1 #include "config.h"
2
3 #include <ntp.h>
4 #include <ntp_fp.h>
5 #include <refidsmear.h>
6
7 //#include "ntp_stdlib.h"
8 //#include "ntp_calendar.h"
9
10 #include "unity.h"
11
12 #include <stdio.h>
13
14 /*
15 * we want to test a refid format of:
16 * 254.x.y.x
17 *
18 * where x.y.z are 24 bits containing 2 (signed) integer bits
19 * and 22 fractional bits.
20 *
21 * we want functions to convert to/from this format, with unit tests.
22 *
23 * Interesting test cases include:
24 * 254.0.0.0
25 * 254.0.0.1
26 * 254.127.255.255
27 * 254.128.0.0
28 * 254.255.255.255
29 */
30
31
32 void setUp(void);
33 void rtol(uint32_t r, char *es);
34 void rtoltor(uint32_t er, char *es);
35 void ltor(l_fp l, char *er);
36 void test_refidsmear(void);
37
38
39 void
setUp(void)40 setUp(void)
41 {
42 init_lib();
43
44 return;
45 }
46
47 void
rtol(uint32_t r,char * es)48 rtol(uint32_t r, char *es)
49 {
50 l_fp l;
51 char *as;
52 char msg[100];
53
54 TEST_ASSERT_NOT_NULL(es);
55
56 snprintf(msg, 100, "rtol was called with r=%#.8x, es=%s", r, es);
57
58 l = convertRefIDToLFP(htonl(r));
59 as = lfptoa(&l, 8);
60
61 //printf("refid %#x, smear %s\n", r, as);
62
63 TEST_ASSERT_NOT_NULL_MESSAGE(as, msg);
64 TEST_ASSERT_EQUAL_STRING_MESSAGE(es, as, msg);
65
66 return;
67 }
68
69
70 void
rtoltor(uint32_t er,char * es)71 rtoltor(uint32_t er, char *es)
72 {
73 l_fp l;
74 char *as;
75 uint32_t ar;
76 char msg[100];
77
78 TEST_ASSERT_NOT_NULL(es);
79
80 snprintf(msg, 100, "rtoltor was called with er=%#.8x, es=%s", er, es);
81
82 l = convertRefIDToLFP(htonl(er));
83 as = lfptoa(&l, 8);
84
85 ar = convertLFPToRefID(l);
86
87 //printf("smear %s, refid %#.8x\n", lfptoa(&l, 8), ntohl(ar));
88
89 TEST_ASSERT_NOT_NULL_MESSAGE(as, msg);
90 TEST_ASSERT_EQUAL_STRING_MESSAGE(es, as, msg);
91 TEST_ASSERT_EQUAL_UINT_MESSAGE(er, ntohl(ar), msg);
92
93 return;
94 }
95
96
97 void
ltor(l_fp l,char * er)98 ltor(l_fp l, char *er)
99 {
100 uint32_t r;
101
102 printf("ltor: ");
103
104 r = convertLFPToRefID(l);
105 printf("smear %s, refid %#.8x\n", lfptoa(&l, 8), ntohl(r));
106
107 return;
108 }
109
110
test_refidsmear(void)111 void test_refidsmear(void)
112 {
113
114 rtol(0xfe800000, "-2.00000000");
115 rtol(0xfe800001, "-1.99999976");
116 rtol(0xfe8ffffe, "-1.75000048");
117 rtol(0xfe8fffff, "-1.75000024");
118 rtol(0xfef00000, "-0.25000000");
119 rtol(0xfef00001, "-0.24999976");
120 rtol(0xfefffffe, "-0.00000048");
121 rtol(0xfeffffff, "-0.00000024");
122
123 rtol(0xfe000000, "0.00000000");
124 rtol(0xfe000001, "0.00000024");
125 rtol(0xfe6ffffe, "1.74999952");
126 rtol(0xfe6fffff, "1.74999976");
127 rtol(0xfe700000, "1.75000000");
128 rtol(0xfe700001, "1.75000024");
129 rtol(0xfe7ffffe, "1.99999952");
130 rtol(0xfe7fffff, "1.99999976");
131
132 rtoltor(0xfe800000, "-2.00000000");
133 rtoltor(0xfe800001, "-1.99999976");
134 rtoltor(0xfe8ffffe, "-1.75000048");
135 rtoltor(0xfe8fffff, "-1.75000024");
136 rtoltor(0xfef00000, "-0.25000000");
137 rtoltor(0xfef00001, "-0.24999976");
138 rtoltor(0xfefffffe, "-0.00000048");
139 rtoltor(0xfeffffff, "-0.00000024");
140
141 rtoltor(0xfe000000, "0.00000000");
142 rtoltor(0xfe000001, "0.00000024");
143 rtoltor(0xfe6ffffe, "1.74999952");
144 rtoltor(0xfe6fffff, "1.74999976");
145 rtoltor(0xfe700000, "1.75000000");
146 rtoltor(0xfe700001, "1.75000024");
147 rtoltor(0xfe7ffffe, "1.99999952");
148 rtoltor(0xfe7fffff, "1.99999976");
149
150 return;
151 }
152