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-rw-r--r--coverage/env.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/coverage/env.py b/coverage/env.py
index 68da83dd..a01bb816 100644
--- a/coverage/env.py
+++ b/coverage/env.py
@@ -124,3 +124,8 @@ METACOV = os.getenv('COVERAGE_COVERAGE', '') != ''
# Even when running tests, you can use COVERAGE_TESTING=0 to disable the
# test-specific behavior like contracts.
TESTING = os.getenv('COVERAGE_TESTING', '') == 'True'
+
+# Environment COVERAGE_NO_CONTRACTS=1 can turn off contracts while debugging
+# tests to remove noise from stack traces.
+# $set_env.py: COVERAGE_NO_CONTRACTS - Disable PyContracts to simplify stack traces.
+USE_CONTRACTS = TESTING and not bool(int(os.environ.get("COVERAGE_NO_CONTRACTS", 0)))