Added unit test framework and empty Cache class file.

.gitignore

+*.swp
+*~
+*.pyc

Makefile

+OMIT=/usr/share/pyshared/*,/usr/local/lib/python*,*__init__.py,test*
+COVERAGE_OUTPUT_DIR=coverage
+TESTS=`find tests -name test_\*.py`
+
+# Find python coverage version
+ifeq ($(findstring python-coverage,$(wildcard /usr/bin/*)), python-coverage)
+COVERAGE=/usr/bin/python-coverage
+else
+COVERAGE=`which coverage`
+endif
+
+all:
+
+# Unit tests
+test:
+	@for t in ${TESTS}; do \
+		python test.py $$t; \
+	done
+
+# Cleanup
+clean:
+	rm -rf .coverage ${COVERAGE_OUTPUT_DIR}
+
+distclean: clean
+	rm -rf `find -name \*.pyc`
+
+# Code coverage (differs between versions)
+coverage: .coverage
+
+ifeq ($(findstring python-coverage,$(wildcard /usr/bin/*)), python-coverage)
+.coverage:
+	@${COVERAGE} erase
+	@rm -f ${COVERAGE_OUTPUT_DIR}/*
+	@mkdir -p ${COVERAGE_OUTPUT_DIR} 2>/dev/null || true
+	@for t in ${TESTS}; do \
+		${COVERAGE} -x test.py $$t; \
+		${COVERAGE} combine; \
+	done
+	@${COVERAGE} html --omit=${OMIT} -d ${COVERAGE_OUTPUT_DIR}
+	@rm $@
+	@echo "Coverage report created in ${COVERAGE_OUTPUT_DIR}/index.html"
+else
+.coverage:
+	@mkdir -p ${COVERAGE_OUTPUT_DIR} 2>/dev/null || true
+	@${COVERAGE} erase
+	@for t in ${TESTS}; do \
+		${COVERAGE} --omit ${OMIT} -x test.py $$t; \
+		${COVERAGE} --omit ${OMIT} -c; \
+	done
+	@${COVERAGE} html --omit ${OMIT} --dir ${COVERAGE_OUTPUT_DIR}
+	@rm $@
+	@echo "Coverage report created in ${COVERAGE_OUTPUT_DIR}/index.html"
+endif

src/cache.py

+class Cache:
+    pass

test.py

+#!/usr/bin/env python
+from testrunner import main
+import sys
+
+main(sys.argv[1:])

tests/test_cache.py

+import unittest
+
+
+class TestCache(unittest.TestCase):
+    pass