Fixed #23768 -- Rewrote template tests as unit tests.

tests/template_tests/syntax_tests/test_exceptions.py

@@ -0,0 +1,61 @@
+from django.conf import settings
+from django.template.base import TemplateDoesNotExist, TemplateSyntaxError
+from django.template.loader import get_template
+from django.test import TestCase
+
+from .test_extends import inheritance_templates
+from .utils import render, setup
+
+
+class ExceptionsTests(TestCase):
+
+    @setup({'exception01': "{% extends 'nonexistent' %}"})
+    def test_exception01(self):
+        """
+        Raise exception for invalid template name
+        """
+        with self.assertRaises(TemplateDoesNotExist):
+            render('exception01')
+
+    @setup({'exception02': '{% extends nonexistent %}'})
+    def test_exception02(self):
+        """
+        Raise exception for invalid variable template name
+        """
+        if settings.TEMPLATE_STRING_IF_INVALID:
+            with self.assertRaises(TemplateDoesNotExist):
+                render('exception02')
+        else:
+            with self.assertRaises(TemplateSyntaxError):
+                render('exception02')
+
+    @setup(
+        {'exception03': "{% extends 'inheritance01' %}"
+                        "{% block first %}2{% endblock %}{% extends 'inheritance16' %}"},
+        inheritance_templates,
+    )
+    def test_exception03(self):
+        """
+        Raise exception for extra {% extends %} tags
+        """
+        with self.assertRaises(TemplateSyntaxError):
+            get_template('exception03')
+
+    @setup(
+        {'exception04': "{% extends 'inheritance17' %}{% block first %}{% echo 400 %}5678{% endblock %}"},
+        inheritance_templates,
+    )
+    def test_exception04(self):
+        """
+        Raise exception for custom tags used in child with {% load %} tag in parent, not in child
+        """
+        with self.assertRaises(TemplateSyntaxError):
+            get_template('exception04')
+
+    @setup({'exception05': '{% block first %}{{ block.super }}{% endblock %}'})
+    def test_exception05(self):
+        """
+        Raise exception for block.super used in base template
+        """
+        with self.assertRaises(TemplateSyntaxError):
+            render('exception05')