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|
{ depot, lib, ... }:
let
inherit (depot.nix.runTestsuite)
runTestsuite
it
assertEq
;
inherit (depot.users.sterni.nix)
float
;
testsBuiltins = it "tests builtin operations" [
(assertEq "ceil pos" (float.ceil 1.5) 2)
(assertEq "ceil neg" (float.ceil (-1.5)) (-1))
(assertEq "floor pos" (float.floor 1.5) 1)
(assertEq "floor neg" (float.floor (-1.5)) (-2))
];
testsConversionFrom = it "tests integer to float conversion" [
(assertEq "float.intToFloat is identity for floats" (float.intToFloat 1.3) 1.3)
(assertEq "float.intToFloat converts ints"
(builtins.all
(val: builtins.isFloat val)
(builtins.map float.intToFloat (builtins.genList (i: i - 500) 1000)))
true)
];
exampleFloats = [ 0.5 0.45 0.3 0.1 200 203.457847 204.65547 (-1.5) (-2) (-1.3) (-0.45) ];
testsConversionTo = it "tests float to integer conversion" [
(assertEq "round"
(builtins.map float.round exampleFloats)
[ 1 0 0 0 200 203 205 (-2) (-2) (-1) 0 ])
(assertEq "truncate towards zero"
(builtins.map float.truncate exampleFloats)
[ 0 0 0 0 200 203 204 (-1) (-2) (-1) 0 ])
];
in
runTestsuite "nix.num" ([
testsConversionFrom
]
# Skip for e.g. C++ Nix < 2.4
++ lib.optionals (builtins ? ceil && builtins ? floor) [
testsConversionTo
testsBuiltins
])
|
