add test for save_model_report

Author: TomDonoghue

fooof/tests/objs/test_group.py

@@ -6,6 +6,8 @@
 They serve rather as 'smoke tests', for if anything fails completely.
 """
 
+import os
+
 import numpy as np
 from numpy.testing import assert_equal
 
@@ -17,7 +19,7 @@
 
 pd = safe_import('pandas')
 
-from fooof.tests.settings import TEST_DATA_PATH
+from fooof.tests.settings import TEST_DATA_PATH, TEST_REPORTS_PATH
 from fooof.tests.tutils import default_group_params, plot_test
 
 from fooof.objs.group import *
@@ -212,6 +214,13 @@ def test_fg_print(tfg):
     tfg.print_results()
     assert True
 
+def test_save_model_report(tfg):
+
+    file_name = 'test_group_model_report'
+    tfg.save_model_report(0, file_name, TEST_REPORTS_PATH)
+
+    assert os.path.exists(os.path.join(TEST_REPORTS_PATH, file_name + '.pdf'))
+
 def test_get_results(tfg):
     """Check get results method."""