testing improved

.travis.yml

@@ -1,13 +1,12 @@
+dist: xenial
 language: python
 python:
 - '3.4'
 - '3.5'
 - '3.6'
+- '3.7'
+- '3.8'
 - 'pypy3'
-matrix:
-  include:
-  - python: 3.7
-    dist: xenial
 install:
 - pip install --quiet --upgrade coveralls pytest
 script: coverage run --source nested_diff setup.py test

pytest.ini

@@ -0,0 +1,7 @@
+[pytest]
+addopts = -vv --flake8
+testpaths = nested_diff tests
+
+flake8-max-line-length = 79
+flake8-ignore =
+    tests/* E501

setup.py

@@ -22,6 +22,7 @@
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: Python :: Implementation :: PyPy',
         'Topic :: Software Development :: Libraries :: Python Modules',
@@ -34,7 +35,7 @@
     packages=['nested_diff'],
     test_suite='tests',
     setup_requires=["pytest-runner"],
-    tests_require=['pytest', 'pyyaml'],
+    tests_require=['pytest', 'pytest-flake8', 'pyyaml'],
     entry_points={
         'console_scripts': [
             'nested_diff=nested_diff.diff_tool:cli',

tests/cli/diff_tool/test_diff_tool.py

@@ -1,12 +1,13 @@
 import json
+import pytest
 
 from unittest import mock
 
-from nested_diff.diff_tool import App as DiffApp
+import nested_diff.diff_tool
 
 
 def test_default_diff(capsys, expected, fullname):
-    DiffApp(args=(
+    nested_diff.diff_tool.App(args=(
         fullname('lists.a.json', shared=True),
         fullname('lists.b.json', shared=True),
     )).run()
@@ -19,7 +20,7 @@ def test_default_diff(capsys, expected, fullname):
 
 def test_default_diff_with_tty(capsys, expected, fullname, stringio_tty):
     with mock.patch('sys.stdout.isatty', return_value=True):
-        DiffApp(args=(
+        nested_diff.diff_tool.App(args=(
             fullname('lists.a.json', shared=True),
             fullname('lists.b.json', shared=True),
         )).run()
@@ -31,7 +32,7 @@ def test_default_diff_with_tty(capsys, expected, fullname, stringio_tty):
 
 
 def test_enable_U_ops(capsys, expected, fullname):
-    DiffApp(args=(
+    nested_diff.diff_tool.App(args=(
         fullname('lists.a.json', shared=True),
         fullname('lists.b.json', shared=True),
         '--ofmt', 'json',
@@ -44,7 +45,7 @@ def test_enable_U_ops(capsys, expected, fullname):
 
 
 def test_output_file(capsys, expected, fullname, testfile):
-    DiffApp(args=(
+    nested_diff.diff_tool.App(args=(
         fullname('lists.a.json', shared=True),
         fullname('lists.b.json', shared=True),
         '--ofmt', 'json',
@@ -59,7 +60,7 @@ def test_output_file(capsys, expected, fullname, testfile):
 
 
 def test_json_ofmt_opts(capsys, expected, fullname):
-    DiffApp(args=(
+    nested_diff.diff_tool.App(args=(
         fullname('lists.a.json', shared=True),
         fullname('lists.b.json', shared=True),
         '--ofmt', 'json',
@@ -72,7 +73,7 @@ def test_json_ofmt_opts(capsys, expected, fullname):
 
 
 def test_ini_ifmt(capsys, expected, fullname):
-    DiffApp(args=(
+    nested_diff.diff_tool.App(args=(
         fullname('lists.a.ini', shared=True),
         fullname('lists.b.ini', shared=True),
         '--ifmt', 'ini',
@@ -85,7 +86,7 @@ def test_ini_ifmt(capsys, expected, fullname):
 
 
 def test_multiline_default(capsys, expected, fullname):
-    DiffApp(args=(
+    nested_diff.diff_tool.App(args=(
         fullname('multiline.a.json', shared=True),
         fullname('multiline.b.json', shared=True),
     )).run()
@@ -96,7 +97,7 @@ def test_multiline_default(capsys, expected, fullname):
 
 
 def test_multiline_default_term(capsys, expected, fullname):
-    DiffApp(args=(
+    nested_diff.diff_tool.App(args=(
         fullname('multiline.a.json', shared=True),
         fullname('multiline.b.json', shared=True),
         '--ofmt', 'term',
@@ -108,7 +109,7 @@ def test_multiline_default_term(capsys, expected, fullname):
 
 
 def test_multiline_context_0(capsys, expected, fullname):
-    DiffApp(args=(
+    nested_diff.diff_tool.App(args=(
         fullname('multiline.a.json', shared=True),
         fullname('multiline.b.json', shared=True),
         '--text-ctx', '0'
@@ -120,7 +121,7 @@ def test_multiline_context_0(capsys, expected, fullname):
 
 
 def test_multiline_disabled(capsys, expected, fullname):
-    DiffApp(args=(
+    nested_diff.diff_tool.App(args=(
         fullname('multiline.a.json', shared=True),
         fullname('multiline.b.json', shared=True),
         '--text-ctx', '-1'
@@ -132,7 +133,7 @@ def test_multiline_disabled(capsys, expected, fullname):
 
 
 def test_text_ofmt(capsys, expected, fullname):
-    DiffApp(args=(
+    nested_diff.diff_tool.App(args=(
         fullname('lists.a.json', shared=True),
         fullname('lists.b.json', shared=True),
         '--ofmt', 'text',
@@ -144,7 +145,7 @@ def test_text_ofmt(capsys, expected, fullname):
 
 
 def test_term_ofmt(capsys, expected, fullname):
-    DiffApp(args=(
+    nested_diff.diff_tool.App(args=(
         fullname('lists.a.json', shared=True),
         fullname('lists.b.json', shared=True),
         '--ofmt', 'term',
@@ -156,7 +157,7 @@ def test_term_ofmt(capsys, expected, fullname):
 
 
 def test_yaml_ifmt(capsys, expected, fullname):
-    DiffApp(args=(
+    nested_diff.diff_tool.App(args=(
         fullname('lists.a.yaml', shared=True),
         fullname('lists.b.yaml', shared=True),
         '--ifmt', 'yaml',
@@ -169,7 +170,7 @@ def test_yaml_ifmt(capsys, expected, fullname):
 
 
 def test_yaml_ofmt(capsys, expected, fullname):
-    DiffApp(args=(
+    nested_diff.diff_tool.App(args=(
         fullname('lists.a.json', shared=True),
         fullname('lists.b.json', shared=True),
         '--ofmt', 'yaml',
@@ -181,7 +182,7 @@ def test_yaml_ofmt(capsys, expected, fullname):
 
 
 def test_exit_code_diff_absent(fullname):
-    code = DiffApp(args=(
+    code = nested_diff.diff_tool.App(args=(
         fullname('lists.a.json', shared=True),
         fullname('lists.a.json', shared=True),
     )).run()
@@ -190,7 +191,7 @@ def test_exit_code_diff_absent(fullname):
 
 
 def test_exit_code_diff_absent_U_opt_enabled(fullname):
-    code = DiffApp(args=(
+    code = nested_diff.diff_tool.App(args=(
         fullname('lists.a.json', shared=True),
         fullname('lists.a.json', shared=True),
         '-U=1',
@@ -200,9 +201,21 @@ def test_exit_code_diff_absent_U_opt_enabled(fullname):
 
 
 def test_exit_code_diff_present(fullname):
-    code = DiffApp(args=(
+    code = nested_diff.diff_tool.App(args=(
         fullname('lists.a.json', shared=True),
         fullname('lists.b.json', shared=True),
     )).run()
 
     assert code == 1
+
+
+def test_entry_point(capsys):
+    with mock.patch('sys.argv', ['nested_diff', '-h']):
+        with pytest.raises(SystemExit) as e:
+            nested_diff.diff_tool.cli()
+
+        assert e.value.code == 0
+
+    captured = capsys.readouterr()
+    assert captured.out.startswith('usage: nested_diff [-h] [--version]')
+    assert '' == captured.err

tests/cli/patch_tool/test_patch_tool.py

@@ -1,15 +1,18 @@
 import json
+import pytest
+
+from unittest import mock
 from shutil import copyfile
 
-from nested_diff.patch_tool import App as PatchApp
+import nested_diff.patch_tool
 
 
 def test_default_patch(capsys, content, fullname):
     copyfile(
         fullname('lists.a.json', shared=True),
         fullname('got'),
     )
-    PatchApp(args=(
+    nested_diff.patch_tool.App(args=(
         fullname('got'),
         fullname('lists.patch.json', shared=True),
     )).run()
@@ -27,7 +30,7 @@ def test_json_ofmt_opts(capsys, content, expected, fullname):
         fullname('lists.a.json', shared=True),
         fullname('got'),
     )
-    PatchApp(args=(
+    nested_diff.patch_tool.App(args=(
         fullname('got'),
         fullname('lists.patch.json', shared=True),
         '--ofmt', 'json',
@@ -46,7 +49,7 @@ def test_yaml_ifmt(capsys, content, fullname):
         fullname('lists.a.yaml', shared=True),
         fullname('got'),
     )
-    PatchApp(args=(
+    nested_diff.patch_tool.App(args=(
         fullname('got'),
         fullname('lists.patch.yaml', shared=True),
         '--ifmt', 'yaml',
@@ -66,7 +69,7 @@ def test_yaml_ofmt(capsys, content, expected, fullname):
         fullname('lists.a.json', shared=True),
         fullname('got'),
     )
-    PatchApp(args=(
+    nested_diff.patch_tool.App(args=(
         fullname('got'),
         fullname('lists.patch.json', shared=True),
         '--ofmt', 'yaml',
@@ -77,3 +80,15 @@ def test_yaml_ofmt(capsys, content, expected, fullname):
     assert '' == captured.err
 
     assert expected == content(fullname('got'))
+
+
+def test_entry_point(capsys):
+    with mock.patch('sys.argv', ['nested_patch', '-h']):
+        with pytest.raises(SystemExit) as e:
+            nested_diff.patch_tool.cli()
+
+        assert e.value.code == 0
+
+    captured = capsys.readouterr()
+    assert captured.out.startswith('usage: nested_patch [-h] [--version]')
+    assert '' == captured.err

tests/test_fmt_text_multiline.py

@@ -2,6 +2,15 @@
 from nested_diff.fmt import TextFormatter
 
 
+def test_equal():
+    a = 'A\nB\nC'
+    b = 'A\nB\nC'
+
+    got = TextFormatter().format(diff(a, b, U=False, multiline_diff_context=3))
+    print(got)
+    assert '' == got
+
+
 def test_line_added():
     a = 'B\nC'
     b = 'A\nB\nC'