basis/math/floats/env/env-tests.factor

   1 USING: kernel math math.floats.env math.floats.env.private
   2 math.functions math.libm sequences tools.test locals
   3 compiler.units kernel.private fry compiler.test math.private
   4 words system memory ;
   5 IN: math.floats.env.tests
   6
   7 : set-default-fp-env ( -- )
   8     { } { } +round-nearest+ +denormal-keep+ set-fp-env ;
   9
  10 ! In case the tests screw up the FP env because of bugs in math.floats.env
  11 set-default-fp-env
  12
  13 : test-fp-exception ( exception inputs quot -- quot' )
  14     '[ _ [ @ @ ] collect-fp-exceptions nip member? ] ;
  15
  16 : test-fp-exception-compiled ( exception inputs quot -- quot' )
  17     '[ _ @ [ _ collect-fp-exceptions ] compile-call nip member? ] ;
  18
  19 [ t ] +fp-zero-divide+ [ 1.0 0.0 ] [ /f ] test-fp-exception unit-test
  20 [ t ] +fp-inexact+ [ 1.0 3.0 ] [ /f ] test-fp-exception unit-test
  21 [ t ] +fp-overflow+ [ 1.0e250 1.0e100 ] [ * ] test-fp-exception unit-test
  22 [ t ] +fp-underflow+ [ 1.0e-250 1.0e-100 ] [ * ] test-fp-exception unit-test
  23 [ t ] +fp-overflow+ [ 2.0 100,000.0 ] [ fpow ] test-fp-exception unit-test
  24 [ t ] +fp-invalid-operation+ [ 0.0 0.0 ] [ /f ] test-fp-exception unit-test
  25 [ t ] +fp-invalid-operation+ [ -1.0 ] [ fsqrt ] test-fp-exception unit-test
  26
  27 [ t ] +fp-zero-divide+ [ 1.0 0.0 ] [ /f ] test-fp-exception-compiled unit-test
  28 [ t ] +fp-inexact+ [ 1.0 3.0 ] [ /f ] test-fp-exception-compiled unit-test
  29 [ t ] +fp-overflow+ [ 1.0e250 1.0e100 ] [ * ] test-fp-exception-compiled unit-test
  30 [ t ] +fp-underflow+ [ 1.0e-250 1.0e-100 ] [ * ] test-fp-exception-compiled unit-test
  31 [ t ] +fp-overflow+ [ 2.0 100,000.0 ] [ fpow ] test-fp-exception-compiled unit-test
  32 [ t ] +fp-invalid-operation+ [ 2.0 0/0. 1.0e-9 ] [ ~ ] test-fp-exception-compiled unit-test
  33
  34 ! No underflow on Linux with this test, just inexact. Reported as an Ubuntu bug:
  35 ! https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/429113
  36 os linux? cpu x86.64? and [
  37     [ t ] +fp-underflow+ [ 2.0 -100,000.0 ] [ fpow ] test-fp-exception unit-test
  38     [ t ] +fp-underflow+ [ 2.0 -100,000.0 ] [ fpow ] test-fp-exception-compiled unit-test
  39 ] unless
  40
  41 [ t ] +fp-invalid-operation+ [ 0.0 0.0 ] [ /f ] test-fp-exception-compiled unit-test
  42 [ t ] +fp-invalid-operation+ [ -1.0 ] [ fsqrt ] test-fp-exception-compiled unit-test
  43
  44 [
  45     0x3fd5,5555,5555,5555
  46     0x3fc9,9999,9999,999a
  47     0xbfc9,9999,9999,999a
  48     0xbfd5,5555,5555,5555
  49 ] [
  50     +round-nearest+ [
  51          1.0 3.0 /f double>bits
  52          1.0 5.0 /f double>bits
  53         -1.0 5.0 /f double>bits
  54         -1.0 3.0 /f double>bits
  55     ] with-rounding-mode
  56 ] unit-test
  57
  58 [
  59     0x3fd5,5555,5555,5555
  60     0x3fc9,9999,9999,9999
  61     0xbfc9,9999,9999,999a
  62     0xbfd5,5555,5555,5556
  63 ] [
  64     +round-down+ [
  65          1.0 3.0 /f double>bits
  66          1.0 5.0 /f double>bits
  67         -1.0 5.0 /f double>bits
  68         -1.0 3.0 /f double>bits
  69     ] with-rounding-mode
  70 ] unit-test
  71
  72 [
  73     0x3fd5,5555,5555,5556
  74     0x3fc9,9999,9999,999a
  75     0xbfc9,9999,9999,9999
  76     0xbfd5,5555,5555,5555
  77 ] [
  78     +round-up+ [
  79          1.0 3.0 /f double>bits
  80          1.0 5.0 /f double>bits
  81         -1.0 5.0 /f double>bits
  82         -1.0 3.0 /f double>bits
  83     ] with-rounding-mode
  84 ] unit-test
  85
  86 [
  87     0x3fd5,5555,5555,5555
  88     0x3fc9,9999,9999,9999
  89     0xbfc9,9999,9999,9999
  90     0xbfd5,5555,5555,5555
  91 ] [
  92     +round-zero+ [
  93          1.0 3.0 /f double>bits
  94          1.0 5.0 /f double>bits
  95         -1.0 5.0 /f double>bits
  96         -1.0 3.0 /f double>bits
  97     ] with-rounding-mode
  98 ] unit-test
  99
 100 ! ensure rounding mode is restored to +round-nearest+
 101 [
 102     0x3fd5,5555,5555,5555
 103     0x3fc9,9999,9999,999a
 104     0xbfc9,9999,9999,999a
 105     0xbfd5,5555,5555,5555
 106 ] [
 107      1.0 3.0 /f double>bits
 108      1.0 5.0 /f double>bits
 109     -1.0 5.0 /f double>bits
 110     -1.0 3.0 /f double>bits
 111 ] unit-test
 112
 113 : fp-trap-error? ( error -- ? )
 114     2 head { "kernel-error" 17 } = ;
 115
 116 : test-traps ( traps inputs quot -- quot' fail-quot )
 117     append '[ _ _ with-fp-traps ] [ fp-trap-error? ] ;
 118
 119 : test-traps-compiled ( traps inputs quot -- quot' fail-quot )
 120     swapd '[ @ [ _ _ with-fp-traps ] compile-call ] [ fp-trap-error? ] ;
 121
 122 { +fp-zero-divide+ } [ 1.0 0.0 ] [ /f ] test-traps must-fail-with
 123 { +fp-inexact+ } [ 1.0 3.0 ] [ /f ] test-traps must-fail-with
 124 { +fp-invalid-operation+ } [ -1.0 ] [ fsqrt ] test-traps must-fail-with
 125 { +fp-overflow+ } [ 2.0 ] [ 100,000.0 ^ ] test-traps must-fail-with
 126 { +fp-underflow+ +fp-inexact+ } [ 2.0 ] [ -100,000.0 ^ ] test-traps must-fail-with
 127
 128 { +fp-zero-divide+ } [ 1.0 0.0 ] [ /f ] test-traps-compiled must-fail-with
 129 { +fp-inexact+ } [ 1.0 3.0 ] [ /f ] test-traps-compiled must-fail-with
 130 { +fp-invalid-operation+ } [ -1.0 ] [ fsqrt ] test-traps-compiled must-fail-with
 131 { +fp-overflow+ } [ 2.0 ] [ 100,000.0 ^ ] test-traps-compiled must-fail-with
 132 { +fp-underflow+ +fp-inexact+ } [ 2.0 ] [ -100,000.0 ^ ] test-traps-compiled must-fail-with
 133
 134 ! Ensure ordered comparisons raise traps
 135 :: test-comparison-quot ( word -- quot )
 136     [
 137         { float float } declare
 138         { +fp-invalid-operation+ } [ word execute ] with-fp-traps
 139     ] ;
 140
 141 : test-comparison ( inputs word -- quot fail-quot )
 142     test-comparison-quot append [ fp-trap-error? ] ;
 143
 144 : test-comparison-compiled ( inputs word -- quot fail-quot )
 145     test-comparison-quot '[ @ _ compile-call ] [ fp-trap-error? ] ;
 146
 147 \ float< "intrinsic" word-prop [
 148     [ 0/0. -15.0 ] \ < test-comparison must-fail-with
 149     [ 0/0. -15.0 ] \ < test-comparison-compiled must-fail-with
 150     [ -15.0 0/0. ] \ < test-comparison must-fail-with
 151     [ -15.0 0/0. ] \ < test-comparison-compiled must-fail-with
 152     [ 0/0. -15.0 ] \ <= test-comparison must-fail-with
 153     [ 0/0. -15.0 ] \ <= test-comparison-compiled must-fail-with
 154     [ -15.0 0/0. ] \ <= test-comparison must-fail-with
 155     [ -15.0 0/0. ] \ <= test-comparison-compiled must-fail-with
 156     [ 0/0. -15.0 ] \ > test-comparison must-fail-with
 157     [ 0/0. -15.0 ] \ > test-comparison-compiled must-fail-with
 158     [ -15.0 0/0. ] \ > test-comparison must-fail-with
 159     [ -15.0 0/0. ] \ > test-comparison-compiled must-fail-with
 160     [ 0/0. -15.0 ] \ >= test-comparison must-fail-with
 161     [ 0/0. -15.0 ] \ >= test-comparison-compiled must-fail-with
 162     [ -15.0 0/0. ] \ >= test-comparison must-fail-with
 163     [ -15.0 0/0. ] \ >= test-comparison-compiled must-fail-with
 164
 165     [ f ] [ 0/0. -15.0 ] \ u< test-comparison drop unit-test
 166     [ f ] [ 0/0. -15.0 ] \ u< test-comparison-compiled drop unit-test
 167     [ f ] [ -15.0 0/0. ] \ u< test-comparison drop unit-test
 168     [ f ] [ -15.0 0/0. ] \ u< test-comparison-compiled drop unit-test
 169     [ f ] [ 0/0. -15.0 ] \ u<= test-comparison drop unit-test
 170     [ f ] [ 0/0. -15.0 ] \ u<= test-comparison-compiled drop unit-test
 171     [ f ] [ -15.0 0/0. ] \ u<= test-comparison drop unit-test
 172     [ f ] [ -15.0 0/0. ] \ u<= test-comparison-compiled drop unit-test
 173     [ f ] [ 0/0. -15.0 ] \ u> test-comparison drop unit-test
 174     [ f ] [ 0/0. -15.0 ] \ u> test-comparison-compiled drop unit-test
 175     [ f ] [ -15.0 0/0. ] \ u> test-comparison drop unit-test
 176     [ f ] [ -15.0 0/0. ] \ u> test-comparison-compiled drop unit-test
 177     [ f ] [ 0/0. -15.0 ] \ u>= test-comparison drop unit-test
 178     [ f ] [ 0/0. -15.0 ] \ u>= test-comparison-compiled drop unit-test
 179     [ f ] [ -15.0 0/0. ] \ u>= test-comparison drop unit-test
 180     [ f ] [ -15.0 0/0. ] \ u>= test-comparison-compiled drop unit-test
 181 ] when
 182
 183 ! Ensure traps get cleared
 184 [ 1/0. ] [ 1.0 0.0 /f ] unit-test
 185
 186 ! Ensure state is back to normal
 187 [ +round-nearest+ ] [ rounding-mode ] unit-test
 188 [ +denormal-keep+ ] [ denormal-mode ] unit-test
 189 [ { } ] [ fp-traps ] unit-test
 190
 191 [ ] [
 192     all-fp-exceptions [ compact-gc ] with-fp-traps
 193 ] unit-test
 194
 195 ! In case the tests screw up the FP env because of bugs in math.floats.env
 196 set-default-fp-env