diff options
Diffstat (limited to 'lib/tests.nix')
-rw-r--r-- | lib/tests.nix | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/lib/tests.nix b/lib/tests.nix new file mode 100644 index 000000000000..298bdffc3790 --- /dev/null +++ b/lib/tests.nix @@ -0,0 +1,113 @@ +let inherit (builtins) add; in +with import ./default.nix; + +runTests { + + testId = { + expr = id 1; + expected = 1; + }; + + testConst = { + expr = const 2 3; + expected = 2; + }; + + /* + testOr = { + expr = or true false; + expected = true; + }; + */ + + testAnd = { + expr = and true false; + expected = false; + }; + + testFix = { + expr = fix (x: {a = if x ? a then "a" else "b";}); + expected = {a = "a";}; + }; + + testConcatMapStrings = { + expr = concatMapStrings (x: x + ";") ["a" "b" "c"]; + expected = "a;b;c;"; + }; + + testConcatStringsSep = { + expr = concatStringsSep "," ["a" "b" "c"]; + expected = "a,b,c"; + }; + + testFilter = { + expr = filter (x: x != "a") ["a" "b" "c" "a"]; + expected = ["b" "c"]; + }; + + testFold = { + expr = fold (builtins.add) 0 (range 0 100); + expected = 5050; + }; + + testTake = testAllTrue [ + ([] == (take 0 [ 1 2 3 ])) + ([1] == (take 1 [ 1 2 3 ])) + ([ 1 2 ] == (take 2 [ 1 2 3 ])) + ([ 1 2 3 ] == (take 3 [ 1 2 3 ])) + ([ 1 2 3 ] == (take 4 [ 1 2 3 ])) + ]; + + testFoldAttrs = { + expr = foldAttrs (n: a: [n] ++ a) [] [ + { a = 2; b = 7; } + { a = 3; c = 8; } + ]; + expected = { a = [ 2 3 ]; b = [7]; c = [8];}; + }; + + testOverridableDelayableArgsTest = { + 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 + [ ((strip res1) == { }) + ((strip res2) == { a = 7; }) + ((strip res3) == { a = 7; b = 10; }) + ((strip res4) == { a = 7; b = 10; }) + ((strip res5) == { a = 10; }) + ((strip res6) == { a = 17; }) + ((strip resRem7) == {}) + ((strip resFixed1) == { a = 7; b = 10; c =10; name = "name-10"; }) + ]; + expected = true; + }; + + testSort = { + expr = sort builtins.lessThan [ 40 2 30 42 ]; + expected = [2 30 40 42]; + }; + +} |