1 files changed, 154 insertions, 0 deletions
diff --git a/tests/template_tests/syntax_tests/test_if_changed.py b/tests/template_tests/syntax_tests/test_if_changed.py
new file mode 100644
index 0000000000..446712dfd3
--- /dev/null
+++ b/tests/template_tests/syntax_tests/test_if_changed.py
@@ -0,0 +1,154 @@
+from django.test import TestCase
+
+from .utils import render, setup
+
+
+class IfChangedTagTests(TestCase):
+
+    @setup({'ifchanged01': '{% for n in num %}{% ifchanged %}{{ n }}{% endifchanged %}{% endfor %}'})
+    def test_ifchanged01(self):
+        output = render('ifchanged01', {'num': (1, 2, 3)})
+        self.assertEqual(output, '123')
+
+    @setup({'ifchanged02': '{% for n in num %}{% ifchanged %}{{ n }}{% endifchanged %}{% endfor %}'})
+    def test_ifchanged02(self):
+        output = render('ifchanged02', {'num': (1, 1, 3)})
+        self.assertEqual(output, '13')
+
+    @setup({'ifchanged03': '{% for n in num %}{% ifchanged %}{{ n }}{% endifchanged %}{% endfor %}'})
+    def test_ifchanged03(self):
+        output = render('ifchanged03', {'num': (1, 1, 1)})
+        self.assertEqual(output, '1')
+
+    @setup({'ifchanged04': '{% for n in num %}{% ifchanged %}{{ n }}{% endifchanged %}'
+                           '{% for x in numx %}{% ifchanged %}{{ x }}{% endifchanged %}'
+                           '{% endfor %}{% endfor %}'})
+    def test_ifchanged04(self):
+        output = render('ifchanged04', {'num': (1, 2, 3), 'numx': (2, 2, 2)})
+        self.assertEqual(output, '122232')
+
+    @setup({'ifchanged05': '{% for n in num %}{% ifchanged %}{{ n }}{% endifchanged %}'
+                           '{% for x in numx %}{% ifchanged %}{{ x }}{% endifchanged %}'
+                           '{% endfor %}{% endfor %}'})
+    def test_ifchanged05(self):
+        output = render('ifchanged05', {'num': (1, 1, 1), 'numx': (1, 2, 3)})
+        self.assertEqual(output, '1123123123')
+
+    @setup({'ifchanged06': '{% for n in num %}{% ifchanged %}{{ n }}{% endifchanged %}'
+                           '{% for x in numx %}{% ifchanged %}{{ x }}{% endifchanged %}'
+                           '{% endfor %}{% endfor %}'})
+    def test_ifchanged06(self):
+        output = render('ifchanged06', {'num': (1, 1, 1), 'numx': (2, 2, 2)})
+        self.assertEqual(output, '1222')
+
+    @setup({'ifchanged07': '{% for n in num %}{% ifchanged %}{{ n }}{% endifchanged %}'
+                           '{% for x in numx %}{% ifchanged %}{{ x }}{% endifchanged %}'
+                           '{% for y in numy %}{% ifchanged %}{{ y }}{% endifchanged %}'
+                           '{% endfor %}{% endfor %}{% endfor %}'})
+    def test_ifchanged07(self):
+        output = render('ifchanged07', {'num': (1, 1, 1), 'numx': (2, 2, 2), 'numy': (3, 3, 3)})
+        self.assertEqual(output, '1233323332333')
+
+    @setup({'ifchanged08': '{% for data in datalist %}{% for c,d in data %}'
+                           '{% if c %}{% ifchanged %}{{ d }}{% endifchanged %}'
+                           '{% endif %}{% endfor %}{% endfor %}'})
+    def test_ifchanged08(self):
+        output = render('ifchanged08', {'datalist': [
+            [(1, 'a'), (1, 'a'), (0, 'b'), (1, 'c')],
+            [(0, 'a'), (1, 'c'), (1, 'd'), (1, 'd'), (0, 'e')]
+        ]})
+        self.assertEqual(output, 'accd')
+
+    @setup({'ifchanged-param01': '{% for n in num %}{% ifchanged n %}..{% endifchanged %}'
+                                 '{{ n }}{% endfor %}'})
+    def test_ifchanged_param01(self):
+        """
+        Test one parameter given to ifchanged.
+        """
+        output = render('ifchanged-param01', {'num': (1, 2, 3)})
+        self.assertEqual(output, '..1..2..3')
+
+    @setup({'ifchanged-param02': '{% for n in num %}{% for x in numx %}{% ifchanged n %}..{% endifchanged %}'
+                                 '{{ x }}{% endfor %}{% endfor %}'})
+    def test_ifchanged_param02(self):
+        output = render('ifchanged-param02', {'num': (1, 2, 3), 'numx': (5, 6, 7)})
+        self.assertEqual(output, '..567..567..567')
+
+    @setup({'ifchanged-param03': '{% for n in num %}{{ n }}{% for x in numx %}'
+                                 '{% ifchanged x n %}{{ x }}{% endifchanged %}'
+                                 '{% endfor %}{% endfor %}'})
+    def test_ifchanged_param03(self):
+        """
+        Test multiple parameters to ifchanged.
+        """
+        output = render('ifchanged-param03', {'num': (1, 1, 2), 'numx': (5, 6, 6)})
+        self.assertEqual(output, '156156256')
+
+    @setup({'ifchanged-param04': '{% for d in days %}{% ifchanged %}{{ d.day }}{% endifchanged %}'
+                                 '{% for h in d.hours %}{% ifchanged d h %}{{ h }}{% endifchanged %}'
+                                 '{% endfor %}{% endfor %}'})
+    def test_ifchanged_param04(self):
+        """
+        Test a date+hour like construct, where the hour of the last day is
+        the same but the date had changed, so print the hour anyway.
+        """
+        output = render(
+            'ifchanged-param04',
+            {'days': [{'hours': [1, 2, 3], 'day': 1}, {'hours': [3], 'day': 2}]},
+        )
+        self.assertEqual(output, '112323')
+
+    @setup({'ifchanged-param05': '{% for d in days %}{% ifchanged d.day %}{{ d.day }}{% endifchanged %}'
+                                 '{% for h in d.hours %}{% ifchanged d.day h %}{{ h }}{% endifchanged %}'
+                                 '{% endfor %}{% endfor %}'})
+    def test_ifchanged_param05(self):
+        """
+        Logically the same as above, just written with explicit ifchanged
+        for the day.
+        """
+        output = render(
+            'ifchanged-param05',
+            {'days': [{'hours': [1, 2, 3], 'day': 1}, {'hours': [3], 'day': 2}]},
+        )
+        self.assertEqual(output, '112323')
+
+    @setup({'ifchanged-else01': '{% for id in ids %}{{ id }}'
+                                '{% ifchanged id %}-first{% else %}-other{% endifchanged %}'
+                                ',{% endfor %}'})
+    def test_ifchanged_else01(self):
+        """
+        Test the else clause of ifchanged.
+        """
+        output = render('ifchanged-else01', {'ids': [1, 1, 2, 2, 2, 3]})
+        self.assertEqual(output, '1-first,1-other,2-first,2-other,2-other,3-first,')
+
+    @setup({'ifchanged-else02': '{% for id in ids %}{{ id }}-'
+                                '{% ifchanged id %}{% cycle red,blue %}{% else %}grey{% endifchanged %}'
+                                ',{% endfor %}'})
+    def test_ifchanged_else02(self):
+        output = render('ifchanged-else02', {'ids': [1, 1, 2, 2, 2, 3]})
+        self.assertEqual(output, '1-red,1-grey,2-blue,2-grey,2-grey,3-red,')
+
+    @setup({'ifchanged-else03': '{% for id in ids %}{{ id }}'
+                                '{% ifchanged id %}-{% cycle red,blue %}{% else %}{% endifchanged %}'
+                                ',{% endfor %}'})
+    def test_ifchanged_else03(self):
+        output = render('ifchanged-else03', {'ids': [1, 1, 2, 2, 2, 3]})
+        self.assertEqual(output, '1-red,1,2-blue,2,2,3-red,')
+
+    @setup({'ifchanged-else04': '{% for id in ids %}'
+                                '{% ifchanged %}***{{ id }}*{% else %}...{% endifchanged %}'
+                                '{{ forloop.counter }}{% endfor %}'})
+    def test_ifchanged_else04(self):
+        output = render('ifchanged-else04', {'ids': [1, 1, 2, 2, 2, 3, 4]})
+        self.assertEqual(output, '***1*1...2***2*3...4...5***3*6***4*7')
+
+    @setup({'ifchanged-filter-ws': '{% load custom %}{% for n in num %}'
+                                   '{% ifchanged n|noop:"x y" %}..{% endifchanged %}{{ n }}'
+                                   '{% endfor %}'})
+    def test_ifchanged_filter_ws(self):
+        """
+        Test whitespace in filter arguments
+        """
+        output = render('ifchanged-filter-ws', {'num': (1, 2, 3)})
+        self.assertEqual(output, '..1..2..3')