[conda] use pip check

conda/meta.yaml

@@ -13,9 +13,9 @@ build:
   script:
     - cd {{ environ.get('RECIPE_DIR') + '/..' }}
     {% if environ.get('BUILD_EGG') and not os.path.exists('dist') %}
-    - python setup.py sdist --formats=zip
+    - "{{ PYTHON }} setup.py sdist --formats=zip"
     {% endif %}
-    - {{ PYTHON }} -m pip install --no-deps --ignore-installed .
+    - "{{ PYTHON }} -m pip install . -vv"
     # installs the documentation source, readme to share/doc so it is available
     # during test time
     - install -d "${PREFIX}/share/doc/{{ name }}"
@@ -56,12 +56,14 @@ requirements:
 
 test:
   requires:
+    - pip
     - sphinx_rtd_theme
     - pytest
     - pytest-cov
   imports:
     - {{ name }}
   commands:
+    - pip check
     - bdt -h
     - bdt -?
     - bdt --help