From 25a837bf796eb94d78740e21147d8cfd9d942241 Mon Sep 17 00:00:00 2001
From: Massimiliano Culpo <massimiliano.culpo@gmail.com>
Date: Tue, 9 Jun 2020 20:00:23 +0200
Subject: Testing: create mock executable fixture (#16999)

---
 lib/spack/spack/test/conftest.py | 17 +++++++++++++++++
 lib/spack/spack/test/relocate.py | 11 ++---------
 2 files changed, 19 insertions(+), 9 deletions(-)

(limited to 'lib')

diff --git a/lib/spack/spack/test/conftest.py b/lib/spack/spack/test/conftest.py
index ae8fa80ab7..bac5bcebf6 100644
--- a/lib/spack/spack/test/conftest.py
+++ b/lib/spack/spack/test/conftest.py
@@ -1099,3 +1099,20 @@ def clear_directive_functions():
     # proceeding with subsequent tests that may depend on the original
     # functions.
     spack.directives.DirectiveMeta._directives_to_be_executed = []
+
+
+@pytest.fixture
+def mock_executable(tmpdir):
+    """Factory to create a mock executable in a temporary directory that
+    output a custom string when run.
+    """
+    import jinja2
+
+    def _factory(name, output, subdir=('bin',)):
+        f = tmpdir.mkdir(*subdir).join(name)
+        t = jinja2.Template('#!/bin/bash\n{{ output }}\n')
+        f.write(t.render(output=output))
+        f.chmod(0o755)
+        return str(f)
+
+    return _factory
diff --git a/lib/spack/spack/test/relocate.py b/lib/spack/spack/test/relocate.py
index 6669b25eb4..551f1596f7 100644
--- a/lib/spack/spack/test/relocate.py
+++ b/lib/spack/spack/test/relocate.py
@@ -107,16 +107,9 @@ def expected_patchelf_path(request, mutable_database, monkeypatch):
 
 
 @pytest.fixture()
-def mock_patchelf(tmpdir):
-    import jinja2
-
+def mock_patchelf(tmpdir, mock_executable):
     def _factory(output):
-        f = tmpdir.mkdir('bin').join('patchelf')
-        t = jinja2.Template('#!/bin/bash\n{{ output }}\n')
-        f.write(t.render(output=output))
-        f.chmod(0o755)
-        return str(f)
-
+        return mock_executable('patchelf', output=output)
     return _factory
 
 
-- 
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