1 files changed, 53 insertions, 0 deletions
diff --git a/users/sterni/nix/string/tests/default.nix b/users/sterni/nix/string/tests/default.nix
new file mode 100644
index 000000000000..576952673471
--- /dev/null
+++ b/users/sterni/nix/string/tests/default.nix
@@ -0,0 +1,53 @@
+{ 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)
+  ];
+
+in
+  runTestsuite "nix.string" [
+    testTakeDrop
+    testIndexing
+    testFinding
+  ]