replace requirements-dev.txt with Pipfile

.travis.yml

@@ -6,10 +6,9 @@ python:
   - 3.5
   - 3.6
 install:
-  - pip install coverage
-  - pip install coveralls
-  - pip install -r requirements-dev.txt
+  - pip install pipenv --upgrade-strategy=only-if-needed
+  - pipenv install --dev
 script:
-  - coverage run --source=httprunner -m unittest discover
+  - pipenv run coverage run --source=httprunner -m unittest discover
 after_success:
-  - coveralls
+  - pipenv run coveralls

Pipfile

@@ -0,0 +1,25 @@
+[[source]]
+
+url = "https://pypi.python.org/simple"
+verify_ssl = true
+name = "pypi"
+
+
+[packages]
+
+requests = "*"
+pyyaml = "*"
+"jinja2" = "*"
+"har2case" = "*"
+colorama = "*"
+colorlog = "*"
+
+
+[dev-packages]
+
+flask = "*"
+coverage = "*"
+coveralls = "*"
+
+
+[scripts]

requirements-dev.txt

@@ -1,7 +0,0 @@
-requests
-PyYAML
-Jinja2
-har2case
-colorama
-colorlog
-flask