use fixture in test_run_inputs.py

tests/test_run_inputs.py

@@ -2,6 +2,7 @@
 import subprocess
 
 from pytest import skip
+import pytest
 
 import run_inputs as ri
 from helper import cyclus_has_coin
@@ -11,16 +12,22 @@ def coin_skipper(filename):
     raise skip(filename + " cannot be executed since Cyclus was not installed "
                    "with COIN support")
 
-
-def test_inputs():
+def get_files():
     files, _, _ = ri.get_files(ri.input_path)
     for f in files:
-        absfile = os.path.join(ri.input_path, f)
-        with open(absfile) as fh:
-            src = fh.read()
-        if cyclus_has_coin() or "GrowthRegion" not in src:
-            testf = ri.TestFile(ri.cyclus_path, f, "-v0")
-            testf.run()
-            assert testf.passed, "Failed running {}".format(f)
-        else:
-            coin_skipper(absfile)
+        yield f
+
+@pytest.fixture(params=get_files())
+def file_fixture(request):
+    return request.param
+
+def test_inputs(file_fixture):
+    absfile = os.path.join(ri.input_path, file_fixture)
+    with open(absfile) as fh:
+        src = fh.read()
+    if cyclus_has_coin() or "GrowthRegion" not in src:
+        testf = ri.TestFile(ri.cyclus_path, file_fixture, "-v0")
+        testf.run()
+        assert testf.passed, "Failed running {}".format(file_fixture)
+    else:
+        coin_skipper(absfile)