def test_ident():
ident = Ident("string", "value", True)
assert ident.string == "string"
assert ident.value == "value"
assert ident.mixin is True
assert ident.node_name == "ident"
assert ident.is_empty() is False
def populate_global_scope(self):
"""
Populate the global scope with:
- css colors
- user-defined globals
:return:
"""
self.common._scope = Scope()
# colors
for color, value in colors.items():
rgba = RGBA(value[0], value[1], value[2], value[3])
ident = Ident(color, rgba)
rgba.name = color
self.common.scope().add(ident)
# todo: should this be here?
# self.common.scope().add(Ident('embedurl',
# Function('embedurl', url.fn,
# lineno=self.parser.lineno,
# column=self.parser.column)))
# user defined globals
commons = self.commons
for common, val in commons.items():
if val.name:
self.common.scope().add(Ident(common, val))
def test_ident_no_value():
ident = Ident("node_name", None, True)
assert ident.node_name == "ident"
assert ident.string == "node_name"
assert ident.value == null
assert ident.mixin is True
assert ident.is_empty() is False
def test_parser_property():
parser = Parser("color: red\n", {})
property = parser.property()
assert property.segments[0] == Ident(
"color", null, False, lineno=1, column=1
)
assert property.expr.nodes[0] == Ident(
"red", null, False, lineno=1, column=8
)
def test_scope_add():
scope = Scope()
scope.add(Ident("one", 1))
assert scope.commons["one"] == 1
scope.add(Ident(None, None))
assert scope.commons[None] == null
scope.add(Ident("two"))
assert scope.commons["two"] == null
assert str(scope) == "[Scope @one, @None, @two]"
def test_stack():
stack = Stack()
block = Block(Ident("hello", "there"), Ident("foo", "bar"))
assert stack.get_block_frame(block) is None
frame = Frame(block)
stack.append(frame)
assert len(stack) == 1
assert stack.get_block_frame(block) == frame
assert stack.current_frame() == frame
def test_feature():
foo = Ident("foo")
bar = Ident("bar")
feature = Feature([foo, bar])
assert feature.node_name == "feature"
assert feature.segments == [foo, bar]
assert feature.expr is None
expression = Expression()
feature.expr = expression
assert feature.expr == expression
def test_lexer_ident_space():
lexer = Lexer("abc def klm:\n xyz abc\n", {})
tokens = [token for token in lexer]
from stilus.nodes.null import null
assert tokens[0] == Token("ident", Ident("abc", null), lineno=1, column=1)
assert tokens[1] == Token("space", lineno=1, column=4)
assert tokens[2] == Token("ident", Ident("def", null), lineno=1, column=5)
assert tokens[3] == Token("space", lineno=1, column=8)
assert tokens[4] == Token("ident", Ident("klm", null), lineno=1, column=9)
def split(delim, value, evaluator=None):
assert_string(delim, "delimiter")
assert_string(value, "val")
words = value.string.split(delim.string)
expr = Expression()
for word in words:
if isinstance(value, Ident):
addition = Ident(word)
else:
addition = String(word)
expr.append(Ident(addition))
return expr
def test_scope_lookup():
scope = Scope()
scope.add(Ident("one", 1))
scope.add(Ident("two"))
scope.add(Ident("three", true))
assert len(scope.commons) == 3
assert scope.lookup("one") == 1
assert scope.lookup("two") == null
assert scope.lookup("three") == true
assert scope.lookup("four") is None
assert scope.lookup(None) is None
assert str(scope) == "[Scope @one, @two, @three]"
def test_lexer_is_part_of_selector():
lexer = Lexer("^if.null,[bar],abc color: black\n", {})
assert lexer.next() == Token("selector", "^", lineno=1, column=1)
assert lexer.next() == Token("if", "if", lineno=1, column=2)
assert lexer.next() == Token(".", ".", "", lineno=1, column=4)
assert lexer.next() == Token("ident", Ident("null"), lineno=1, column=5)
lexer = Lexer("^#fif: black\n", {})
assert lexer.next() == Token("selector", "^", lineno=1, column=1)
assert lexer.next() == Token(
"color", RGBA(255, 255, 255, 1), lineno=1, column=2
)
assert lexer.next() == Token("ident", Ident("if"), lineno=1, column=4)
def test_lexer_ident_colon_null_newline_eos():
lexer = Lexer("abc:\n color: null\n", {})
tokens = [token for token in lexer]
from stilus.nodes.null import null
assert tokens[0] == Token("ident", Ident("abc", null), lineno=1, column=1)
assert tokens[1] == Token(":", ":", "", lineno=1, column=4)
assert tokens[2] == Token(
"ident", Ident("color", null), lineno=1, column=5
)
assert tokens[3] == Token(":", ":", " ", lineno=2, column=11)
assert tokens[4] == Token("null", value=null, lineno=2, column=13)
assert tokens[5] == Token("newline", lineno=2, column=17)
assert tokens[6] == Token("eos", lineno=3, column=1)
def test_parser_parse_basic():
parser = Parser("abc\n color: red\n", {})
root = parser.parse()
assert root.node_name == "root"
assert root.nodes[0].node_name == "group"
selector = root.nodes[0].nodes[0]
assert selector.segments[0] == Literal("abc")
assert selector.block.parent == root
assert selector.block.node.node_name == "group"
property = selector.block.nodes[0]
assert property.node_name == "property"
assert len(property.segments) == 1
assert property.segments[0] == Ident("color", null, lineno=2, column=3)
assert len(property.expr.nodes) == 1
assert property.expr.nodes[0] == Ident("red", null, lineno=2, column=10)
def test_lexer_ident_colon_colors():
lexer = Lexer("abc: #11223311, #aabbcc, #abc1, #fff, #dd, #e", {})
tokens = [token for token in lexer]
from stilus.nodes.null import null
assert tokens[0] == Token("ident", Ident("abc", null), lineno=1, column=1)
assert tokens[1] == Token(":", ":", " ", lineno=1, column=4)
assert tokens[2] == Token(
"color", RGBA(17, 34, 51, 0.67), lineno=1, column=6
)
assert tokens[4] == Token(
"color", RGBA(170, 187, 204, 1), lineno=1, column=17
)
assert tokens[6] == Token(
"color", RGBA(170, 187, 204, 0.067), lineno=1, column=26
)
assert tokens[8] == Token(
"color", RGBA(255, 255, 255, 1), lineno=1, column=33
)
assert tokens[10] == Token(
"color", RGBA(221, 221, 221, 1), lineno=1, column=39
)
assert tokens[12] == Token(
"color", RGBA(238, 238, 238, 1), lineno=1, column=44
)
def test_parser_peek_lookahead_and_next():
parser = Parser("abc\n color: red\n", {})
# next
node = parser.next()
assert node.type == "ident"
assert node.value == Ident("abc", lineno=1, column=1)
node = parser.next()
assert node.type == "indent"
assert node.value is None
# peek
assert parser.peek().type == "ident"
assert parser.peek().type == "ident"
assert parser.peek().type == "ident"
# lookahead
assert parser.lookahead(1) == parser.peek()
assert parser.lookahead(2).type == ":"
assert parser.lookahead(2).value == ":"
assert parser.lookahead(2).space == " "
# next
parser.next()
node = parser.next()
assert node.type == ":"
assert node.value == ":"
assert node.space == " "
# combo
assert parser.peek().type == "ident"
parser.next()
assert parser.peek().type == "outdent"
parser.next()
assert parser.peek().type == "eos"
def test_frame_lookup():
frame = Frame(Block("hello", "there"))
scope = Scope()
scope.add(Ident("foo", "bar"))
frame._scope = scope
assert frame.lookup("foo") == "bar"
assert frame.lookup("unknown") is None
def test_lexer_functions():
lexer = Lexer(
"mixin(add) {\n"
" mul = @(c, d) {\n"
" c * d\n"
" }\n"
" width: add(2, 3) + mul(4, 5)\n"
"}\n",
{},
)
tokens = [token for token in lexer]
assert tokens[0] == Token(
"function", Ident("mixin", null), "", lineno=1, column=1
)
anon_fun_token = Token("function", Ident("anonymous"), lineno=2, column=9)
anon_fun_token.anonymous = True
assert tokens[8] == anon_fun_token
def test_property_color_red():
# color: red
expression = Expression()
expression.append(Ident("red"))
property = Property(["color"], expression)
assert property.expr == expression
assert len(property.segments) == 1
assert f"{property}" == "property(color, (red))"
def test_parser_selector():
parser = Parser("abc\n color: red\n", {})
selector = parser.stmt_selector()
assert selector.node_name == "group"
assert type(selector) == Group
assert len(selector.nodes) == 1
assert selector.nodes[0].node_name == "selector"
assert len(selector.nodes[0].segments) == 1
assert selector.nodes[0].segments[0] == Literal("abc")
block = selector.nodes[0].block
assert block.node_name == "block"
assert len(block.nodes) == 1
property = block.nodes[0]
assert property.node_name == "property"
assert len(property.segments) == 1
assert property.segments[0] == Ident("color", null, lineno=2, column=3)
assert len(property.expr.nodes) == 1
assert property.expr.nodes[0] == Ident("red", null, lineno=2, column=10)
def replace(pattern, replacement, value, evaluator=None):
assert_string(pattern, "pattern")
assert_string(replacement, "replacement")
assert_string(value, "value")
result = value.string.replace(pattern.string, replacement.string)
if isinstance(value, Ident):
return Ident(result)
else:
return String(result)
def test_lexer_peek():
lexer = Lexer("abc:\n color: #11223311\n", {})
abc = Token("ident", Ident("abc", null), lineno=1, column=1)
assert lexer.peek() == abc
assert lexer.peek() == abc
assert lexer.next() == abc
colon = Token(":", ":", "", lineno=1, column=4)
assert lexer.peek() == Token(":", ":", "", lineno=1, column=4)
assert lexer.next() == colon
def define(name, expr, common=None, evaluator=None):
assert_type(name, "string", "name")
expr = unwrap(expr)
scope = evaluator.get_current_scope()
if common and common.to_boolean().is_true():
scope = evaluator.common.scope()
node = Ident(name.value, expr)
scope.add(node)
return null
def visit_each(self, each):
self.result += 1
expr = utils.unwrap(self.visit(each.expr))
length = len(expr.nodes)
val = Ident(each.value)
key = Ident("__index__")
if each.key:
key = Ident(each.key)
scope = self.get_current_scope()
block = self.get_current_block()
vals = []
self.result -= 1
each.block.scope = False
def visit_body(key, value):
scope.add(value)
scope.add(key)
body = self.visit(each.block.clone())
vals.extend(body.nodes)
# for prop in obj
if length == 1 and "objectnode" == expr.nodes[0].node_name:
obj = expr.nodes[0]
for prop in obj.values:
val.value = String(prop,
lineno=self.parser.lineno,
column=self.parser.column)
key.value = obj.get(prop) # checkme: works?
visit_body(key, val)
else:
for i, n in enumerate(expr.nodes):
val.value = n
key.value = Unit(i)
visit_body(key, val)
self.mixin(vals, block)
if vals and len(vals) > 0:
return vals[len(vals) - 1]
else:
return null
def test_expression_hash():
expression = Expression()
assert expression.hash() == ""
expression = Expression()
expression.append(Ident("foo"))
assert expression.hash() == "foo"
other_expression = Expression()
other_expression.append(Ident("foo"))
other_expression.append(Ident("bar"))
assert other_expression.hash() == "foo::bar"
from stilus.nodes.null import null
from stilus.nodes.boolean import true
from stilus.nodes.boolean import false
expression = Expression()
expression.append(null)
expression.append(true)
expression.append(false)
# in stylus null::true::false is returned; stilus returns the Python types
assert expression.hash() == "None::True::False"
def test_coerce():
first = String("hello")
other = String("there")
assert first.coerce(other) == other
expression = Expression()
expression.append(String("one"))
expression.append(String("two"))
expression.append(String("three"))
assert first.coerce(expression) == String("one two three")
assert first.coerce(null) == String("null")
assert first.coerce(Ident("foobar")) == String("foobar")
def substr(value, start, length=None, evaluator=None):
assert_string(value, "val")
assert_type(start, "unit", "start")
start = int(start.value)
if length:
length = start + int(length.value)
result = value.string[start:length]
if isinstance(value, Ident):
return Ident(result)
else:
return String(result)
def convert(content, prefix=None):
if prefix:
prefix = prefix + "-"
else:
prefix = ""
for key in content:
val = content[key]
name = prefix + key
if isinstance(val, dict):
convert(val, name)
else:
val = coerce(val, raw=False)
if val.node_name == "string":
val = parse_string(val.string)
scope.add(Ident(name_prefix + name, val))
def test_lexer_function_paren_braces_sep_unit():
lexer = Lexer(
"bg()\n"
" background: blue\n"
"\n"
"body {\n"
" bg(); width: 100px\n"
"}\n",
{},
)
tokens = [token for token in lexer]
from stilus.nodes.null import null
assert tokens[0] == Token(
"function", Ident("bg", null), "", lineno=1, column=1
)
assert tokens[1] == Token(")", ")", "", lineno=1, column=4)
assert tokens[9] == Token("{", "{", lineno=4, column=6)
assert tokens[11] == Token(
"function", Ident("bg", null), "", lineno=5, column=3
)
assert tokens[13] == Token(";", None, lineno=5, column=7)
assert tokens[16] == Token("unit", Unit(100.0, "px"), lineno=5, column=16)
assert tokens[18] == Token("}", "}", lineno=6, column=1)
def test_frame_scopes():
# regular block (scope is True) and frame has no parent -> scope == Scope()
block = Block(Ident("hello"), Ident("there"))
frame = Frame(block)
assert frame.scope() == Scope()
assert frame.block == block
assert frame.parent is None
# irregular block (scope is False) frame has no parent...
block = Block(Ident("hello"), Ident("there"), scope=False)
frame = Frame(block)
# ...raises TypeError since no parent
with raises(TypeError):
frame.scope()
assert frame.block == block
assert frame.parent is None
# regular block (scope is True) and frame has a parent -> scope == Scope()
block = Block(Ident("hello"), Ident("there"))
parent = Block(Ident("fizz"), Ident("fuzz"))
frame = Frame(block, parent)
assert frame.scope() == Scope()
assert frame.block == block
assert frame.parent is parent
def slice(values, start, end=None, evaluator=None):
start = int(start.nodes[0].value)
if end and len(end.nodes) > 0:
end = int(end.nodes[0].value)
values = utils.unwrap(values).nodes
if len(values) > 1:
if end:
return utils.coerce(values[start:end], raw=True)
else:
return utils.coerce(values[start:], raw=True)
if end:
result = values[0].string[start:end]
else:
result = values[0].string[start:]
if isinstance(values[0], Ident):
return Ident(result)
else:
return String(result)