Fix ZeroDivisionError in slice, batch, and divisibleby with 0 args

src/jinja2/filters.py

@@ -1074,6 +1074,11 @@ def sync_do_slice(
     If you pass it a second argument it's used to fill missing
     values on the last iteration.
     """
+    if slices <= 0:
+        raise FilterArgumentError(
+            f"slice: 'slices' must be greater than 0, got {slices}"
+        )
+
     seq = list(value)
     length = len(seq)
     items_per_slice = length // slices
@@ -1125,6 +1130,11 @@ def do_batch(
         {%- endfor %}
         </table>
     """
+    if linecount <= 0:
+        raise FilterArgumentError(
+            f"batch: 'linecount' must be greater than 0, got {linecount}"
+        )
+
     tmp: list[V] = []
 
     for item in value:

src/jinja2/tests.py

@@ -24,6 +24,8 @@ def test_even(value: int) -> bool:
 
 def test_divisibleby(value: int, num: int) -> bool:
     """Check if a variable is divisible by a number."""
+    if num == 0:
+        return False
     return value % num == 0
 
 

tests/test_filters.py

@@ -70,6 +70,13 @@ class TestFilter:
             "[[0, 1, 2], [3, 4, 5], [6, 7, 8], [9, 'X', 'X']]"
         )
 
+    def test_batch_zero(self, env):
+        from jinja2.exceptions import FilterArgumentError
+
+        tmpl = env.from_string("{{ foo|batch(0)|list }}")
+        with pytest.raises(FilterArgumentError):
+            tmpl.render(foo=list(range(10)))
+
     def test_slice(self, env):
         tmpl = env.from_string("{{ foo|slice(3)|list }}|{{ foo|slice(3, 'X')|list }}")
         out = tmpl.render(foo=list(range(10)))
@@ -78,6 +85,13 @@ class TestFilter:
             "[[0, 1, 2, 3], [4, 5, 6, 'X'], [7, 8, 9, 'X']]"
         )
 
+    def test_slice_zero(self, env):
+        from jinja2.exceptions import FilterArgumentError
+
+        tmpl = env.from_string("{{ foo|slice(0)|list }}")
+        with pytest.raises(FilterArgumentError):
+            tmpl.render(foo=list(range(10)))
+
     def test_escape(self, env):
         tmpl = env.from_string("""{{ '<">&'|escape }}""")
         out = tmpl.render()

tests/test_tests.py

@@ -27,6 +27,10 @@ class TestTestsCase:
         tmpl = env.from_string("""{{ "foo" is lower }}|{{ "FOO" is lower }}""")
         assert tmpl.render() == "True|False"
 
+    def test_divisibleby_zero(self, env):
+        tmpl = env.from_string("{{ 5 is divisibleby(0) }}")
+        assert tmpl.render() == "False"
+
     # Test type checks
     @pytest.mark.parametrize(
         "op,expect",