improved TCString support

binding-tests/Makefile

@@ -3,14 +3,16 @@ INC=-I ../lib
 LIB=-L ../target/debug
 RPATH=-Wl,-rpath,../target/debug 
 
-TESTS = replica.cpp uuid.cpp task.cpp
+TESTS = replica.cpp string.cpp uuid.cpp task.cpp
 
 .PHONY: all test
 
 all: test
 
 test: doctest
+	@rm -rf test-db
 	@./doctest --no-version --no-intro
+	@rm -rf test-db
 
 %.o: %.cpp ../lib/taskchampion.h
 	$(CXX) $(INC) -c $< -o $@