chore: fix developer utilities

Makefile

@@ -5,16 +5,18 @@ test: ## Run the integration tests.
 	@./run_test.sh $(target)
 
 .PHONY: test_tox
-test: ## Run the integration tests with tox
+test_tox: ## Run the integration tests with tox
 	@\
 	tox -e dbt_integration_$(target)
 
 .PHONY: dev
 dev: ## Installs dbt-* packages in develop mode along with development dependencies.
 	@\
 	echo "Install dbt-$(target)..."; \
-	python -m pip install --upgrade pip setuptools; \
-	python -m pip install dbt-core "dbt-$(target)";
+	python3 -m venv .venv; \
+	.venv/bin/python -m ensurepip; \
+	.venv/bin/python -m pip install --upgrade pip setuptools; \
+	.venv/bin/python -m pip install dbt-core "dbt-$(target)";
 
 .PHONY: setup-db
 setup-db: ## Setup Postgres database with docker-compose for system testing.

run_test.sh

@@ -1,7 +1,6 @@
 #!/bin/bash
 
 echo `pwd`
-cd integration_tests
 cp ci/sample.profiles.yml profiles.yml
 
 dbt --warn-error deps --target $1 || exit 1