1" test float functions 2 3source check.vim 4CheckFeature float 5 6func Test_abs() 7 call assert_equal('1.23', string(abs(1.23))) 8 call assert_equal('1.23', string(abs(-1.23))) 9 eval -1.23->abs()->string()->assert_equal('1.23') 10 11 call assert_equal('0.0', string(abs(0.0))) 12 call assert_equal('0.0', string(abs(1.0/(1.0/0.0)))) 13 call assert_equal('0.0', string(abs(-1.0/(1.0/0.0)))) 14 call assert_equal('inf', string(abs(1.0/0.0))) 15 call assert_equal('inf', string(abs(-1.0/0.0))) 16 call assert_equal('nan', string(abs(0.0/0.0))) 17 call assert_equal('12', string(abs('12abc'))) 18 call assert_equal('12', string(abs('-12abc'))) 19 call assert_fails("call abs([])", 'E745:') 20 call assert_fails("call abs({})", 'E728:') 21 call assert_fails("call abs(function('string'))", 'E703:') 22endfunc 23 24func Test_sqrt() 25 call assert_equal('0.0', string(sqrt(0.0))) 26 call assert_equal('1.414214', string(sqrt(2.0))) 27 eval 2.0->sqrt()->string()->assert_equal('1.414214') 28 call assert_equal('inf', string(sqrt(1.0/0.0))) 29 call assert_equal('nan', string(sqrt(-1.0))) 30 call assert_equal('nan', string(sqrt(0.0/0.0))) 31 call assert_fails('call sqrt("")', 'E808:') 32endfunc 33 34func Test_log() 35 call assert_equal('0.0', string(log(1.0))) 36 call assert_equal('-0.693147', string(log(0.5))) 37 eval 0.5->log()->string()->assert_equal('-0.693147') 38 call assert_equal('-inf', string(log(0.0))) 39 call assert_equal('nan', string(log(-1.0))) 40 call assert_equal('inf', string(log(1.0/0.0))) 41 call assert_equal('nan', string(log(0.0/0.0))) 42 call assert_fails('call log("")', 'E808:') 43endfunc 44 45func Test_log10() 46 call assert_equal('0.0', string(log10(1.0))) 47 call assert_equal('2.0', string(log10(100.0))) 48 call assert_equal('2.079181', string(log10(120.0))) 49 eval 120.0->log10()->string()->assert_equal('2.079181') 50 call assert_equal('-inf', string(log10(0.0))) 51 call assert_equal('nan', string(log10(-1.0))) 52 call assert_equal('inf', string(log10(1.0/0.0))) 53 call assert_equal('nan', string(log10(0.0/0.0))) 54 call assert_fails('call log10("")', 'E808:') 55endfunc 56 57func Test_exp() 58 call assert_equal('1.0', string(exp(0.0))) 59 call assert_equal('7.389056', string(exp(2.0))) 60 call assert_equal('0.367879', string(exp(-1.0))) 61 eval -1.0->exp()->string()->assert_equal('0.367879') 62 call assert_equal('inf', string(exp(1.0/0.0))) 63 call assert_equal('0.0', string(exp(-1.0/0.0))) 64 call assert_equal('nan', string(exp(0.0/0.0))) 65 call assert_fails('call exp("")', 'E808:') 66endfunc 67 68func Test_sin() 69 call assert_equal('0.0', string(sin(0.0))) 70 call assert_equal('0.841471', string(sin(1.0))) 71 call assert_equal('-0.479426', string(sin(-0.5))) 72 eval -0.5->sin()->string()->assert_equal('-0.479426') 73 call assert_equal('nan', string(sin(0.0/0.0))) 74 call assert_equal('nan', string(sin(1.0/0.0))) 75 call assert_equal('0.0', string(sin(1.0/(1.0/0.0)))) 76 call assert_equal('-0.0', string(sin(-1.0/(1.0/0.0)))) 77 call assert_fails('call sin("")', 'E808:') 78endfunc 79 80func Test_asin() 81 call assert_equal('0.0', string(asin(0.0))) 82 call assert_equal('1.570796', string(asin(1.0))) 83 eval 1.0->asin()->string()->assert_equal('1.570796') 84 85 call assert_equal('-0.523599', string(asin(-0.5))) 86 call assert_equal('nan', string(asin(1.1))) 87 call assert_equal('nan', string(asin(1.0/0.0))) 88 call assert_equal('nan', string(asin(0.0/0.0))) 89 call assert_fails('call asin("")', 'E808:') 90endfunc 91 92func Test_sinh() 93 call assert_equal('0.0', string(sinh(0.0))) 94 call assert_equal('0.521095', string(sinh(0.5))) 95 call assert_equal('-1.026517', string(sinh(-0.9))) 96 eval -0.9->sinh()->string()->assert_equal('-1.026517') 97 call assert_equal('inf', string(sinh(1.0/0.0))) 98 call assert_equal('-inf', string(sinh(-1.0/0.0))) 99 call assert_equal('nan', string(sinh(0.0/0.0))) 100 call assert_fails('call sinh("")', 'E808:') 101endfunc 102 103func Test_cos() 104 call assert_equal('1.0', string(cos(0.0))) 105 call assert_equal('0.540302', string(cos(1.0))) 106 call assert_equal('0.877583', string(cos(-0.5))) 107 eval -0.5->cos()->string()->assert_equal('0.877583') 108 call assert_equal('nan', string(cos(0.0/0.0))) 109 call assert_equal('nan', string(cos(1.0/0.0))) 110 call assert_fails('call cos("")', 'E808:') 111endfunc 112 113func Test_acos() 114 call assert_equal('1.570796', string(acos(0.0))) 115 call assert_equal('0.0', string(acos(1.0))) 116 call assert_equal('3.141593', string(acos(-1.0))) 117 eval -1.0->acos()->string()->assert_equal('3.141593') 118 call assert_equal('2.094395', string(acos(-0.5))) 119 call assert_equal('nan', string(acos(1.1))) 120 call assert_equal('nan', string(acos(1.0/0.0))) 121 call assert_equal('nan', string(acos(0.0/0.0))) 122 call assert_fails('call acos("")', 'E808:') 123endfunc 124 125func Test_cosh() 126 call assert_equal('1.0', string(cosh(0.0))) 127 call assert_equal('1.127626', string(cosh(0.5))) 128 eval 0.5->cosh()->string()->assert_equal('1.127626') 129 call assert_equal('inf', string(cosh(1.0/0.0))) 130 call assert_equal('inf', string(cosh(-1.0/0.0))) 131 call assert_equal('nan', string(cosh(0.0/0.0))) 132 call assert_fails('call cosh("")', 'E808:') 133endfunc 134 135func Test_tan() 136 call assert_equal('0.0', string(tan(0.0))) 137 call assert_equal('0.546302', string(tan(0.5))) 138 call assert_equal('-0.546302', string(tan(-0.5))) 139 eval -0.5->tan()->string()->assert_equal('-0.546302') 140 call assert_equal('nan', string(tan(1.0/0.0))) 141 call assert_equal('nan', string(cos(0.0/0.0))) 142 call assert_equal('0.0', string(tan(1.0/(1.0/0.0)))) 143 call assert_equal('-0.0', string(tan(-1.0/(1.0/0.0)))) 144 call assert_fails('call tan("")', 'E808:') 145endfunc 146 147func Test_atan() 148 call assert_equal('0.0', string(atan(0.0))) 149 call assert_equal('0.463648', string(atan(0.5))) 150 call assert_equal('-0.785398', string(atan(-1.0))) 151 eval -1.0->atan()->string()->assert_equal('-0.785398') 152 call assert_equal('1.570796', string(atan(1.0/0.0))) 153 call assert_equal('-1.570796', string(atan(-1.0/0.0))) 154 call assert_equal('nan', string(atan(0.0/0.0))) 155 call assert_fails('call atan("")', 'E808:') 156endfunc 157 158func Test_atan2() 159 call assert_equal('-2.356194', string(atan2(-1, -1))) 160 call assert_equal('2.356194', string(atan2(1, -1))) 161 call assert_equal('0.0', string(atan2(1.0, 1.0/0.0))) 162 eval 1.0->atan2(1.0/0.0)->string()->assert_equal('0.0') 163 call assert_equal('1.570796', string(atan2(1.0/0.0, 1.0))) 164 call assert_equal('nan', string(atan2(0.0/0.0, 1.0))) 165 call assert_fails('call atan2("", -1)', 'E808:') 166 call assert_fails('call atan2(-1, "")', 'E808:') 167endfunc 168 169func Test_tanh() 170 call assert_equal('0.0', string(tanh(0.0))) 171 call assert_equal('0.462117', string(tanh(0.5))) 172 call assert_equal('-0.761594', string(tanh(-1.0))) 173 eval -1.0->tanh()->string()->assert_equal('-0.761594') 174 call assert_equal('1.0', string(tanh(1.0/0.0))) 175 call assert_equal('-1.0', string(tanh(-1.0/0.0))) 176 call assert_equal('nan', string(tanh(0.0/0.0))) 177 call assert_fails('call tanh("")', 'E808:') 178endfunc 179 180func Test_fmod() 181 call assert_equal('0.13', string(fmod(12.33, 1.22))) 182 call assert_equal('-0.13', string(fmod(-12.33, 1.22))) 183 call assert_equal('nan', string(fmod(1.0/0.0, 1.0))) 184 eval (1.0/0.0)->fmod(1.0)->string()->assert_equal('nan') 185 " On Windows we get "nan" instead of 1.0, accept both. 186 let res = string(fmod(1.0, 1.0/0.0)) 187 if res != 'nan' 188 call assert_equal('1.0', res) 189 endif 190 call assert_equal('nan', string(fmod(1.0, 0.0))) 191 call assert_fails("call fmod('', 1.22)", 'E808:') 192 call assert_fails("call fmod(12.33, '')", 'E808:') 193endfunc 194 195func Test_pow() 196 call assert_equal('1.0', string(pow(0.0, 0.0))) 197 call assert_equal('8.0', string(pow(2.0, 3.0))) 198 eval 2.0->pow(3.0)->string()->assert_equal('8.0') 199 call assert_equal('nan', string(pow(2.0, 0.0/0.0))) 200 call assert_equal('nan', string(pow(0.0/0.0, 3.0))) 201 call assert_equal('nan', string(pow(0.0/0.0, 3.0))) 202 call assert_equal('inf', string(pow(2.0, 1.0/0.0))) 203 call assert_equal('inf', string(pow(1.0/0.0, 3.0))) 204 call assert_fails("call pow('', 2.0)", 'E808:') 205 call assert_fails("call pow(2.0, '')", 'E808:') 206endfunc 207 208func Test_str2float() 209 call assert_equal('1.0', string(str2float('1'))) 210 call assert_equal('1.0', string(str2float(' 1 '))) 211 call assert_equal('1.0', string(str2float(' 1.0 '))) 212 call assert_equal('1.23', string(str2float('1.23'))) 213 call assert_equal('1.23', string(str2float('1.23abc'))) 214 eval '1.23abc'->str2float()->string()->assert_equal('1.23') 215 call assert_equal('1.0e40', string(str2float('1e40'))) 216 call assert_equal('-1.23', string(str2float('-1.23'))) 217 call assert_equal('1.23', string(str2float(' + 1.23 '))) 218 219 call assert_equal('1.0', string(str2float('+1'))) 220 call assert_equal('1.0', string(str2float('+1'))) 221 call assert_equal('1.0', string(str2float(' +1 '))) 222 call assert_equal('1.0', string(str2float(' + 1 '))) 223 224 call assert_equal('-1.0', string(str2float('-1'))) 225 call assert_equal('-1.0', string(str2float('-1'))) 226 call assert_equal('-1.0', string(str2float(' -1 '))) 227 call assert_equal('-1.0', string(str2float(' - 1 '))) 228 229 call assert_equal('0.0', string(str2float('+0.0'))) 230 call assert_equal('-0.0', string(str2float('-0.0'))) 231 call assert_equal('inf', string(str2float('1e1000'))) 232 call assert_equal('inf', string(str2float('inf'))) 233 call assert_equal('-inf', string(str2float('-inf'))) 234 call assert_equal('inf', string(str2float('+inf'))) 235 call assert_equal('inf', string(str2float('Inf'))) 236 call assert_equal('inf', string(str2float(' +inf '))) 237 call assert_equal('nan', string(str2float('nan'))) 238 call assert_equal('nan', string(str2float('NaN'))) 239 call assert_equal('nan', string(str2float(' nan '))) 240 241 call assert_fails("call str2float(1.2)", 'E806:') 242 call assert_fails("call str2float([])", 'E730:') 243 call assert_fails("call str2float({})", 'E731:') 244 call assert_fails("call str2float(function('string'))", 'E729:') 245endfunc 246 247func Test_float2nr() 248 call assert_equal(1, float2nr(1.234)) 249 call assert_equal(123, float2nr(1.234e2)) 250 call assert_equal(12, float2nr(123.4e-1)) 251 eval 123.4e-1->float2nr()->assert_equal(12) 252 let max_number = 1/0 253 let min_number = -max_number 254 call assert_equal(max_number/2+1, float2nr(pow(2, 62))) 255 call assert_equal(max_number, float2nr(pow(2, 63))) 256 call assert_equal(max_number, float2nr(pow(2, 64))) 257 call assert_equal(min_number/2-1, float2nr(-pow(2, 62))) 258 call assert_equal(min_number, float2nr(-pow(2, 63))) 259 call assert_equal(min_number, float2nr(-pow(2, 64))) 260endfunc 261 262func Test_floor() 263 call assert_equal('2.0', string(floor(2.0))) 264 call assert_equal('2.0', string(floor(2.11))) 265 call assert_equal('2.0', string(floor(2.99))) 266 eval 2.99->floor()->string()->assert_equal('2.0') 267 call assert_equal('-3.0', string(floor(-2.11))) 268 call assert_equal('-3.0', string(floor(-2.99))) 269 call assert_equal('nan', string(floor(0.0/0.0))) 270 call assert_equal('inf', string(floor(1.0/0.0))) 271 call assert_equal('-inf', string(floor(-1.0/0.0))) 272 call assert_fails("call floor('')", 'E808:') 273endfunc 274 275func Test_ceil() 276 call assert_equal('2.0', string(ceil(2.0))) 277 call assert_equal('3.0', string(ceil(2.11))) 278 call assert_equal('3.0', string(ceil(2.99))) 279 call assert_equal('-2.0', string(ceil(-2.11))) 280 eval -2.11->ceil()->string()->assert_equal('-2.0') 281 call assert_equal('-2.0', string(ceil(-2.99))) 282 call assert_equal('nan', string(ceil(0.0/0.0))) 283 call assert_equal('inf', string(ceil(1.0/0.0))) 284 call assert_equal('-inf', string(ceil(-1.0/0.0))) 285 call assert_fails("call ceil('')", 'E808:') 286endfunc 287 288func Test_round() 289 call assert_equal('2.0', string(round(2.1))) 290 call assert_equal('3.0', string(round(2.5))) 291 call assert_equal('3.0', string(round(2.9))) 292 eval 2.9->round()->string()->assert_equal('3.0') 293 call assert_equal('-2.0', string(round(-2.1))) 294 call assert_equal('-3.0', string(round(-2.5))) 295 call assert_equal('-3.0', string(round(-2.9))) 296 call assert_equal('nan', string(round(0.0/0.0))) 297 call assert_equal('inf', string(round(1.0/0.0))) 298 call assert_equal('-inf', string(round(-1.0/0.0))) 299 call assert_fails("call round('')", 'E808:') 300endfunc 301 302func Test_trunc() 303 call assert_equal('2.0', string(trunc(2.1))) 304 call assert_equal('2.0', string(trunc(2.5))) 305 call assert_equal('2.0', string(trunc(2.9))) 306 eval 2.9->trunc()->string()->assert_equal('2.0') 307 call assert_equal('-2.0', string(trunc(-2.1))) 308 call assert_equal('-2.0', string(trunc(-2.5))) 309 call assert_equal('-2.0', string(trunc(-2.9))) 310 call assert_equal('nan', string(trunc(0.0/0.0))) 311 call assert_equal('inf', string(trunc(1.0/0.0))) 312 call assert_equal('-inf', string(trunc(-1.0/0.0))) 313 call assert_fails("call trunc('')", 'E808:') 314endfunc 315 316func Test_isinf() 317 call assert_equal(1, isinf(1.0/0.0)) 318 call assert_equal(-1, isinf(-1.0/0.0)) 319 eval (-1.0/0.0)->isinf()->assert_equal(-1) 320 call assert_false(isinf(1.0)) 321 call assert_false(isinf(0.0/0.0)) 322 call assert_false(isinf('a')) 323 call assert_false(isinf([])) 324 call assert_false(isinf({})) 325endfunc 326 327func Test_isnan() 328 call assert_true(isnan(0.0/0.0)) 329 call assert_false(isnan(1.0)) 330 call assert_false(isnan(1.0/0.0)) 331 eval (1.0/0.0)->isnan()->assert_false() 332 call assert_false(isnan(-1.0/0.0)) 333 call assert_false(isnan('a')) 334 call assert_false(isnan([])) 335 call assert_false(isnan({})) 336endfunc 337 338" This was converted from test65 339func Test_float_misc() 340 call assert_equal('123.456000', printf('%f', 123.456)) 341 call assert_equal('1.234560e+02', printf('%e', 123.456)) 342 call assert_equal('123.456', printf('%g', 123.456)) 343 " += 344 let v = 1.234 345 let v += 6.543 346 call assert_equal('7.777', printf('%g', v)) 347 let v = 1.234 348 let v += 5 349 call assert_equal('6.234', printf('%g', v)) 350 let v = 5 351 let v += 3.333 352 call assert_equal('8.333', string(v)) 353 " == 354 let v = 1.234 355 call assert_true(v == 1.234) 356 call assert_false(v == 1.2341) 357 " add-subtract 358 call assert_equal('5.234', printf('%g', 4 + 1.234)) 359 call assert_equal('-6.766', printf('%g', 1.234 - 8)) 360 " mult-div 361 call assert_equal('4.936', printf('%g', 4 * 1.234)) 362 call assert_equal('0.003241', printf('%g', 4.0 / 1234)) 363 " dict 364 call assert_equal("{'x': 1.234, 'y': -2.0e20}", string({'x': 1.234, 'y': -2.0e20})) 365 " list 366 call assert_equal('[-123.4, 2.0e-20]', string([-123.4, 2.0e-20])) 367endfunc 368 369" vim: shiftwidth=2 sts=2 expandtab 370