run tests on each CD build

.github/workflows/build.yaml

@@ -31,6 +31,7 @@ jobs:
     steps:
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
       - uses: cachix/install-nix-action@ba01fffc512be2cf5d4dce85159f0e40621f84ec
+      - run: nix run .#tests -- ./tests/workspace
       - run: |
           nix build
           cp ./result/bin/knock knock.${{ matrix.target.kernel }}.${{ matrix.target.arch }}

tests/tests.py

@@ -9,22 +9,22 @@
 
 if not knock.exists():
     print("error: " + str(knock) + " does not exist", file=sys.stderr)
-    sys.exit()
+    sys.exit(1)
 
 if len(sys.argv) != 2:
     print(
         "error: missing required argument: directory in which to perform the tests",
         file=sys.stderr,
     )
-    sys.exit()
+    sys.exit(1)
 workspace = Path(sys.argv[1])
 
 print("Testing " + str(knock))
 
 result = subprocess.run(knock)
 if result.returncode != 0:
     print("Test failed: knock failed to describe itself")
-    sys.exit()
+    sys.exit(1)
 print("---")
 
 html = requests.get(
@@ -63,7 +63,7 @@
 
         if result.returncode != 0:
             print("Test failed: knock failed to convert a file")
-            sys.exit()
+            sys.exit(1)
 
         print("Success\n---")