Test.sh fallback

CHANGELOG.md

@@ -59,6 +59,9 @@
 
 - Project is switch to use Go modules.
 
+- Now test.sh is used by default if copying is not implemented in
+  Makefile.
+
 ### Removed
 
 - *Kernel factory* is removed completely in favor of incremental

pew.go

@@ -365,6 +365,9 @@ func whatever(swg *sizedwaitgroup.SizedWaitGroup, ka config.Artifact,
 
 	if testPath == "" {
 		testPath = result.BuildArtifact + "_test"
+		if !exists(testPath) {
+			testPath = tmp + "/" + "test.sh"
+		}
 	}
 
 	remoteTest, err := copyTest(q, testPath, ka)