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authorsterni <sternenseemann@systemli.org>2021-09-11T19·56+0200
committersterni <sternenseemann@systemli.org>2021-09-12T09·25+0000
commite507b842918f80340257304bd9541cb3b3abc9da (patch)
tree62537407066e338491b489be3c54a40f21d77f27 /users/sterni/nix/string/tests/default.nix
parent2f750e4a14be68f275f6fe23995eb9a994e0f5de (diff)
feat(users/sterni/nix/string): very simple printf implementation r/2851
This is mostly to yet another silly idea which turns out to be
possible. This may be actually useful should I implement more
sophisticated format specifiers like "%xd" or "%f".

Change-Id: Ia56cd6f5793a09fe5e19c91a8e8f9098f3244d57
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3537
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Diffstat (limited to 'users/sterni/nix/string/tests/default.nix')
-rw-r--r--users/sterni/nix/string/tests/default.nix7
1 files changed, 7 insertions, 0 deletions
diff --git a/users/sterni/nix/string/tests/default.nix b/users/sterni/nix/string/tests/default.nix
index 2caecbfa7b3f..c8aec9464077 100644
--- a/users/sterni/nix/string/tests/default.nix
+++ b/users/sterni/nix/string/tests/default.nix
@@ -56,10 +56,17 @@ let
       }))
   ];
 
+  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
   ]