make ctrl-c responsive, stop on first error

Author: kevinjqliu

Makefile

@@ -18,7 +18,7 @@
 # Configuration Variables
 # ========================
 
-PYTEST_ARGS ?= -v  # Override with e.g. PYTEST_ARGS="-vv --tb=short"
+PYTEST_ARGS ?= -v -x  # Override with e.g. PYTEST_ARGS="-vv --tb=short"
 COVERAGE ?= 0      # Set COVERAGE=1 to enable coverage: make test COVERAGE=1
 COVERAGE_FAIL_UNDER ?= 85  # Minimum coverage % to pass: make coverage-report COVERAGE_FAIL_UNDER=70
 KEEP_COMPOSE ?= 0  # Set KEEP_COMPOSE=1 to keep containers after integration tests