nixpkgs/pkgs/lib/tests.nix
Eelco Dolstra 1f9740e01c * Added some regression tests for lib that I wrote a while ago but
didn't commit.  Also, run the tests when making a Nixpkgs tarball.

svn path=/nixpkgs/trunk/; revision=14802
2009-03-31 13:03:50 +00:00

103 lines
2.9 KiB
Nix

with import ./default.nix;
runTests {
id = {
expr = id 1;
expected = 1;
};
const = {
expr = const 2 3;
expected = 2;
};
or = {
expr = or true false;
expected = true;
};
and = {
expr = and true false;
expected = false;
};
fix = {
expr = fix (x: {a = if x ? a then "a" else "b";});
expected = {a = "a";};
};
concatMapStrings = {
expr = concatMapStrings (x: x + ";") ["a" "b" "c"];
expected = "a;b;c;";
};
concatStringsSep = {
expr = concatStringsSep "," ["a" "b" "c"];
expected = "a,b,c";
};
filter = {
expr = filter (x: x != "a") ["a" "b" "c" "a"];
expected = ["b" "c"];
};
fold = {
expr = fold (builtins.add) 0 (range 0 100);
expected = 5050;
};
eqStrict = {
expr = all id [
(eqStrict 2 2)
(!eqStrict 3 2)
(eqStrict [2 1] [2 1])
(!eqStrict [1 3] [1 2])
(eqStrict {a = 7; b = 20;} {b= 20; a = 7;})
(eqStrict [{a = 7; b = 20;}] [{b= 20; a = 7;}])
(eqStrict {a = [7 8]; b = 20;} {b= 20; a = [7 8];})
];
expected = true;
};
overridableDelayableArgsTest = {
expr =
let res1 = defaultOverridableDelayableArgs id {};
res2 = defaultOverridableDelayableArgs id { a = 7; };
res3 = let x = defaultOverridableDelayableArgs id { a = 7; };
in (x.merge) { b = 10; };
res4 = let x = defaultOverridableDelayableArgs id { a = 7; };
in (x.merge) ( x: { b = 10; });
res5 = let x = defaultOverridableDelayableArgs id { a = 7; };
in (x.merge) ( x: { a = __add x.a 3; });
res6 = let x = defaultOverridableDelayableArgs id { a = 7; mergeAttrBy = { a = __add; }; };
y = x.merge {};
in (y.merge) { a = 10; };
resRem7 = res6.replace (a : removeAttrs a ["a"]);
resReplace6 = let x = defaultOverridableDelayableArgs id { a = 7; mergeAttrBy = { a = __add; }; };
x2 = x.merge { a = 20; }; # now we have 27
in (x2.replace) { a = 10; }; # and override the value by 10
# fixed tests (delayed args): (when using them add some comments, please)
resFixed1 =
let x = defaultOverridableDelayableArgs id ( x : { a = 7; c = x.fixed.b; });
y = x.merge (x : { name = "name-${builtins.toString x.fixed.c}"; });
in (y.merge) { b = 10; };
strip = attrs : removeAttrs attrs ["merge" "replace"];
in all id
[ (eqStrict (strip res1) { })
(eqStrict (strip res2) { a = 7; })
(eqStrict (strip res3) { a = 7; b = 10; })
(eqStrict (strip res4) { a = 7; b = 10; })
(eqStrict (strip res5) { a = 10; })
(eqStrict (strip res6) { a = 17; })
(eqStrict (strip resRem7) {})
(eqStrict (strip resFixed1) { a = 7; b = 10; c =10; name = "name-10"; })
];
expected = true;
};
}