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Diffstat (limited to '')
| -rw-r--r-- | tests/test_idtracking.py | 290 |
1 files changed, 290 insertions, 0 deletions
diff --git a/tests/test_idtracking.py b/tests/test_idtracking.py new file mode 100644 index 0000000..4e1d2c3 --- /dev/null +++ b/tests/test_idtracking.py @@ -0,0 +1,290 @@ +from jinja2 import nodes +from jinja2.idtracking import symbols_for_node + + +def test_basics(): + for_loop = nodes.For( + nodes.Name("foo", "store"), + nodes.Name("seq", "load"), + [nodes.Output([nodes.Name("foo", "load")])], + [], + None, + False, + ) + tmpl = nodes.Template( + [nodes.Assign(nodes.Name("foo", "store"), nodes.Name("bar", "load")), for_loop] + ) + + sym = symbols_for_node(tmpl) + assert sym.refs == { + "foo": "l_0_foo", + "bar": "l_0_bar", + "seq": "l_0_seq", + } + assert sym.loads == { + "l_0_foo": ("undefined", None), + "l_0_bar": ("resolve", "bar"), + "l_0_seq": ("resolve", "seq"), + } + + sym = symbols_for_node(for_loop, sym) + assert sym.refs == { + "foo": "l_1_foo", + } + assert sym.loads == { + "l_1_foo": ("param", None), + } + + +def test_complex(): + title_block = nodes.Block( + "title", [nodes.Output([nodes.TemplateData("Page Title")])], False, False + ) + + render_title_macro = nodes.Macro( + "render_title", + [nodes.Name("title", "param")], + [], + [ + nodes.Output( + [ + nodes.TemplateData('\n <div class="title">\n <h1>'), + nodes.Name("title", "load"), + nodes.TemplateData("</h1>\n <p>"), + nodes.Name("subtitle", "load"), + nodes.TemplateData("</p>\n "), + ] + ), + nodes.Assign( + nodes.Name("subtitle", "store"), nodes.Const("something else") + ), + nodes.Output( + [ + nodes.TemplateData("\n <p>"), + nodes.Name("subtitle", "load"), + nodes.TemplateData("</p>\n </div>\n"), + nodes.If( + nodes.Name("something", "load"), + [ + nodes.Assign( + nodes.Name("title_upper", "store"), + nodes.Filter( + nodes.Name("title", "load"), + "upper", + [], + [], + None, + None, + ), + ), + nodes.Output( + [ + nodes.Name("title_upper", "load"), + nodes.Call( + nodes.Name("render_title", "load"), + [nodes.Const("Aha")], + [], + None, + None, + ), + ] + ), + ], + [], + [], + ), + ] + ), + ], + ) + + for_loop = nodes.For( + nodes.Name("item", "store"), + nodes.Name("seq", "load"), + [ + nodes.Output( + [ + nodes.TemplateData("\n <li>"), + nodes.Name("item", "load"), + nodes.TemplateData("</li>\n <span>"), + ] + ), + nodes.Include(nodes.Const("helper.html"), True, False), + nodes.Output([nodes.TemplateData("</span>\n ")]), + ], + [], + None, + False, + ) + + body_block = nodes.Block( + "body", + [ + nodes.Output( + [ + nodes.TemplateData("\n "), + nodes.Call( + nodes.Name("render_title", "load"), + [nodes.Name("item", "load")], + [], + None, + None, + ), + nodes.TemplateData("\n <ul>\n "), + ] + ), + for_loop, + nodes.Output([nodes.TemplateData("\n </ul>\n")]), + ], + False, + False, + ) + + tmpl = nodes.Template( + [ + nodes.Extends(nodes.Const("layout.html")), + title_block, + render_title_macro, + body_block, + ] + ) + + tmpl_sym = symbols_for_node(tmpl) + assert tmpl_sym.refs == { + "render_title": "l_0_render_title", + } + assert tmpl_sym.loads == { + "l_0_render_title": ("undefined", None), + } + assert tmpl_sym.stores == {"render_title"} + assert tmpl_sym.dump_stores() == { + "render_title": "l_0_render_title", + } + + macro_sym = symbols_for_node(render_title_macro, tmpl_sym) + assert macro_sym.refs == { + "subtitle": "l_1_subtitle", + "something": "l_1_something", + "title": "l_1_title", + "title_upper": "l_1_title_upper", + } + assert macro_sym.loads == { + "l_1_subtitle": ("resolve", "subtitle"), + "l_1_something": ("resolve", "something"), + "l_1_title": ("param", None), + "l_1_title_upper": ("resolve", "title_upper"), + } + assert macro_sym.stores == {"title", "title_upper", "subtitle"} + assert macro_sym.find_ref("render_title") == "l_0_render_title" + assert macro_sym.dump_stores() == { + "title": "l_1_title", + "title_upper": "l_1_title_upper", + "subtitle": "l_1_subtitle", + "render_title": "l_0_render_title", + } + + body_sym = symbols_for_node(body_block) + assert body_sym.refs == { + "item": "l_0_item", + "seq": "l_0_seq", + "render_title": "l_0_render_title", + } + assert body_sym.loads == { + "l_0_item": ("resolve", "item"), + "l_0_seq": ("resolve", "seq"), + "l_0_render_title": ("resolve", "render_title"), + } + assert body_sym.stores == set() + + for_sym = symbols_for_node(for_loop, body_sym) + assert for_sym.refs == { + "item": "l_1_item", + } + assert for_sym.loads == { + "l_1_item": ("param", None), + } + assert for_sym.stores == {"item"} + assert for_sym.dump_stores() == { + "item": "l_1_item", + } + + +def test_if_branching_stores(): + tmpl = nodes.Template( + [ + nodes.If( + nodes.Name("expression", "load"), + [nodes.Assign(nodes.Name("variable", "store"), nodes.Const(42))], + [], + [], + ) + ] + ) + + sym = symbols_for_node(tmpl) + assert sym.refs == {"variable": "l_0_variable", "expression": "l_0_expression"} + assert sym.stores == {"variable"} + assert sym.loads == { + "l_0_variable": ("resolve", "variable"), + "l_0_expression": ("resolve", "expression"), + } + assert sym.dump_stores() == { + "variable": "l_0_variable", + } + + +def test_if_branching_stores_undefined(): + tmpl = nodes.Template( + [ + nodes.Assign(nodes.Name("variable", "store"), nodes.Const(23)), + nodes.If( + nodes.Name("expression", "load"), + [nodes.Assign(nodes.Name("variable", "store"), nodes.Const(42))], + [], + [], + ), + ] + ) + + sym = symbols_for_node(tmpl) + assert sym.refs == {"variable": "l_0_variable", "expression": "l_0_expression"} + assert sym.stores == {"variable"} + assert sym.loads == { + "l_0_variable": ("undefined", None), + "l_0_expression": ("resolve", "expression"), + } + assert sym.dump_stores() == { + "variable": "l_0_variable", + } + + +def test_if_branching_multi_scope(): + for_loop = nodes.For( + nodes.Name("item", "store"), + nodes.Name("seq", "load"), + [ + nodes.If( + nodes.Name("expression", "load"), + [nodes.Assign(nodes.Name("x", "store"), nodes.Const(42))], + [], + [], + ), + nodes.Include(nodes.Const("helper.html"), True, False), + ], + [], + None, + False, + ) + + tmpl = nodes.Template( + [nodes.Assign(nodes.Name("x", "store"), nodes.Const(23)), for_loop] + ) + + tmpl_sym = symbols_for_node(tmpl) + for_sym = symbols_for_node(for_loop, tmpl_sym) + assert for_sym.stores == {"item", "x"} + assert for_sym.loads == { + "l_1_x": ("alias", "l_0_x"), + "l_1_item": ("param", None), + "l_1_expression": ("resolve", "expression"), + } |