tvl-depot/users/sterni/nix/string/tests/default.nix

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{ depot, ... }:
let
inherit (depot.users.sterni.nix)
string
;
inherit (depot.nix.runTestsuite)
it
assertEq
runTestsuite
;
testTakeDrop = it "tests take and drop" [
(assertEq "take"
(string.take 5 "five and more")
"five ")
(assertEq "drop"
(string.drop 2 "coin")
"in")
(assertEq "take out of bounds"
(string.take 100 "foo")
"foo")
(assertEq "drop out of bounds"
(string.drop 42 "lol")
"")
];
testIndexing = it "tests string indexing" [
(assertEq "normal charAt"
(string.charAt 3 "helo")
"o")
(assertEq "out of bounds charAt"
(string.charAt 5 "helo")
null)
];
testFinding = it "tests finding in strings" [
(assertEq "normal charIndex"
(string.charIndex "d" "abcdefghijkl")
3)
(assertEq "charIndex no match"
(string.charIndex "w" "zZzZzzzZZZ")
null)
];
dontEval = builtins.throw "this should not get evaluated";
testMatch = it "tests match" [
(assertEq "basic match usage" 42
(string.match "answer" {
"answer" = 42;
"banana" = dontEval;
"maleur" = dontEval;
}))
];
f = "f";
testPrintf = it "prints f" [
(assertEq "basic %s usage" "print ${f}" (string.printf "print %s" f))
(assertEq "% escaping" "100%" (string.printf "100%%"))
];
in
runTestsuite "nix.string" [
testTakeDrop
testIndexing
testFinding
testMatch
testPrintf
]