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# Run:
# [nixpkgs]$ nix-instantiate --eval --strict lib/tests/systems.nix
# Expected output: [], or the failed cases
#
# OfBorg runs (approximately) nix-build lib/tests/release.nix
let
lib = import ../default.nix;
mseteq = x: y: {
expr = lib.sort lib.lessThan x;
expected = lib.sort lib.lessThan y;
};
/*
Try to convert an elaborated system back to a simple string. If not possible,
return null. So we have the property:
sys: _valid_ sys ->
sys == elaborate (toLosslessStringMaybe sys)
NOTE: This property is not guaranteed when `sys` was elaborated by a different
version of Nixpkgs.
*/
toLosslessStringMaybe = sys:
if lib.isString sys then sys
else if lib.systems.equals sys (lib.systems.elaborate sys.system) then sys.system
else null;
in
lib.runTests (
# We assert that the new algorithmic way of generating these lists matches the
# way they were hard-coded before.
#
# One might think "if we exhaustively test, what's the point of procedurally
# calculating the lists anyway?". The answer is one can mindlessly update these
# tests as new platforms become supported, and then just give the diff a quick
# sanity check before committing :).
(with lib.systems.doubles; {
testall = mseteq all (linux ++ darwin ++ freebsd ++ openbsd ++ netbsd ++ illumos ++ wasi ++ windows ++ embedded ++ mmix ++ js ++ genode ++ redox);
testarm = mseteq arm [ "armv5tel-linux" "armv6l-linux" "armv6l-netbsd" "armv6l-none" "armv7a-linux" "armv7a-netbsd" "armv7l-linux" "armv7l-netbsd" "arm-none" "armv7a-darwin" ];
testarmv7 = mseteq armv7 [ "armv7a-darwin" "armv7a-linux" "armv7l-linux" "armv7a-netbsd" "armv7l-netbsd" ];
testi686 = mseteq i686 [ "i686-linux" "i686-freebsd13" "i686-genode" "i686-netbsd" "i686-openbsd" "i686-cygwin" "i686-windows" "i686-none" "i686-darwin" ];
testmips = mseteq mips [ "mips-none" "mips64-none" "mips-linux" "mips64-linux" "mips64el-linux" "mipsel-linux" "mipsel-netbsd" ];
testmmix = mseteq mmix [ "mmix-mmixware" ];
testpower = mseteq power [ "powerpc-netbsd" "powerpc-none" "powerpc64-linux" "powerpc64le-linux" "powerpcle-none" ];
testriscv = mseteq riscv [ "riscv32-linux" "riscv64-linux" "riscv32-netbsd" "riscv64-netbsd" "riscv32-none" "riscv64-none" ];
testriscv32 = mseteq riscv32 [ "riscv32-linux" "riscv32-netbsd" "riscv32-none" ];
testriscv64 = mseteq riscv64 [ "riscv64-linux" "riscv64-netbsd" "riscv64-none" ];
tests390x = mseteq s390x [ "s390x-linux" "s390x-none" ];
testx86_64 = mseteq x86_64 [ "x86_64-linux" "x86_64-darwin" "x86_64-freebsd13" "x86_64-genode" "x86_64-redox" "x86_64-openbsd" "x86_64-netbsd" "x86_64-cygwin" "x86_64-solaris" "x86_64-windows" "x86_64-none" ];
testcygwin = mseteq cygwin [ "i686-cygwin" "x86_64-cygwin" ];
testdarwin = mseteq darwin [ "x86_64-darwin" "i686-darwin" "aarch64-darwin" "armv7a-darwin" ];
testfreebsd = mseteq freebsd [ "i686-freebsd13" "x86_64-freebsd13" ];
testgenode = mseteq genode [ "aarch64-genode" "i686-genode" "x86_64-genode" ];
testredox = mseteq redox [ "x86_64-redox" ];
testgnu = mseteq gnu (linux /* ++ kfreebsd ++ ... */);
testillumos = mseteq illumos [ "x86_64-solaris" ];
testlinux = mseteq linux [ "aarch64-linux" "armv5tel-linux" "armv6l-linux" "armv7a-linux" "armv7l-linux" "i686-linux" "loongarch64-linux" "m68k-linux" "microblaze-linux" "microblazeel-linux" "mips-linux" "mips64-linux" "mips64el-linux" "mipsel-linux" "powerpc64-linux" "powerpc64le-linux" "riscv32-linux" "riscv64-linux" "s390-linux" "s390x-linux" "x86_64-linux" ];
testnetbsd = mseteq netbsd [ "aarch64-netbsd" "armv6l-netbsd" "armv7a-netbsd" "armv7l-netbsd" "i686-netbsd" "m68k-netbsd" "mipsel-netbsd" "powerpc-netbsd" "riscv32-netbsd" "riscv64-netbsd" "x86_64-netbsd" ];
testopenbsd = mseteq openbsd [ "i686-openbsd" "x86_64-openbsd" ];
testwindows = mseteq windows [ "i686-cygwin" "x86_64-cygwin" "i686-windows" "x86_64-windows" ];
testunix = mseteq unix (linux ++ darwin ++ freebsd ++ openbsd ++ netbsd ++ illumos ++ cygwin ++ redox);
})
// {
test_equals_example_x86_64-linux = {
expr = lib.systems.equals (lib.systems.elaborate "x86_64-linux") (lib.systems.elaborate "x86_64-linux");
expected = true;
};
test_toLosslessStringMaybe_example_x86_64-linux = {
expr = toLosslessStringMaybe (lib.systems.elaborate "x86_64-linux");
expected = "x86_64-linux";
};
test_toLosslessStringMaybe_fail = {
expr = toLosslessStringMaybe (lib.systems.elaborate "x86_64-linux" // { something = "extra"; });
expected = null;
};
}
# Generate test cases to assert that a change in any non-function attribute makes a platform unequal
// lib.concatMapAttrs (platformAttrName: origValue: {
${"test_equals_unequal_${platformAttrName}"} =
let modified =
assert origValue != arbitraryValue;
lib.systems.elaborate "x86_64-linux" // { ${platformAttrName} = arbitraryValue; };
arbitraryValue = x: "<<modified>>";
in {
expr = lib.systems.equals (lib.systems.elaborate "x86_64-linux") modified;
expected = {
# Changes in these attrs are not detectable because they're function.
# The functions should be derived from the data, so this is not a problem.
canExecute = null;
emulator = null;
emulatorAvailable = null;
isCompatible = null;
}?${platformAttrName};
};
}) (lib.systems.elaborate "x86_64-linux" /* arbitrary choice, just to get all the elaborated attrNames */)
)
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