1 files changed, 109 insertions, 0 deletions
diff --git a/tests/test_ext_todo.py b/tests/test_ext_todo.py
new file mode 100644
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--- /dev/null
+++ b/tests/test_ext_todo.py
@@ -0,0 +1,109 @@
+"""Test sphinx.ext.todo extension."""
+
+import re
+
+import pytest
+
+
+@pytest.mark.sphinx('html', testroot='ext-todo', freshenv=True,
+                    confoverrides={'todo_include_todos': True, 'todo_emit_warnings': True})
+def test_todo(app, status, warning):
+    todos = []
+
+    def on_todo_defined(app, node):
+        todos.append(node)
+
+    app.connect('todo-defined', on_todo_defined)
+    app.builder.build_all()
+
+    # check todolist
+    content = (app.outdir / 'index.html').read_text(encoding='utf8')
+    assert ('<p class="admonition-title">Todo</p>\n'
+            '<p>todo in foo</p>') in content
+
+    assert ('<p class="admonition-title">Todo</p>\n'
+            '<p>todo in bar</p>') in content
+
+    # check todo
+    content = (app.outdir / 'foo.html').read_text(encoding='utf8')
+    assert ('<p class="admonition-title">Todo</p>\n'
+            '<p>todo in foo</p>') in content
+
+    assert ('<p class="admonition-title">Todo</p>\n'
+            '<p>todo in param field</p>') in content
+
+    # check emitted warnings
+    assert 'WARNING: TODO entry found: todo in foo' in warning.getvalue()
+    assert 'WARNING: TODO entry found: todo in bar' in warning.getvalue()
+
+    # check handled event
+    assert len(todos) == 3
+    assert {todo[1].astext() for todo in todos} == {'todo in foo',
+                                                    'todo in bar',
+                                                    'todo in param field'}
+
+
+@pytest.mark.sphinx('html', testroot='ext-todo', freshenv=True,
+                    confoverrides={'todo_include_todos': False, 'todo_emit_warnings': True})
+def test_todo_not_included(app, status, warning):
+    todos = []
+
+    def on_todo_defined(app, node):
+        todos.append(node)
+
+    app.connect('todo-defined', on_todo_defined)
+    app.builder.build_all()
+
+    # check todolist
+    content = (app.outdir / 'index.html').read_text(encoding='utf8')
+    assert ('<p class="admonition-title">Todo</p>\n'
+            '<p>todo in foo</p>') not in content
+
+    assert ('<p class="admonition-title">Todo</p>\n'
+            '<p>todo in bar</p>') not in content
+
+    # check todo
+    content = (app.outdir / 'foo.html').read_text(encoding='utf8')
+    assert ('<p class="admonition-title">Todo</p>\n'
+            '<p>todo in foo</p>') not in content
+
+    # check emitted warnings
+    assert 'WARNING: TODO entry found: todo in foo' in warning.getvalue()
+    assert 'WARNING: TODO entry found: todo in bar' in warning.getvalue()
+
+    # check handled event
+    assert len(todos) == 3
+    assert {todo[1].astext() for todo in todos} == {'todo in foo',
+                                                    'todo in bar',
+                                                    'todo in param field'}
+
+
+@pytest.mark.sphinx('latex', testroot='ext-todo', freshenv=True,
+                    confoverrides={'todo_include_todos': True})
+def test_todo_valid_link(app, status, warning):
+    """
+    Test that the inserted "original entry" links for todo items have a target
+    that exists in the LaTeX output. The target was previously incorrectly
+    omitted (GitHub issue #1020).
+    """
+
+    # Ensure the LaTeX output is built.
+    app.builder.build_all()
+
+    content = (app.outdir / 'python.tex').read_text(encoding='utf8')
+
+    # Look for the link to foo. Note that there are two of them because the
+    # source document uses todolist twice. We could equally well look for links
+    # to bar.
+    link = (r'{\\hyperref\[\\detokenize{(.*?foo.*?)}]{\\sphinxcrossref{'
+            r'\\sphinxstyleemphasis{original entry}}}}')
+    m = re.findall(link, content)
+    assert len(m) == 4
+    target = m[0]
+
+    # Look for the targets of this link.
+    labels = re.findall(r'\\label{\\detokenize{([^}]*)}}', content)
+    matched = [l for l in labels if l == target]
+
+    # If everything is correct we should have exactly one target.
+    assert len(matched) == 1