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-rw-r--r--tests/test_api.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/tests/test_api.py b/tests/test_api.py
index 885f3370..5f7b3522 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -437,6 +437,7 @@ class ApiTest(CoverageTest):
self.make_good_data_files()
cov1 = coverage.Coverage()
cov1.combine()
+ assert self.stdout() == ""
cov1.save()
self.check_code1_code2(cov1)
self.assert_file_count(".coverage.*", 0)
@@ -448,6 +449,7 @@ class ApiTest(CoverageTest):
cov3 = coverage.Coverage()
cov3.combine()
+ assert self.stdout() == ""
# Now the data is empty!
_, statements, missing, _ = cov3.analysis("code1.py")
assert statements == [1]
@@ -469,6 +471,7 @@ class ApiTest(CoverageTest):
cov.save()
cov.combine()
+ assert self.stdout() == ""
self.check_code1_code2(cov)
def test_ordered_combine(self):
@@ -483,6 +486,7 @@ class ApiTest(CoverageTest):
def get_combined_filenames():
cov = coverage.Coverage()
cov.combine()
+ assert self.stdout() == ""
cov.save()
data = cov.get_data()
filenames = {relative_filename(f).replace("\\", "/") for f in data.measured_files()}