diff --git a/.gitignore b/.gitignore
index c6b39955f..16d39a434 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,10 @@ eth2.0-spec-tests/
 # Dynamically built from Markdown spec
 test_libs/pyspec/eth2spec/phase0/spec.py
 test_libs/pyspec/eth2spec/phase1/spec.py
+
+# coverage reports
+.htmlcov
+.coverage
+
+# local CI testing output
+test_libs/pyspec/test-reports
diff --git a/Makefile b/Makefile
index f79b89dad..9e658f35d 100644
--- a/Makefile
+++ b/Makefile
@@ -21,8 +21,10 @@ PY_SPEC_PHASE_1_DEPS = $(SPEC_DIR)/core/1_*.md
 
 PY_SPEC_ALL_TARGETS = $(PY_SPEC_PHASE_0_TARGETS) $(PY_SPEC_PHASE_1_TARGETS)
 
+COV_INDEX_FILE=$(PY_SPEC_DIR)/.htmlcov/index.html
 
-.PHONY: clean all test citest lint gen_yaml_tests pyspec phase0 phase1 install_test install_deposit_contract_test test_deposit_contract compile_deposit_contract 
+.PHONY: clean all test citest lint gen_yaml_tests pyspec phase0 phase1 install_test open_cov \
+        install_deposit_contract_test test_deposit_contract compile_deposit_contract
 
 all: $(PY_SPEC_ALL_TARGETS) $(YAML_TEST_DIR) $(YAML_TEST_TARGETS)
 
@@ -41,11 +43,15 @@ install_test:
 	cd $(PY_SPEC_DIR); python3 -m venv venv; . venv/bin/activate; pip3 install -r requirements-testing.txt;
 
 test: $(PY_SPEC_ALL_TARGETS)
-	cd $(PY_SPEC_DIR); . venv/bin/activate; python -m pytest eth2spec
+	cd $(PY_SPEC_DIR); . venv/bin/activate;	export PYTHONPATH="./"; \
+	python -m pytest --cov=eth2spec.phase0.spec --cov=eth2spec.phase1.spec --cov-report="html:.htmlcov" --cov-branch eth2spec
 
 citest: $(PY_SPEC_ALL_TARGETS)
-	cd $(PY_SPEC_DIR); mkdir -p test-reports/eth2spec; . venv/bin/activate;	\
-	python -m pytest --junitxml=test-reports/eth2spec/test_results_phase0.xml eth2spec
+	cd $(PY_SPEC_DIR); mkdir -p test-reports/eth2spec; . venv/bin/activate; \
+	python -m pytest --junitxml=test-reports/eth2spec/test_results.xml eth2spec
+
+open_cov:
+	((open "$(COV_INDEX_FILE)" || xdg-open "$(COV_INDEX_FILE)") &> /dev/null) &
 
 lint: $(PY_SPEC_ALL_TARGETS)
 	cd $(PY_SPEC_DIR); . venv/bin/activate; \
diff --git a/test_libs/pyspec/requirements-testing.txt b/test_libs/pyspec/requirements-testing.txt
index 331d0fa28..edd141650 100644
--- a/test_libs/pyspec/requirements-testing.txt
+++ b/test_libs/pyspec/requirements-testing.txt
@@ -2,3 +2,4 @@
 pytest>=3.6,<3.7
 ../config_helpers
 flake8==3.7.7
+pytest-cov