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# simplejenkinsapi/api_tests.py -- unit test for simplejenkinsapi/api.py
#
# Copyright 2012  Lars Wirzenius
# 
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.


import httplib
import json
import StringIO
import unittest

import simplejenkinsapi


class DummyResponse(object):

    def __init__(self, body, content_type):
        self.status = httplib.OK
        self.reason = 'yeah yeah'
        self.body = body
        self.content_type = content_type
        
    def getheader(self, header):
        if header == 'Content-Type':
            return self.content_type
        else:
            return ''
        
    def read(self):
        return self.body


class DummyServer(object):

    def __init__(self):
        self.routes = {}
        self.add_route('GET', '/api/json', self.toplevel)
        self.add_route('POST', '/job/job-1/doDelete', self.delete_job_1)
        self.add_route('POST', '/createItem?name=job-1', self.create_job_1)
        self.add_route('GET', '/job/job-1/config.xml', self.config_job_1)
        self.add_route('POST', '/job/job-1/config.xml', self.update_job_1)

        self.jobs = {}
        
        self.response = None

    def add_route(self, method, path, callback):
        key = (method, path)
        assert key not in self.routes
        self.routes[key] = callback

    def toplevel(self, body, headers):
        assert body == ''
        assert headers == {}

        result = []
        for job_id in sorted(self.jobs.keys()):
            result.append({
                'name': job_id,
            })

        obj = { 'jobs': result }
        return json.dumps(obj), 'application/json'

    def create_job_1(self, body, headers):
        assert 'job-1' not in self.jobs
        self.jobs['job-1'] = body
        return '', 'text/plain'

    def update_job_1(self, body, headers):
        assert 'job-1' in self.jobs
        self.jobs['job-1'] = body
        return '', 'text/plain'

    def delete_job_1(self, body, headers):
        del self.jobs['job-1']
        return '', 'text/plain'

    def config_job_1(self, body, headers):
        return self.jobs['job-1'], 'application/xml'

    def request(self, method, path, body=None, headers=None):
        key = (method, path)
        assert key in self.routes
        self.response, self.response_type = self.routes[key](body, headers)
        
    def getresponse(self):
        return DummyResponse(self.response, self.response_type)


class JenkinsTests(unittest.TestCase):

    def setUp(self):
        self.url = 'http://does.not.exist:8080/'
        self.jenkins = simplejenkinsapi.Jenkins(self.url)
        
        self.dummy_server = DummyServer()
        self.jenkins._connect = lambda: self.dummy_server
        
        self.config_xml = '''
            <?xml version="1.0" encoding="UTF-8"?>
            <project>
            </project>
        '''
        
        self.config_xml_2 = '''
            <?xml version="1.0" encoding="UTF-8"?>
            <project>
                <foo/>
            </project>
        '''
        
    def test_lists_no_jobs_when_there_are_none(self):
        self.assertEqual(self.jenkins.list_jobs(), [])
        
    def test_lists_single_job_when_one_exists(self):
        self.dummy_server.jobs = { 'job-1': '' }
        self.assertEqual(self.jenkins.list_jobs(), ['job-1'])

    def test_deletes_existing_job(self):
        self.dummy_server.jobs = { 'job-1': '' }
        self.jenkins.delete_job('job-1')
        self.assertEqual(self.jenkins.list_jobs(), [])

    def test_creates_job(self):
        self.jenkins.create_job('job-1', self.config_xml)
        self.assertEqual(self.jenkins.list_jobs(), ['job-1'])
        self.assertEqual(self.jenkins.get_job_config('job-1'), self.config_xml)

    def test_updates_job(self):
        self.jenkins.create_job('job-1', self.config_xml)
        self.jenkins.update_job('job-1', self.config_xml_2)
        self.assertEqual(self.jenkins.get_job_config('job-1'), 
                         self.config_xml_2)