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https://github.com/fish-shell/fish-shell.git
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b2e6609367
This now allows: - Same argument (`random 5 5`) - Swapped ends (`random 10 2`) - One possibility (`random 0 5 4`) This makes it easier to use with numbers generated elsewhere instead of hard-coded, so you don't need to check as much before running it. Fixes #10879
112 lines
3.0 KiB
Fish
112 lines
3.0 KiB
Fish
#RUN: %fish %s
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set -l max 9223372036854775807
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set -l close_max 9223372036854775806
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set -l min -9223372036854775807
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set -l close_min -9223372036854775806
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set -l diff_max 18446744073709551614
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# check failure cases
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random a
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#CHECKERR: random: a: invalid integer
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random $diff_max
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#CHECKERR: random: 18446744073709551614: invalid integer
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random -- 1 2 3 4
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#CHECKERR: random: too many arguments
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random -- 10 $diff_max
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#CHECKERR: random: 18446744073709551614: invalid integer
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random -- 1 1d
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random -- 1 1c 10
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#CHECKERR: random: 1d: invalid integer
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#CHECKERR: random: 1c: invalid integer
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random -- 1 - 10
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#CHECKERR: random: -: invalid integer
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random -- 1 -1 10
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#CHECKERR: random: -1: invalid integer
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random -- 1 $min 10
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#CHECKERR: random: -9223372036854775807: invalid integer
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random -- 1 0 10
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#CHECKERR: random: STEP must be a positive integer
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random choice
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#CHECKERR: random: nothing to choose from
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random choic a b c
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#CHECKERR: random: too many arguments
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function check_boundaries
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if not test "$argv[1]" -ge "$argv[2]" -a "$argv[1]" -le "$argv[3]"
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printf "Unexpected: %s <= %s <= %s not verified\n" $argv[2] $argv[1] $argv[3] >&2
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status print-stack-trace
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return 1
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end
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end
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function test_range
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return (check_boundaries (random -- $argv) $argv)
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end
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function check_contains
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if not contains -- $argv[1] $argv[2..-1]
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printf "Unexpected: %s not among possibilities" $argv[1] >&2
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printf " %s" $argv[2..-1] >&2
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printf "\n" >&2
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status print-stack-trace
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return 1
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end
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end
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function test_step
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return (check_contains (random -- $argv) (seq -- $argv))
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end
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function test_choice
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return (check_contains (random choice $argv) $argv)
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end
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for i in (seq 10)
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check_boundaries (random) 0 32767
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test_range 0 10
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test_range -10 -1
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test_range -10 10
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test_range 5 5
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test_range 0 $max
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test_range $min -1
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test_range $min $max
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test_range $close_max $max
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test_range $min $close_min
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test_range $close_min $close_max
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#OSX's `seq` uses scientific notation for large numbers, hence not usable here
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check_contains (random -- 0 $max $max) 0 $max
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check_contains (random -- 0 $close_max $max) 0 $close_max
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check_contains (random -- $min $max 0) $min 0
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check_contains (random -- $min $close_max 0) $min -1
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check_contains (random -- $min $max $max) $min 0 $max
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check_contains (random -- $min $diff_max $max) $min $max
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check_contains (random -- 5 0) 0 1 2 3 4 5
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test_step 0 $i 10
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test_step -5 $i 5
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test_step -10 $i 0
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test_choice a
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test_choice foo bar
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test_choice bass trout salmon zander perch carp
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end
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#check seeding
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set -l seed (random)
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random $seed
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set -l run1 (random) (random) (random) (random) (random)
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random $seed
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set -l run2 (random) (random) (random) (random) (random)
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if not test "$run1" = "$run2"
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printf "Unexpected different sequences after seeding with %s\n" $seed
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printf "%s " $run1
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printf "\n"
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printf "%s " $run2
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printf "\n"
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end
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