Added test for missing source file

tests/test_build.py

+import re
+
 import pytest
 
 from .utils import TEST_MODULE_NAME, run_make
@@ -5,6 +7,8 @@ from .utils import TEST_MODULE_NAME, run_make
 MODULE_VERSION = "0.0.0+0"
 MODULE_VERSION_NO_BUILD = "0.0.0"
 
+RE_MISSING_FILE = "No rule to make target [`']{filename}'"
+
 DB_FILE = """record(ai, "TEST") {
 
 }
@@ -75,10 +79,26 @@ def test_patch(wrapper):
     [{"templates": "", "sources": "", "dbds": "nonexistent.dbd", "headers": ""}],
     indirect=True,
 )
-def test_missing_file(wrapper):
+def test_missing_dbd_file(wrapper):
     rc, _, errs = run_make(wrapper, "build")
 
-    # TODO: This should probably be a regex, since the quote marks seem to
-    #       depend on the make version.
-    assert "No rule to make target `../nonexistent.dbd'" in errs.decode("utf-8")
     assert rc == 2
+    assert re.search(
+        RE_MISSING_FILE.format(filename=re.escape("../nonexistent.dbd")),
+        errs.decode("utf-8"),
+    )
+
+
+@pytest.mark.parametrize(
+    "wrapper",
+    [{"templates": "", "sources": "nonexistent.c", "dbds": "", "headers": ""}],
+    indirect=True,
+)
+def test_missing_source_file(wrapper):
+    rc, _, errs = run_make(wrapper, "build")
+
+    assert rc == 2
+    assert re.search(
+        RE_MISSING_FILE.format(filename=re.escape("nonexistent.o")),
+        errs.decode("utf-8"),
+    )