Fix integration tests for #776

integration/dockerfiles/Dockerfile_dockerignore_relative

@@ -1,5 +1,7 @@
+# This is not included in integration tests because docker build does not exploit Dockerfile.dockerignore
+# See https://github.com/moby/moby/issues/12886#issuecomment-523706042 for more details
 # This dockerfile makes sure Dockerfile.dockerignore is working
 # If so then ignore_relative/foo should copy to /foo
 # If not, then this image won't build because it will attempt to copy three files to /foo, which is a file not a directory
-FROM scratch 
+FROM scratch
 COPY ignore_relative/* /foo

pkg/util/fs_util_test.go

@@ -709,7 +709,7 @@ func Test_correctDockerignoreFileIsUsed(t *testing.T) {
 		{
 			name: "relative dockerfile used",
 			args: args{
-				dockerfilepath: "../../integration/dockerfiles/Dockerfile_test_dockerignore_relative",
+				dockerfilepath: "../../integration/dockerfiles/Dockerfile_dockerignore_relative",
 				buildcontext:   "../../integration/",
 				excluded:       []string{"ignore_relative/bar"},
 				included:       []string{"ignore_relative/foo", "ignore/bar"},