1/*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include <errno.h>
17#include <float.h>
18#include <stdio.h>
19#include <string.h>
20#include <wchar.h>
21#include "math.h"
22#include "test.h"
23
24#define EXPECT_FLOAT_EQ(a, b)                                              \
25    do {                                                                   \
26        if (!(fabsf(a - b) < FLT_EPSILON))                                 \
27            t_error("%s failed: %f is not equal to %f\n", __func__, a, b); \
28    } while (0)
29
30/**
31 * @tc.name      : wcstof_0100
32 * @tc.desc      : Convert wide string to float type
33 * @tc.level     : Level 0
34 */
35void wcstof_0100(void)
36{
37    wchar_t str0[] = L"3.14wcstof";
38    wchar_t *end = NULL;
39    const float target = 3.14f;
40    wchar_t str1[] = L"wcstof";
41    float val = wcstof(str0, &end);
42    EXPECT_FLOAT_EQ(val, target);
43    if (wcscmp(end, str1)) {
44        t_error("%s the result of comparing two strings should be equal", __func__);
45    }
46}
47
48/**
49 * @tc.name      : wcstof_0200
50 * @tc.desc      : Convert wide string to float type with no end string characters
51 * @tc.level     : Level 1
52 */
53void wcstof_0200(void)
54{
55    wchar_t str[] = L"3.14";
56    wchar_t *end = NULL;
57    const float target = 3.14f;
58    float val = wcstof(str, &end);
59    EXPECT_FLOAT_EQ(val, target);
60}
61
62/**
63 * @tc.name      : wcstof_0300
64 * @tc.desc      : Convert wide string to float type with whitespace present at the beginning
65 * @tc.level     : Level 1
66 */
67void wcstof_0300(void)
68{
69    wchar_t str[] = L"          3.14";
70    wchar_t *end = NULL;
71    const float target = 3.14f;
72    float val = wcstof(str, &end);
73    EXPECT_FLOAT_EQ(val, target);
74}
75
76/**
77 * @tc.name      : wcstof_0400
78 * @tc.desc      : Convert wide string to float type with string characters at the beginning
79 * @tc.level     : Level 2
80 */
81void wcstof_0400(void)
82{
83    wchar_t str[] = L"wcstof3.14";
84    wchar_t *end = NULL;
85    const float target = 3.14f;
86    float val = wcstof(str, &end);
87    if (val != 0) {
88        t_error("%s invalid conversion", __func__);
89    }
90}
91
92/**
93 * @tc.name      : wcstof_0500
94 * @tc.desc      : Convert wide string to negative number of type float
95 * @tc.level     : Level 1
96 */
97void wcstof_0500(void)
98{
99    wchar_t str[] = L"-3.14";
100    wchar_t *end = NULL;
101    const float target = -3.14f;
102    float val = wcstof(str, &end);
103    EXPECT_FLOAT_EQ(val, target);
104}
105
106/**
107 * @tc.name      : wcstof_0600
108 * @tc.desc      : Convert wide string to negative number of type float
109 * @tc.level     : Level 1
110 */
111void wcstof_0600(void)
112{
113    wchar_t str[] = L"0X1.BC70A3D70A3D7P+6";
114    wchar_t *end = NULL;
115    float val = wcstof(str, &end);
116    const float target = 111.11f;
117    EXPECT_FLOAT_EQ(val, target);
118}
119
120/**
121 * @tc.name      : wcstof_0700
122 * @tc.desc      : The converted value is greater than float max
123 * @tc.level     : Level 2
124 */
125void wcstof_0700(void)
126{
127    wchar_t str[] = L"1.18973e+4932";
128    wchar_t *end = NULL;
129    float val = wcstof(str, &end);
130    if (errno != ERANGE) {
131        t_error("%s errno is not set", __func__);
132    }
133    if (val != INFINITY) {
134        t_error("%s val is not equal to inf", __func__);
135    }
136}
137
138int main(int argc, char *argv[])
139{
140    wcstof_0100();
141    wcstof_0200();
142    wcstof_0300();
143    wcstof_0400();
144    wcstof_0500();
145    wcstof_0600();
146    wcstof_0700();
147    return t_status;
148}