005, expectedDouble, actualDouble);
53#else
54	TEST_IGNORE_MESSAGE("Test only for Windows, skipping...");
55#endif
56}
57
58void
59test_IllegalMicroseconds(void) {
60#ifndef SYS_WINNT
61	const struct timeval input = {0, 1100000}; /* > 999 999 microseconds. */
62
63	l_fp actual;
64
65	TEST_ASSERT_FALSE(buftvtots((const char*)(&input), &actual));
66#else
67	TEST_IGNORE_MESSAGE("Test only for Windows, skipping...");
68#endif
69}
70
71
72void
73test_AlwaysFalseOnWindows(void) {
74#ifdef SYS_WINNT
75	/*
76	 * Under Windows, buftvtots will just return
77	 * 0 (false).
78	 */
79	l_fp actual;
80	TEST_ASSERT_FALSE(buftvtots("", &actual));
81#else
82	TEST_IGNORE_MESSAGE("Non-Windows test, skipping...");
83#endif
84}
85
86