pretty printing

tix/describe.nix

@@ -1,5 +1,5 @@
 name:
-builtins.trace "testing ${name}"
+builtins.trace "tix: ├── ${name}"
 map ({
     msg,
     success,

tix/emotes.nix

@@ -0,0 +1,4 @@
+{
+  pass = "✔️";
+  fail = "❌";
+}

tix/filters.nix

@@ -1,9 +1,11 @@
-{
+let
+  emotes = import ./emotes.nix;
+in {
   overview = ''
     .[] | {
       (.path): {
-      "❌": [.results | map(select(.success==false))[] | {(.msg): {actual, expected}}],
-      "✔️": .results | map(select(.success) | .msg) | length
+      "${emotes.fail}": [.results | map(select(.success==false))[] | {(.msg): {actual, expected}}],
+      "${emotes.pass}": .results | map(select(.success) | .msg) | length
       }
     }
   '';

tix/it.nix

@@ -7,6 +7,8 @@ msg: {
   safeToPrint ? true,
   throws ? false,
 }: let
+  emotes = import ./emotes.nix;
+
   preProcess = v:
     if removeDunders
     then undunder v
@@ -24,19 +26,19 @@ msg: {
     then builtins.removeAttrs v ["__toString" "__functor"]
     else v;
 
-  success =
-    builtins.trace "testing if it ${msg}"
-    (
-      if throws
-      then (builtins.tryEval actual).success == false
-      else (a == e)
-    );
+  success = (
+    if throws
+    then (builtins.tryEval actual).success == false
+    else (a == e)
+  );
 in
   {
     inherit success msg;
   }
   // (
     if success
-    then {}
-    else builtins.trace "FAILED ${msg}" {inherit actual expected;}
+    then builtins.trace "tix: │   ├── ${emotes.pass} ${msg}" {}
+    else
+      builtins.trace "tix: │   ├── ${emotes.fail} ${msg}"
+      {inherit actual expected;}
   )

tix/test.nix

@@ -3,7 +3,7 @@ path: let
   describe = import ./describe.nix;
   suite = import path;
 in
-  builtins.trace ("testing " + builtins.baseNameOf path)
+  builtins.trace ("tix: " + builtins.baseNameOf path)
   (
     if !builtins.isFunction suite
     then throw "A test suite should be in the form { it }: [ <tests> ]."