Tweak Travis test script

Author: inducer

.travis.yml

@@ -6,12 +6,15 @@ python:
   - "3.6"
 
 # command to install dependencies
-install: "pip install -r requirements.dev.txt"
+install:
+    - "pip install -r requirements.dev.txt"
+    - "pip install -e ."
 
 # command to run tests
-script: pytest --cov=pudb test
+script:
+    - "cd test && pytest --cov=pudb test"
 
 after_success:
   - upload_coverage.sh
 
-sudo: false
+sudo: false