func TestSelector_deep_nesting(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `a {
c, d, e {
f, g, h {
m, n, o {
color: blue;
}
}
}
}`
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `a c f m, a c f n, a c f o, a c g m, a c g n, a c g o, a c h m, a c h n, a c h o, a d f m, a d f n, a d f o, a d g m, a d g n, a d g o, a d h m, a d h n, a d h o, a e f m, a e f n, a e f o, a e g m, a e g n, a e g o, a e h m, a e h n, a e h o {
color: blue; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func TestDirective_each_paran(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `div {
@each $i in (1 2 3 4 5) {
i: $i;
}
}
`
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `div {
i: 1;
i: 2;
i: 3;
i: 4;
i: 5; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func TestDecl_if(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `$x: 1 2;
@if type-of(nth($x, 2)) == number {
div {
background: gray;
}
}
@else if type-of(nth($x, 2)) == string {
div {
background: blue;
}
}
@else {
div {
background: green;
}
}
`
ctx.SetMode(parser.Trace)
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `div {
background: gray; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func TestDecl_func_if(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `$x: true;
@function foobar() {
@if $x {
$x: false !global;
@return foo;
}
}
div {
content: foobar();
}
`
ctx.SetMode(parser.Trace)
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `div {
content: foo; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func TestSelector_selector_interp(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `$x: oo, ba;
$y: az, hu;
f#{$x}r {
p: 1;
b#{$y}x {
q: 2;
mumble#{length($x) + length($y)} {
r: 3;
}
}
}
`
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `foo, bar {
p: 1; }
foo baz, foo hux, bar baz, bar hux {
q: 2; }
foo baz mumble4, foo hux mumble4, bar baz mumble4, bar hux mumble4 {
r: 3; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func testString(t *testing.T, in string, mode Mode) (*ast.File, *token.FileSet) {
fset := token.NewFileSet()
f, err := ParseFile(fset, "testfile", in, mode)
if err != nil {
t.Fatal(err)
}
return f, fset
}
func TestUnitMath(t *testing.T) {
const src = `
$a: 3px + 3px;
div {
width: $a;
}
`
f, err := ParseFile(token.NewFileSet(), "", src, 0)
if err != nil {
t.Fatal(err)
}
objects := map[string]ast.ObjKind{
"$color": ast.Var,
"$list": ast.Var,
}
ast.Inspect(f, func(n ast.Node) bool {
if spec, ok := n.(*ast.RuleSpec); ok {
ast.Print(token.NewFileSet(), spec)
}
return true
if ident, ok := n.(*ast.Ident); ok {
return true
obj := ident.Obj
if obj == nil {
if objects[ident.Name] != ast.Bad {
t.Errorf("no object for %s", ident.Name)
}
return true
}
if obj.Name != ident.Name {
t.Errorf("names don't match: obj.Name = %s, ident.Name = %s", obj.Name, ident.Name)
}
kind := objects[ident.Name]
if obj.Kind != kind {
t.Errorf("%s: obj.Kind = %s; want %s", ident.Name, obj.Kind, kind)
}
}
return true
})
}
func TestImports(t *testing.T) {
for path, isValid := range imports {
src := fmt.Sprintf("@import %s;", path)
_, err := ParseFile(token.NewFileSet(), "", src, 0) // Trace
switch {
case err != nil && isValid:
t.Errorf("ParseFile(%s): got %v; expected no error", src, err)
case err == nil && !isValid:
t.Errorf("ParseFile(%s): got no error; expected one", src)
}
}
}
func runParse(t *testing.T, in string, e string) {
ctx := NewContext()
// ctx.SetMode(parser.Trace)
ctx.fset = token.NewFileSet()
bout, err := ctx.run("", in)
if err != nil {
t.Fatal(err)
}
out := string(bout)
if e != out {
t.Errorf("got:\n%q\nwanted:\n%q", out, e)
}
}
func (ctx *Context) run(path string, src interface{}) ([]byte, error) {
ctx.fset = token.NewFileSet()
// ctx.mode = parser.Trace
pf, err := parser.ParseFile(ctx.fset, path, src, ctx.mode)
if err != nil {
return nil, err
}
ast.Walk(ctx, pf)
lr, _ := utf8.DecodeLastRune(ctx.buf.Bytes())
_ = lr
if ctx.buf.Len() > 0 && lr != '\n' {
ctx.out("\n")
}
// ctx.printSels(pf.Decls)
return ctx.buf.Bytes(), nil
}
func TestSelector_combinators(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `a + b ~ c { color: red; }
`
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `a + b ~ c {
color: red; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func TestBinary_math(t *testing.T) {
const src = `
$a: inspect(1 + 3);
$b: inspect(3/1);
$c: inspect(1/2 + 1/2);
$d: inspect(2*2);
$d: inspect(1*1/2);
$e: inspect(1/2*1/2);
$f: inspect(2*2/2*2);
//$o: inspect(3px + 3px + 3px);
`
f, err := ParseFile(token.NewFileSet(), "", src, 0|Trace)
if err != nil {
t.Fatal(err)
}
lits := []string{
"4",
"3",
"1",
"4",
"0.5",
"0.25",
"4",
}
var pos int
ast.Inspect(f, func(n ast.Node) bool {
if call, ok := n.(*ast.CallExpr); ok {
// ident := call.Fun.(*ast.Ident)
lit := call.Resolved.(*ast.BasicLit)
val := lits[pos]
pos++
if val != lit.Value {
t.Errorf("useful ident here got: %s wanted %s", lit.Value, val)
}
}
return true
})
}
func TestSelector_many_nests(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `a, b {
c, d { color: red; }
}
`
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `a c, a d, b c, b d {
color: red; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func TestInterp(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `div {
hello: #{123+321};
}
`
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `div {
hello: 444; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func register(s string, ch builtin.CallFunc, h builtin.CallHandle) {
fset := token.NewFileSet()
pf, err := ParseFile(fset, "", s, FuncOnly)
if err != nil {
if !strings.HasSuffix(err.Error(), "expected ';', found 'EOF'") {
log.Fatal(err)
}
}
d := &desc{c: call{
ch: ch,
handle: h,
}}
ast.Walk(d, pf.Decls[0])
if d.err != nil {
log.Fatal("failed to parse func description", d.err)
}
if _, ok := builtins[d.c.name]; ok {
log.Println("already registered", d.c.name)
}
builtins[d.c.name] = d.c
}
func TestSelector_comboampersand(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `div ~ b {
& + & { color: red; }
}
`
out, err := ctx.runString("", input)
if err != nil {
t.Fatal("compilation fail", err)
}
e := `div ~ b + div ~ b {
color: red; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func TestSelector_singleampersand(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `div {
& { color: red; }
}
`
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `div {
color: red; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func TestSelector_nesting_child_group(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `a {
b, c { color: red; }
}
`
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `a b, a c {
color: red; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func TestSpec_files(t *testing.T) {
inputs, err := filepath.Glob("../sass-spec/spec/basic/*/input.scss")
if err != nil {
t.Fatal(err)
}
mode := DeclarationErrors
mode = Trace | ParseComments
var name string
for _, name = range inputs {
if strings.Contains(name, "25_") && testing.Short() {
// This is the last test we currently parse properly
return
}
if !strings.Contains(name, "29_") {
continue
}
if strings.Contains(name, "06_") {
continue
}
if strings.Contains(name, "14_") {
continue
}
// These are f****d things in Sass like lists
if strings.Contains(name, "15_") {
continue
}
// namespaces are wtf
if strings.Contains(name, "24_") {
continue
}
fmt.Println("Parsing", name)
_, err := ParseFile(token.NewFileSet(), name, nil, mode)
if err != nil {
t.Fatalf("ParseFile(%s): %v", name, err)
}
fmt.Println("Parsed", name)
}
}
func TestSelector_inplace_nesting(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `hey, ho {
foo &.goo {
color: blue;
}
}
`
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `foo hey.goo, foo ho.goo {
color: blue; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func TestSelector_nesting_implicit_unary(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `a {
> e {
color: blue;
}
}
`
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `a > e {
color: blue; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func TestInterp_copy(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `div {
@each $i in 1 2 {
hello: text#{$i};
}
}
`
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `div {
hello: text1;
hello: text2; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func TestDirective_each(t *testing.T) {
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `div {
@each $i in a b c {
i: $i;
}
}
`
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `div {
i: a;
i: b;
i: c; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func TestSelector_nesting_unary(t *testing.T) {
// This is bizarre, may never support this odd syntax
ctx := NewContext()
ctx.fset = token.NewFileSet()
input := `a {
& > e {
color: blue;
}
}
`
out, err := ctx.runString("", input)
if err != nil {
t.Fatal(err)
}
e := `a > e {
color: blue; }
`
if e != out {
t.Fatalf("got:\n%s\nwanted:\n%s", out, e)
}
}
func checkErrors(t *testing.T, filename string, input interface{}) {
src, err := readSource(filename, input)
if err != nil {
t.Error(err)
return
}
fset := token.NewFileSet()
mode := DeclarationErrors | AllErrors
_, err = ParseFile(fset, filename, src, mode)
found, ok := err.(scanner.ErrorList)
if err != nil && !ok {
t.Error(err)
return
}
found.RemoveMultiples()
// we are expecting the following errors
// (collect these after parsing a file so that it is found in the file set)
expected := expectedErrors(t, fset, filename, src)
// verify errors returned by the parser
compareErrors(t, fset, expected, found)
}
func TestObjects(t *testing.T) {
const src = `
$color: red;
$list: 1 2 $color;
`
f, err := ParseFile(token.NewFileSet(), "", src, 0)
if err != nil {
t.Fatal(err)
}
objects := map[string]ast.ObjKind{
"$color": ast.Var,
"$list": ast.Var,
}
ast.Inspect(f, func(n ast.Node) bool {
if ident, ok := n.(*ast.Ident); ok {
obj := ident.Obj
if obj == nil {
if objects[ident.Name] != ast.Bad {
t.Errorf("no object for %s", ident.Name)
}
return true
}
if obj.Name != ident.Name {
t.Errorf("names don't match: obj.Name = %s, ident.Name = %s", obj.Name, ident.Name)
}
kind := objects[ident.Name]
if obj.Kind != kind {
t.Errorf("%s: obj.Kind = %s; want %s", ident.Name, obj.Kind, kind)
}
}
return true
})
}
{token.MIXIN, "@mixin"},*/
// {token.SELECTOR, "foo($a,$b)"},
// {token.COLOR, "rgb(10,10,10)"},
}
var source = func(tokens []elt) []byte {
var src []byte
for _, t := range tokens {
src = append(src, t.lit...)
src = append(src, whitespace...)
}
return src
}
var fset = token.NewFileSet()
func newlineCount(s string) int {
n := 0
for i := 0; i < len(s); i++ {
if s[i] == '\n' {
n++
}
}
return n
}
func checkPos(t *testing.T, lit string, p token.Pos, expected token.Position) {
pos := fset.Position(p)
if pos.Filename != expected.Filename {
t.Errorf("bad filename for %q: got %s, expected %s", lit, pos.Filename, expected.Filename)
// ParseExpr is a convenience function for obtaining the AST of an expression x.
// The position information recorded in the AST is undefined. The filename used
// in error messages is the empty string.
//
func ParseExpr(x string) (ast.Expr, error) {
return ParseExprFrom(token.NewFileSet(), "", []byte(x), 0)
}
func printEach(ctx *Context, n ast.Node) {
// surprise, not media but behavior is same!
ctx.hiddenBlock = true
fmt.Println("each...")
ast.Print(token.NewFileSet(), n)
}