Add script to test a planemo wheel.

Test wheel directly in isolation by installing it into its own virtualenv and copying test data and required files out into a temp directory.

Progress toward issue #184.

scripts/test_wheel.bash

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+## TODO: fail if virtualenv is not located.
+
+set -e
+
+VERSION=$1
+
+# Ensure working directory is planemo project.
+SCRIPTS_DIRECTORY="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+PROJECT_DIRECTORY="${SCRIPTS_DIRECTORY}/.."
+DIST_DIRECTORY="${PROJECT_DIRECTORY}/dist"
+WHEEL_FILE="${DIST_DIRECTORY}/planemo-$VERSION-py2.py3-none-any.whl"
+DEV_REQUIREMENTS="${PROJECT_DIRECTORY}/dev-requirements.txt"
+
+cd $PROJECT_DIRECTORY
+
+
+WORKING_DIRECTORY=`mktemp -d -t planemotestXXXXXX`
+cp -r "$PROJECT_DIRECTORY"/{.coveragerc,setup.cfg,tests,project_templates} "$WORKING_DIRECTORY"
+
+cd "$WORKING_DIRECTORY"
+VIRTUALENV_DIRECTORY="$WORKING_DIRECTORY/venv"
+virtualenv "$VIRTUALENV_DIRECTORY"
+. "$VIRTUALENV_DIRECTORY/bin/activate"
+pip install "${WHEEL_FILE}"
+pip install -r "${DEV_REQUIREMENTS}"
+
+nosetests tests