summaryrefslogtreecommitdiff
path: root/tests/test_imports.py
blob: 67591270b044aef2a22e5e57228a5aa2571c1fce (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
# -*- coding: utf-8 -*-
"""
    jinja2.testsuite.imports
    ~~~~~~~~~~~~~~~~~~~~~~~~

    Tests the import features (with includes).

    :copyright: (c) 2010 by the Jinja Team.
    :license: BSD, see LICENSE for more details.
"""
import pytest

from jinja2 import Environment, DictLoader
from jinja2.exceptions import TemplateNotFound, TemplatesNotFound


@pytest.fixture
def test_env():
    env = Environment(loader=DictLoader(dict(
        module='{% macro test() %}[{{ foo }}|{{ bar }}]{% endmacro %}',
        header='[{{ foo }}|{{ 23 }}]',
        o_printer='({{ o }})'
    )))
    env.globals['bar'] = 23
    return env


@pytest.mark.imports
class TestImports(object):

    def test_context_imports(self, test_env):
        t = test_env.from_string('{% import "module" as m %}{{ m.test() }}')
        assert t.render(foo=42) == '[|23]'
        t = test_env.from_string(
            '{% import "module" as m without context %}{{ m.test() }}'
        )
        assert t.render(foo=42) == '[|23]'
        t = test_env.from_string(
            '{% import "module" as m with context %}{{ m.test() }}'
        )
        assert t.render(foo=42) == '[42|23]'
        t = test_env.from_string('{% from "module" import test %}{{ test() }}')
        assert t.render(foo=42) == '[|23]'
        t = test_env.from_string(
            '{% from "module" import test without context %}{{ test() }}'
        )
        assert t.render(foo=42) == '[|23]'
        t = test_env.from_string(
            '{% from "module" import test with context %}{{ test() }}'
        )
        assert t.render(foo=42) == '[42|23]'

    def test_trailing_comma(self, test_env):
        test_env.from_string('{% from "foo" import bar, baz with context %}')
        test_env.from_string('{% from "foo" import bar, baz, with context %}')
        test_env.from_string('{% from "foo" import bar, with context %}')
        test_env.from_string('{% from "foo" import bar, with, context %}')
        test_env.from_string('{% from "foo" import bar, with with context %}')

    def test_exports(self, test_env):
        m = test_env.from_string('''
            {% macro toplevel() %}...{% endmacro %}
            {% macro __private() %}...{% endmacro %}
            {% set variable = 42 %}
            {% for item in [1] %}
                {% macro notthere() %}{% endmacro %}
            {% endfor %}
        ''').module
        assert m.toplevel() == '...'
        assert not hasattr(m, '__missing')
        assert m.variable == 42
        assert not hasattr(m, 'notthere')


@pytest.mark.imports
@pytest.mark.includes
class TestIncludes(object):

    def test_context_include(self, test_env):
        t = test_env.from_string('{% include "header" %}')
        assert t.render(foo=42) == '[42|23]'
        t = test_env.from_string('{% include "header" with context %}')
        assert t.render(foo=42) == '[42|23]'
        t = test_env.from_string('{% include "header" without context %}')
        assert t.render(foo=42) == '[|23]'

    def test_choice_includes(self, test_env):
        t = test_env.from_string('{% include ["missing", "header"] %}')
        assert t.render(foo=42) == '[42|23]'

        t = test_env.from_string(
            '{% include ["missing", "missing2"] ignore missing %}'
        )
        assert t.render(foo=42) == ''

        t = test_env.from_string('{% include ["missing", "missing2"] %}')
        pytest.raises(TemplateNotFound, t.render)
        try:
            t.render()
        except TemplatesNotFound as e:
            assert e.templates == ['missing', 'missing2']
            assert e.name == 'missing2'
        else:
            assert False, 'thou shalt raise'

        def test_includes(t, **ctx):
            ctx['foo'] = 42
            assert t.render(ctx) == '[42|23]'

        t = test_env.from_string('{% include ["missing", "header"] %}')
        test_includes(t)
        t = test_env.from_string('{% include x %}')
        test_includes(t, x=['missing', 'header'])
        t = test_env.from_string('{% include [x, "header"] %}')
        test_includes(t, x='missing')
        t = test_env.from_string('{% include x %}')
        test_includes(t, x='header')
        t = test_env.from_string('{% include x %}')
        test_includes(t, x='header')
        t = test_env.from_string('{% include [x] %}')
        test_includes(t, x='header')

    def test_include_ignoring_missing(self, test_env):
        t = test_env.from_string('{% include "missing" %}')
        pytest.raises(TemplateNotFound, t.render)
        for extra in '', 'with context', 'without context':
            t = test_env.from_string('{% include "missing" ignore missing ' +
                                     extra + ' %}')
            assert t.render() == ''

    def test_context_include_with_overrides(self, test_env):
        env = Environment(loader=DictLoader(dict(
            main="{% for item in [1, 2, 3] %}{% include 'item' %}{% endfor %}",
            item="{{ item }}"
        )))
        assert env.get_template("main").render() == "123"

    def test_unoptimized_scopes(self, test_env):
        t = test_env.from_string("""
            {% macro outer(o) %}
            {% macro inner() %}
            {% include "o_printer" %}
            {% endmacro %}
            {{ inner() }}
            {% endmacro %}
            {{ outer("FOO") }}
        """)
        assert t.render().strip() == '(FOO)'

    def test_import_from_with_context(self):
        env = Environment(loader=DictLoader({
            'a': '{% macro x() %}{{ foobar }}{% endmacro %}',
        }))
        t = env.from_string('{% set foobar = 42 %}{% from "a" '
                            'import x with context %}{{ x() }}')
        assert t.render() == '42'