Add test for the build command

tests/test_cli.py

@@ -1,11 +1,13 @@
 # -*- coding: utf-8 -*-
 
+import logging
 import os
 from click.testing import CliRunner
+from os.path import join
 
-from sigal import init
-from sigal import serve
-from sigal import set_meta
+from sigal import init, build, serve, set_meta
+
+TESTGAL = join(os.path.abspath(os.path.dirname(__file__)), 'sample')
 
 
 def test_init(tmpdir):
@@ -22,6 +24,44 @@ def test_init(tmpdir):
                              "keep it safe.\n")
 
 
+def test_build(tmpdir):
+    runner = CliRunner()
+    config_file = str(tmpdir.join('sigal.conf.py'))
+    tmpdir.mkdir('pictures')
+    tmpdir = str(tmpdir)
+    cwd = os.getcwd()
+
+    try:
+        result = runner.invoke(init, [config_file])
+        assert result.exit_code == 0
+        os.symlink(join(TESTGAL, 'pictures', 'dir2', 'exo20101028-b-full.jpg'),
+                   join(tmpdir, 'pictures', 'exo20101028-b-full.jpg'))
+
+        result = runner.invoke(build, ['-n', 1, '--debug'])
+        assert result.exit_code == 1
+
+        os.chdir(tmpdir)
+
+        result = runner.invoke(build, ['foo', '-n', 1, '--debug'])
+        assert result.exit_code == 1
+
+        result = runner.invoke(build, ['pictures', 'pictures/out',
+                                       '-n', 1, '--debug'])
+        assert result.exit_code == 1
+
+        result = runner.invoke(build, ['pictures', 'build',
+                                       '-n', 1, '--debug'])
+        assert result.exit_code == 0
+        assert os.path.isfile(join(tmpdir, 'build', 'thumbnails',
+                                   'exo20101028-b-full.jpg'))
+    finally:
+        os.chdir(cwd)
+        # Reset logger
+        logger = logging.getLogger('sigal')
+        logger.handlers[:] = []
+        logger.setLevel(logging.INFO)
+
+
 def test_serve(tmpdir):
     config_file = str(tmpdir.join('sigal.conf.py'))
     runner = CliRunner()
@@ -34,6 +74,7 @@ def test_serve(tmpdir):
     result = runner.invoke(serve, ['-c', config_file])
     assert result.exit_code == 1
 
+
 def test_set_meta(tmpdir):
 
     testdir = tmpdir.mkdir("test")
@@ -53,7 +94,8 @@ def test_set_meta(tmpdir):
     result = runner.invoke(set_meta, [str(testdir), "title", "testing"])
     assert result.exit_code == 2
 
-    result = runner.invoke(set_meta, [str(testdir.join("non-existant.jpg")), "title", "testing"])
+    result = runner.invoke(set_meta, [str(testdir.join("non-existant.jpg")),
+                                      "title", "testing"])
     assert result.exit_code == 1
 
     result = runner.invoke(set_meta, [str(testfile), "title", "testing"])