added test to the install_data command

command/install_data.py

@@ -12,7 +12,7 @@ from types import StringType
 from distutils.core import Command
 from distutils.util import change_root, convert_path
 
-class install_data (Command):
+class install_data(Command):
 
     description = "install data files"
 
@@ -27,12 +27,11 @@ class install_data (Command):
 
     boolean_options = ['force']
 
-    def initialize_options (self):
+    def initialize_options(self):
         self.install_dir = None
         self.outfiles = []
         self.root = None
         self.force = 0
-
         self.data_files = self.distribution.data_files
         self.warn_dir = 1
 
@@ -43,7 +42,7 @@ class install_data (Command):
                                    ('force', 'force'),
                                   )
 
-    def run (self):
+    def run(self):
         self.mkpath(self.install_dir)
         for f in self.data_files:
             if type(f) is StringType:
@@ -76,8 +75,8 @@ class install_data (Command):
                         (out, _) = self.copy_file(data, dir)
                         self.outfiles.append(out)
 
-    def get_inputs (self):
+    def get_inputs(self):
         return self.data_files or []
 
-    def get_outputs (self):
+    def get_outputs(self):
         return self.outfiles

tests/test_install_data.py

+"""Tests for distutils.command.install_data."""
+import sys
+import os
+import unittest
+import getpass
+
+from distutils.command.install_data import install_data
+from distutils.tests import support
+
+class InstallDataTestCase(support.TempdirManager,
+                          support.LoggingSilencer,
+                          unittest.TestCase):
+
+    def test_simple_run(self):
+        pkg_dir, dist = self.create_dist()
+        cmd = install_data(dist)
+        cmd.install_dir = inst = os.path.join(pkg_dir, 'inst')
+
+        # data_files can contain
+        #  - simple files
+        #  - a tuple with a path, and a list of file
+        one = os.path.join(pkg_dir, 'one')
+        self.write_file(one, 'xxx')
+        inst2 = os.path.join(pkg_dir, 'inst2')
+        two = os.path.join(pkg_dir, 'two')
+        self.write_file(two, 'xxx')
+
+        cmd.data_files = [one, (inst2, [two])]
+        self.assertEquals(cmd.get_inputs(), [one, (inst2, [two])])
+
+        # let's run the command
+        cmd.ensure_finalized()
+        cmd.run()
+
+        # let's check the result
+        self.assertEquals(len(cmd.get_outputs()), 2)
+        rtwo = os.path.split(two)[-1]
+        self.assert_(os.path.exists(os.path.join(inst2, rtwo)))
+        rone = os.path.split(one)[-1]
+        self.assert_(os.path.exists(os.path.join(inst, rone)))
+        cmd.outfiles = []
+
+        # let's try with warn_dir one
+        cmd.warn_dir = 1
+        cmd.ensure_finalized()
+        cmd.run()
+
+        # let's check the result
+        self.assertEquals(len(cmd.get_outputs()), 2)
+        self.assert_(os.path.exists(os.path.join(inst2, rtwo)))
+        self.assert_(os.path.exists(os.path.join(inst, rone)))
+        cmd.outfiles = []
+
+        # now using root and empty dir
+        cmd.root = os.path.join(pkg_dir, 'root')
+        inst3 = os.path.join(cmd.install_dir, 'inst3')
+        inst4 = os.path.join(pkg_dir, 'inst4')
+        three = os.path.join(cmd.install_dir, 'three')
+        self.write_file(three, 'xx')
+        cmd.data_files = [one, (inst2, [two]),
+                          ('inst3', [three]),
+                          (inst4, [])]
+        cmd.ensure_finalized()
+        cmd.run()
+
+        # let's check the result
+        self.assertEquals(len(cmd.get_outputs()), 4)
+        self.assert_(os.path.exists(os.path.join(inst2, rtwo)))
+        self.assert_(os.path.exists(os.path.join(inst, rone)))
+
+def test_suite():
+    return unittest.makeSuite(InstallDataTestCase)
+
+if __name__ == "__main__":
+    unittest.main(defaultTest="test_suite")