Bram Moolenaar | 453b576 | 2017-01-08 17:59:14 +0100 | [diff] [blame^] | 1 | " test float functions |
| 2 | |
| 3 | if !has('float') |
| 4 | finish |
| 5 | end |
| 6 | |
| 7 | func Test_abs() |
| 8 | call assert_equal(string(abs(1.23)), '1.23') |
| 9 | call assert_equal(string(abs(-1.23)), '1.23') |
| 10 | call assert_equal(string(abs(0.0)), '0.0') |
| 11 | call assert_equal(string(abs(1.0/(1.0/0.0))), '0.0') |
| 12 | call assert_equal(string(abs(-1.0/(1.0/0.0))), '0.0') |
| 13 | call assert_equal(string(abs(1.0/0.0)), 'inf') |
| 14 | call assert_equal(string(abs(-1.0/0.0)), 'inf') |
| 15 | call assert_equal(string(abs(0.0/0.0)), 'nan') |
| 16 | endfunc |
| 17 | |
| 18 | func Test_sqrt() |
| 19 | call assert_equal(string(sqrt(0.0)), '0.0') |
| 20 | call assert_equal(string(sqrt(2.0)), '1.414214') |
| 21 | call assert_equal(string(sqrt(1.0/0.0)), 'inf') |
| 22 | call assert_equal(string(sqrt(-1.0)), 'nan') |
| 23 | call assert_equal(string(sqrt(0.0/0.0)), 'nan') |
| 24 | endfunc |
| 25 | |
| 26 | func Test_log() |
| 27 | call assert_equal(string(log(1.0)), '0.0') |
| 28 | call assert_equal(string(log(0.5)), '-0.693147') |
| 29 | call assert_equal(string(log(0.0)), '-inf') |
| 30 | call assert_equal(string(log(-1.0)), 'nan') |
| 31 | call assert_equal(string(log(1.0/0.0)), 'inf') |
| 32 | call assert_equal(string(log(0.0/0.0)), 'nan') |
| 33 | endfunc |
| 34 | |
| 35 | func Test_log10() |
| 36 | call assert_equal(string(log10(1.0)), '0.0') |
| 37 | call assert_equal(string(log10(100.0)), '2.0') |
| 38 | call assert_equal(string(log10(120.0)), '2.079181') |
| 39 | call assert_equal(string(log10(0.0)), '-inf') |
| 40 | call assert_equal(string(log10(-1.0)), 'nan') |
| 41 | call assert_equal(string(log10(1.0/0.0)), 'inf') |
| 42 | call assert_equal(string(log10(0.0/0.0)), 'nan') |
| 43 | endfunc |
| 44 | |
| 45 | func Test_exp() |
| 46 | call assert_equal(string(exp(0.0)), '1.0') |
| 47 | call assert_equal(string(exp(2.0)), '7.389056') |
| 48 | call assert_equal(string(exp(-1.0)),'0.367879') |
| 49 | call assert_equal(string(exp(1.0/0.0)), 'inf') |
| 50 | call assert_equal(string(exp(-1.0/0.0)), '0.0') |
| 51 | call assert_equal(string(exp(0.0/0.0)), 'nan') |
| 52 | endfunc |
| 53 | |
| 54 | func Test_sin() |
| 55 | call assert_equal(string(sin(0.0)), '0.0') |
| 56 | call assert_equal(string(sin(1.0)), '0.841471') |
| 57 | call assert_equal(string(sin(-0.5)), '-0.479426') |
| 58 | call assert_equal(string(sin(0.0/0.0)), 'nan') |
| 59 | call assert_equal(string(sin(1.0/0.0)), 'nan') |
| 60 | call assert_equal(string(sin(1.0/(1.0/0.0))), '0.0') |
| 61 | call assert_equal(string(sin(-1.0/(1.0/0.0))), '-0.0') |
| 62 | endfunc |
| 63 | |
| 64 | func Test_asin() |
| 65 | call assert_equal(string(asin(0.0)), '0.0') |
| 66 | call assert_equal(string(asin(1.0)), '1.570796') |
| 67 | call assert_equal(string(asin(-0.5)), '-0.523599') |
| 68 | call assert_equal(string(asin(1.1)), 'nan') |
| 69 | call assert_equal(string(asin(1.0/0.0)), 'nan') |
| 70 | call assert_equal(string(asin(0.0/0.0)), 'nan') |
| 71 | endfunc |
| 72 | |
| 73 | func Test_sinh() |
| 74 | call assert_equal(string(sinh(0.0)), '0.0') |
| 75 | call assert_equal(string(sinh(0.5)), '0.521095') |
| 76 | call assert_equal(string(sinh(-0.9)), '-1.026517') |
| 77 | call assert_equal(string(sinh(1.0/0.0)), 'inf') |
| 78 | call assert_equal(string(sinh(-1.0/0.0)), '-inf') |
| 79 | call assert_equal(string(sinh(0.0/0.0)), 'nan') |
| 80 | endfunc |
| 81 | |
| 82 | func Test_cos() |
| 83 | call assert_equal(string(cos(0.0)), '1.0') |
| 84 | call assert_equal(string(cos(1.0)), '0.540302') |
| 85 | call assert_equal(string(cos(-0.5)), '0.877583') |
| 86 | call assert_equal(string(cos(0.0/0.0)), 'nan') |
| 87 | call assert_equal(string(cos(1.0/0.0)), 'nan') |
| 88 | endfunc |
| 89 | |
| 90 | func Test_acos() |
| 91 | call assert_equal(string(acos(0.0)), '1.570796') |
| 92 | call assert_equal(string(acos(1.0)), '0.0') |
| 93 | call assert_equal(string(acos(-1.0)), '3.141593') |
| 94 | call assert_equal(string(acos(-0.5)), '2.094395') |
| 95 | call assert_equal(string(acos(1.1)), 'nan') |
| 96 | call assert_equal(string(acos(1.0/0.0)), 'nan') |
| 97 | call assert_equal(string(acos(0.0/0.0)), 'nan') |
| 98 | endfunc |
| 99 | |
| 100 | func Test_cosh() |
| 101 | call assert_equal(string(cosh(0.0)), '1.0') |
| 102 | call assert_equal(string(cosh(0.5)), '1.127626') |
| 103 | call assert_equal(string(cosh(1.0/0.0)), 'inf') |
| 104 | call assert_equal(string(cosh(-1.0/0.0)), 'inf') |
| 105 | call assert_equal(string(cosh(0.0/0.0)), 'nan') |
| 106 | endfunc |
| 107 | |
| 108 | func Test_tan() |
| 109 | call assert_equal(string(tan(0.0)), '0.0') |
| 110 | call assert_equal(string(tan(0.5)), '0.546302') |
| 111 | call assert_equal(string(tan(-0.5)), '-0.546302') |
| 112 | call assert_equal(string(tan(1.0/0.0)), 'nan') |
| 113 | call assert_equal(string(cos(0.0/0.0)), 'nan') |
| 114 | call assert_equal(string(tan(1.0/(1.0/0.0))), '0.0') |
| 115 | call assert_equal(string(tan(-1.0/(1.0/0.0))), '-0.0') |
| 116 | endfunc |
| 117 | |
| 118 | func Test_atan() |
| 119 | call assert_equal(string(atan(0.0)), '0.0') |
| 120 | call assert_equal(string(atan(0.5)), '0.463648') |
| 121 | call assert_equal(string(atan(-1.0)), '-0.785398') |
| 122 | call assert_equal(string(atan(1.0/0.0)), '1.570796') |
| 123 | call assert_equal(string(atan(-1.0/0.0)), '-1.570796') |
| 124 | call assert_equal(string(atan(0.0/0.0)), 'nan') |
| 125 | endfunc |
| 126 | |
| 127 | func Test_atan2() |
| 128 | call assert_equal(string(atan2(-1, -1)), '-2.356194') |
| 129 | call assert_equal(string(atan2(1, -1)), '2.356194') |
| 130 | call assert_equal(string(atan2(1.0, 1.0/0.0)), '0.0') |
| 131 | call assert_equal(string(atan2(1.0/0.0, 1.0)), '1.570796') |
| 132 | call assert_equal(string(atan2(0.0/0.0, 1.0)), 'nan') |
| 133 | endfunc |
| 134 | |
| 135 | func Test_tanh() |
| 136 | call assert_equal(string(tanh(0.0)), '0.0') |
| 137 | call assert_equal(string(tanh(0.5)), '0.462117') |
| 138 | call assert_equal(string(tanh(-1.0)), '-0.761594') |
| 139 | call assert_equal(string(tanh(1.0/0.0)), '1.0') |
| 140 | call assert_equal(string(tanh(-1.0/0.0)), '-1.0') |
| 141 | call assert_equal(string(tanh(0.0/0.0)), 'nan') |
| 142 | endfunc |
| 143 | |
| 144 | func Test_fmod() |
| 145 | call assert_equal(string(fmod(12.33, 1.22)), '0.13') |
| 146 | call assert_equal(string(fmod(-12.33, 1.22)), '-0.13') |
| 147 | call assert_equal(string(fmod(1.0/0.0, 1.0)), 'nan') |
| 148 | call assert_equal(string(fmod(1.0, 1.0/0.0)), '1.0') |
| 149 | call assert_equal(string(fmod(1.0, 0.0)), 'nan') |
| 150 | endfunc |
| 151 | |
| 152 | func Test_pow() |
| 153 | call assert_equal(string(pow(0.0, 0.0)), '1.0') |
| 154 | call assert_equal(string(pow(2.0, 3.0)), '8.0') |
| 155 | call assert_equal(string(pow(2.0, 0.0/0.0)), 'nan') |
| 156 | call assert_equal(string(pow(0.0/0.0, 3.0)), 'nan') |
| 157 | call assert_equal(string(pow(0.0/0.0, 3.0)), 'nan') |
| 158 | call assert_equal(string(pow(2.0, 1.0/0.0)), 'inf') |
| 159 | call assert_equal(string(pow(1.0/0.0, 3.0)), 'inf') |
| 160 | endfunc |
| 161 | |
| 162 | func Test_str2float() |
| 163 | call assert_equal(string(str2float('1')), '1.0') |
| 164 | call assert_equal(string(str2float('1.23')), '1.23') |
| 165 | call assert_equal(string(str2float('1.23abc')), '1.23') |
| 166 | call assert_equal(string(str2float('1e40')), '1.0e40') |
| 167 | call assert_equal(string(str2float('1e1000')), 'inf') |
| 168 | call assert_equal(string(str2float('inf')), 'inf') |
| 169 | call assert_equal(string(str2float('-inf')), '-inf') |
| 170 | call assert_equal(string(str2float('Inf')), 'inf') |
| 171 | call assert_equal(string(str2float('nan')), 'nan') |
| 172 | call assert_equal(string(str2float('NaN')), 'nan') |
| 173 | endfunc |
| 174 | |
| 175 | func Test_floor() |
| 176 | call assert_equal(string(floor(2.0)), '2.0') |
| 177 | call assert_equal(string(floor(2.11)), '2.0') |
| 178 | call assert_equal(string(floor(2.99)), '2.0') |
| 179 | call assert_equal(string(floor(-2.11)), '-3.0') |
| 180 | call assert_equal(string(floor(-2.99)), '-3.0') |
| 181 | call assert_equal(string(floor(0.0/0.0)), 'nan') |
| 182 | call assert_equal(string(floor(1.0/0.0)), 'inf') |
| 183 | call assert_equal(string(floor(-1.0/0.0)), '-inf') |
| 184 | endfunc |
| 185 | |
| 186 | func Test_ceil() |
| 187 | call assert_equal(string(ceil(2.0)), '2.0') |
| 188 | call assert_equal(string(ceil(2.11)), '3.0') |
| 189 | call assert_equal(string(ceil(2.99)), '3.0') |
| 190 | call assert_equal(string(ceil(-2.11)), '-2.0') |
| 191 | call assert_equal(string(ceil(-2.99)), '-2.0') |
| 192 | call assert_equal(string(ceil(0.0/0.0)), 'nan') |
| 193 | call assert_equal(string(ceil(1.0/0.0)), 'inf') |
| 194 | call assert_equal(string(ceil(-1.0/0.0)), '-inf') |
| 195 | endfunc |
| 196 | |
| 197 | func Test_round() |
| 198 | call assert_equal(string(round(2.1)), '2.0') |
| 199 | call assert_equal(string(round(2.5)), '3.0') |
| 200 | call assert_equal(string(round(2.9)), '3.0') |
| 201 | call assert_equal(string(round(-2.1)), '-2.0') |
| 202 | call assert_equal(string(round(-2.5)), '-3.0') |
| 203 | call assert_equal(string(round(-2.9)), '-3.0') |
| 204 | call assert_equal(string(round(0.0/0.0)), 'nan') |
| 205 | call assert_equal(string(round(1.0/0.0)), 'inf') |
| 206 | call assert_equal(string(round(-1.0/0.0)), '-inf') |
| 207 | endfunc |
| 208 | |
| 209 | func Test_trunc() |
| 210 | call assert_equal(string(trunc(2.1)), '2.0') |
| 211 | call assert_equal(string(trunc(2.5)), '2.0') |
| 212 | call assert_equal(string(trunc(2.9)), '2.0') |
| 213 | call assert_equal(string(trunc(-2.1)), '-2.0') |
| 214 | call assert_equal(string(trunc(-2.5)), '-2.0') |
| 215 | call assert_equal(string(trunc(-2.9)), '-2.0') |
| 216 | call assert_equal(string(trunc(0.0/0.0)), 'nan') |
| 217 | call assert_equal(string(trunc(1.0/0.0)), 'inf') |
| 218 | call assert_equal(string(trunc(-1.0/0.0)), '-inf') |
| 219 | endfunc |
| 220 | |
| 221 | func Test_isnan() |
| 222 | call assert_equal(isnan(1.0), 0) |
| 223 | call assert_equal(isnan(0.0/0.0), 1) |
| 224 | call assert_equal(isnan(1.0/0.0), 0) |
| 225 | call assert_equal(isnan('a'), 0) |
| 226 | call assert_equal(isnan([]), 0) |
| 227 | endfunc |