1 files changed, 27 insertions, 0 deletions
diff --git a/var/spack/repos/builtin.mock/packages/dev-build-test-install/package.py b/var/spack/repos/builtin.mock/packages/dev-build-test-install/package.py
new file mode 100644
index 0000000000..0eb9648941
--- /dev/null
+++ b/var/spack/repos/builtin.mock/packages/dev-build-test-install/package.py
@@ -0,0 +1,27 @@
+# Copyright 2013-2019 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+
+class DevBuildTestInstall(Package):
+    homepage = "example.com"
+    url = "fake.com"
+
+    version('0.0.0', sha256='0123456789abcdefgh')
+
+    phases = ['edit', 'install']
+
+    filename = 'dev-build-test-file.txt'
+    original_string = "This file should be edited"
+    replacement_string = "This file has been edited"
+
+    def edit(self, spec, prefix):
+        with open(self.filename, 'r+') as f:
+            assert f.read() == self.original_string
+            f.seek(0)
+            f.truncate()
+            f.write(self.replacement_string)
+
+    def install(self, spec, prefix):
+        install(self.filename, prefix)