From a7388a291d88d1a3f76f476a6e3af30521d99cc2 Mon Sep 17 00:00:00 2001
From: Rasmus Moorats <xx@nns.ee>
Date: Tue, 11 Jan 2022 12:51:54 +0200
Subject: [PATCH] assert that generated images match P6 master

---
 tests/test_ppm.nim | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tests/test_ppm.nim b/tests/test_ppm.nim
index d84ec9a..d041c12 100644
--- a/tests/test_ppm.nim
+++ b/tests/test_ppm.nim
@@ -11,3 +11,8 @@ block:
     "tests/fileformats/ppm/feep.p3.hidepth.master.ppm"
   ))
   writeFile("tests/fileformats/ppm/feep.p3.hidepth.ppm", encodePpm(image))
+
+  # produced output should be identical to P6 master
+  let p6Master = readFile("tests/fileformats/ppm/feep.p6.master.ppm")
+  for image in @["p3", "p6", "p3.hidepth"]:
+    doAssert readFile("tests/fileformats/ppm/feep." & $image & ".ppm") == p6Master