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Bram Moolenaar453b5762017-01-08 17:59:14 +01001" test float functions
2
Bram Moolenaarb46fecd2019-06-15 17:58:09 +02003source check.vim
4CheckFeature float
Bram Moolenaar453b5762017-01-08 17:59:14 +01005
6func Test_abs()
Bram Moolenaar62473612017-01-08 19:25:40 +01007 call assert_equal('1.23', string(abs(1.23)))
8 call assert_equal('1.23', string(abs(-1.23)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +02009 eval -1.23->abs()->string()->assert_equal('1.23')
10
Bram Moolenaar62473612017-01-08 19:25:40 +010011 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)))
Bram Moolenaar17aca702019-05-16 22:24:55 +020017 call assert_equal('12', string(abs('12abc')))
Bram Moolenaar87200412017-01-10 16:31:20 +010018 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:')
Bram Moolenaar453b5762017-01-08 17:59:14 +010022endfunc
23
24func Test_sqrt()
Bram Moolenaar62473612017-01-08 19:25:40 +010025 call assert_equal('0.0', string(sqrt(0.0)))
26 call assert_equal('1.414214', string(sqrt(2.0)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +020027 eval 2.0->sqrt()->string()->assert_equal('1.414214')
Bram Moolenaar62473612017-01-08 19:25:40 +010028 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +010031 call assert_fails('call sqrt("")', 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +010032endfunc
33
34func Test_log()
Bram Moolenaar62473612017-01-08 19:25:40 +010035 call assert_equal('0.0', string(log(1.0)))
36 call assert_equal('-0.693147', string(log(0.5)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +020037 eval 0.5->log()->string()->assert_equal('-0.693147')
Bram Moolenaar62473612017-01-08 19:25:40 +010038 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +010042 call assert_fails('call log("")', 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +010043endfunc
44
45func Test_log10()
Bram Moolenaar62473612017-01-08 19:25:40 +010046 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +020049 eval 120.0->log10()->string()->assert_equal('2.079181')
Bram Moolenaar62473612017-01-08 19:25:40 +010050 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +010054 call assert_fails('call log10("")', 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +010055endfunc
56
57func Test_exp()
Bram Moolenaar62473612017-01-08 19:25:40 +010058 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +020061 eval -1.0->exp()->string()->assert_equal('0.367879')
Bram Moolenaar62473612017-01-08 19:25:40 +010062 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +010065 call assert_fails('call exp("")', 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +010066endfunc
67
68func Test_sin()
Bram Moolenaar62473612017-01-08 19:25:40 +010069 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +020072 eval -0.5->sin()->string()->assert_equal('-0.479426')
Bram Moolenaar62473612017-01-08 19:25:40 +010073 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))))
Bram Moolenaar87200412017-01-10 16:31:20 +010077 call assert_fails('call sin("")', 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +010078endfunc
79
80func Test_asin()
Bram Moolenaar62473612017-01-08 19:25:40 +010081 call assert_equal('0.0', string(asin(0.0)))
82 call assert_equal('1.570796', string(asin(1.0)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +020083 eval 1.0->asin()->string()->assert_equal('1.570796')
84
Bram Moolenaar62473612017-01-08 19:25:40 +010085 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +010089 call assert_fails('call asin("")', 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +010090endfunc
91
92func Test_sinh()
Bram Moolenaar62473612017-01-08 19:25:40 +010093 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +020096 eval -0.9->sinh()->string()->assert_equal('-1.026517')
Bram Moolenaar62473612017-01-08 19:25:40 +010097 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +0100100 call assert_fails('call sinh("")', 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100101endfunc
102
103func Test_cos()
Bram Moolenaar62473612017-01-08 19:25:40 +0100104 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200107 eval -0.5->cos()->string()->assert_equal('0.877583')
Bram Moolenaar62473612017-01-08 19:25:40 +0100108 call assert_equal('nan', string(cos(0.0/0.0)))
109 call assert_equal('nan', string(cos(1.0/0.0)))
Bram Moolenaar87200412017-01-10 16:31:20 +0100110 call assert_fails('call cos("")', 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100111endfunc
112
113func Test_acos()
Bram Moolenaar62473612017-01-08 19:25:40 +0100114 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200117 eval -1.0->acos()->string()->assert_equal('3.141593')
Bram Moolenaar62473612017-01-08 19:25:40 +0100118 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +0100122 call assert_fails('call acos("")', 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100123endfunc
124
125func Test_cosh()
Bram Moolenaar62473612017-01-08 19:25:40 +0100126 call assert_equal('1.0', string(cosh(0.0)))
127 call assert_equal('1.127626', string(cosh(0.5)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200128 eval 0.5->cosh()->string()->assert_equal('1.127626')
Bram Moolenaar62473612017-01-08 19:25:40 +0100129 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +0100132 call assert_fails('call cosh("")', 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100133endfunc
134
135func Test_tan()
Bram Moolenaar62473612017-01-08 19:25:40 +0100136 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200139 eval -0.5->tan()->string()->assert_equal('-0.546302')
Bram Moolenaar62473612017-01-08 19:25:40 +0100140 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))))
Bram Moolenaar87200412017-01-10 16:31:20 +0100144 call assert_fails('call tan("")', 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100145endfunc
146
147func Test_atan()
Bram Moolenaar62473612017-01-08 19:25:40 +0100148 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200151 eval -1.0->atan()->string()->assert_equal('-0.785398')
Bram Moolenaar62473612017-01-08 19:25:40 +0100152 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +0100155 call assert_fails('call atan("")', 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100156endfunc
157
158func Test_atan2()
Bram Moolenaar62473612017-01-08 19:25:40 +0100159 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200162 eval 1.0->atan2(1.0/0.0)->string()->assert_equal('0.0')
Bram Moolenaar62473612017-01-08 19:25:40 +0100163 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +0100165 call assert_fails('call atan2("", -1)', 'E808:')
166 call assert_fails('call atan2(-1, "")', 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100167endfunc
168
169func Test_tanh()
Bram Moolenaar62473612017-01-08 19:25:40 +0100170 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200173 eval -1.0->tanh()->string()->assert_equal('-0.761594')
Bram Moolenaar62473612017-01-08 19:25:40 +0100174 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +0100177 call assert_fails('call tanh("")', 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100178endfunc
179
180func Test_fmod()
Bram Moolenaar62473612017-01-08 19:25:40 +0100181 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200184 eval (1.0/0.0)->fmod(1.0)->string()->assert_equal('nan')
Bram Moolenaar62473612017-01-08 19:25:40 +0100185 " 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +0100191 call assert_fails("call fmod('', 1.22)", 'E808:')
192 call assert_fails("call fmod(12.33, '')", 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100193endfunc
194
195func Test_pow()
Bram Moolenaar62473612017-01-08 19:25:40 +0100196 call assert_equal('1.0', string(pow(0.0, 0.0)))
197 call assert_equal('8.0', string(pow(2.0, 3.0)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200198 eval 2.0->pow(3.0)->string()->assert_equal('8.0')
Bram Moolenaar62473612017-01-08 19:25:40 +0100199 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +0100204 call assert_fails("call pow('', 2.0)", 'E808:')
205 call assert_fails("call pow(2.0, '')", 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100206endfunc
207
208func Test_str2float()
Bram Moolenaar62473612017-01-08 19:25:40 +0100209 call assert_equal('1.0', string(str2float('1')))
Bram Moolenaar08243d22017-01-10 16:12:29 +0100210 call assert_equal('1.0', string(str2float(' 1 ')))
211 call assert_equal('1.0', string(str2float(' 1.0 ')))
Bram Moolenaar62473612017-01-08 19:25:40 +0100212 call assert_equal('1.23', string(str2float('1.23')))
213 call assert_equal('1.23', string(str2float('1.23abc')))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200214 eval '1.23abc'->str2float()->string()->assert_equal('1.23')
Bram Moolenaar62473612017-01-08 19:25:40 +0100215 call assert_equal('1.0e40', string(str2float('1e40')))
Bram Moolenaar87200412017-01-10 16:31:20 +0100216 call assert_equal('-1.23', string(str2float('-1.23')))
217 call assert_equal('1.23', string(str2float(' + 1.23 ')))
Bram Moolenaar08243d22017-01-10 16:12:29 +0100218
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
Bram Moolenaar87200412017-01-10 16:31:20 +0100229 call assert_equal('0.0', string(str2float('+0.0')))
230 call assert_equal('-0.0', string(str2float('-0.0')))
Bram Moolenaar62473612017-01-08 19:25:40 +0100231 call assert_equal('inf', string(str2float('1e1000')))
232 call assert_equal('inf', string(str2float('inf')))
233 call assert_equal('-inf', string(str2float('-inf')))
Bram Moolenaar87200412017-01-10 16:31:20 +0100234 call assert_equal('inf', string(str2float('+inf')))
Bram Moolenaar62473612017-01-08 19:25:40 +0100235 call assert_equal('inf', string(str2float('Inf')))
Bram Moolenaar87200412017-01-10 16:31:20 +0100236 call assert_equal('inf', string(str2float(' +inf ')))
Bram Moolenaar62473612017-01-08 19:25:40 +0100237 call assert_equal('nan', string(str2float('nan')))
238 call assert_equal('nan', string(str2float('NaN')))
Bram Moolenaar87200412017-01-10 16:31:20 +0100239 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:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100245endfunc
246
Bram Moolenaar863e80b2017-06-04 20:30:00 +0200247func 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))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200251 eval 123.4e-1->float2nr()->assert_equal(12)
Bram Moolenaar863e80b2017-06-04 20:30:00 +0200252 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
Bram Moolenaar453b5762017-01-08 17:59:14 +0100262func Test_floor()
Bram Moolenaar62473612017-01-08 19:25:40 +0100263 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200266 eval 2.99->floor()->string()->assert_equal('2.0')
Bram Moolenaar62473612017-01-08 19:25:40 +0100267 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +0100272 call assert_fails("call floor('')", 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100273endfunc
274
275func Test_ceil()
Bram Moolenaar62473612017-01-08 19:25:40 +0100276 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200280 eval -2.11->ceil()->string()->assert_equal('-2.0')
Bram Moolenaar62473612017-01-08 19:25:40 +0100281 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +0100285 call assert_fails("call ceil('')", 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100286endfunc
287
288func Test_round()
Bram Moolenaar62473612017-01-08 19:25:40 +0100289 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200292 eval 2.9->round()->string()->assert_equal('3.0')
Bram Moolenaar62473612017-01-08 19:25:40 +0100293 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +0100299 call assert_fails("call round('')", 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100300endfunc
301
302func Test_trunc()
Bram Moolenaar62473612017-01-08 19:25:40 +0100303 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)))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200306 eval 2.9->trunc()->string()->assert_equal('2.0')
Bram Moolenaar62473612017-01-08 19:25:40 +0100307 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)))
Bram Moolenaar87200412017-01-10 16:31:20 +0100313 call assert_fails("call trunc('')", 'E808:')
Bram Moolenaar453b5762017-01-08 17:59:14 +0100314endfunc
315
Bram Moolenaarfda1bff2019-04-04 13:44:37 +0200316func Test_isinf()
317 call assert_equal(1, isinf(1.0/0.0))
318 call assert_equal(-1, isinf(-1.0/0.0))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200319 eval (-1.0/0.0)->isinf()->assert_equal(-1)
Bram Moolenaarfda1bff2019-04-04 13:44:37 +0200320 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
Bram Moolenaar453b5762017-01-08 17:59:14 +0100327func Test_isnan()
Bram Moolenaarfda1bff2019-04-04 13:44:37 +0200328 call assert_true(isnan(0.0/0.0))
329 call assert_false(isnan(1.0))
330 call assert_false(isnan(1.0/0.0))
Bram Moolenaar93cf85f2019-08-17 21:36:28 +0200331 eval (1.0/0.0)->isnan()->assert_false()
Bram Moolenaarfda1bff2019-04-04 13:44:37 +0200332 call assert_false(isnan(-1.0/0.0))
333 call assert_false(isnan('a'))
334 call assert_false(isnan([]))
335 call assert_false(isnan({}))
Bram Moolenaar453b5762017-01-08 17:59:14 +0100336endfunc
Bram Moolenaar863e80b2017-06-04 20:30:00 +0200337
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