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package libsass
import (
"bytes"
"image/color"
"reflect"
"testing"
"time"
"github.com/wellington/go-libsass/libs"
)
func TestFunc_simpletypes(t *testing.T) {
in := bytes.NewBufferString(`div {
background: foo(null, 3px, asdf, false);
}`)
//var out bytes.Buffer
ctx := newContext()
// Communication channel for the C Sass callback function
ch := make(chan []interface{}, 1)
ctx.Funcs.Add(Func{
Sign: "foo($null, $num, $str, $bool)",
Fn: Handler(func(v interface{}, req SassValue, res *SassValue) error {
var n interface{}
var num libs.SassNumber
var s string
var b bool
var intf = []interface{}{n, num, s, b}
err := Unmarshal(req, &intf)
if err != nil {
t.Fatal(err)
}
// Send the interface fn arguments to the ch channel
ch <- intf
return nil
}),
Ctx: &ctx,
})
var out bytes.Buffer
err := ctx.compile(&out, in)
if err != nil {
t.Error(err)
}
e := []interface{}{
"<nil>",
libs.SassNumber{Value: 3.0, Unit: "px"},
"asdf",
false,
}
var args []interface{}
select {
case <-time.After(10 * time.Millisecond):
t.Fatal("timeout")
case args = <-ch:
}
if !reflect.DeepEqual(e, args) {
t.Errorf("wanted:\n% #v\ngot:\n% #v", e, args)
}
}
func TestFunc_colortype(t *testing.T) {
in := bytes.NewBufferString(`div {
background: foo(#005500);
}`)
//var out bytes.Buffer
ctx := newContext()
// Communication channel for the C Sass callback function
ch := make(chan []interface{}, 1)
ctx.Funcs.Add(Func{
Sign: "foo($color)",
Fn: func(v interface{}, usv libs.UnionSassValue, rsv *libs.UnionSassValue) error {
// Send the interface fn arguments to the ch channel
var infs = []interface{}{color.RGBA{}}
err := Unmarshal(SassValue{value: usv}, &infs)
if err != nil {
t.Fatal(err)
}
ch <- infs
res, _ := Marshal(false)
*rsv = res.Val()
return nil
},
Ctx: &ctx,
})
var out bytes.Buffer
err := ctx.compile(&out, in)
if err != nil {
t.Error(err)
}
e := []interface{}{
color.RGBA{R: 0x0, G: 0x55, B: 0x0, A: 0x1},
}
var args []interface{}
select {
case <-time.After(100 * time.Millisecond):
t.Fatal("timeout")
case args = <-ch:
}
if !reflect.DeepEqual(e, args) {
t.Errorf("wanted:\n% #v\ngot:\n% #v", e, args)
}
}
func TestFunc_complextypes(t *testing.T) {
in := bytes.NewBufferString(`div {
background: foo((a,b,1mm,#003300));
}`)
var out bytes.Buffer
ctx := newContext()
ch := make(chan interface{}, 1)
ctx.Funcs.Add(Func{
Sign: "foo($list)",
Fn: func(v interface{}, usv libs.UnionSassValue, rsv *libs.UnionSassValue) error {
var sv interface{}
Unmarshal(SassValue{value: usv}, &sv)
ch <- sv
res, _ := Marshal(false)
*rsv = res.Val()
return nil
},
Ctx: &ctx,
})
err := ctx.compile(&out, in)
if err != nil {
t.Error(err)
}
e := []interface{}{
"a",
"b",
libs.SassNumber{Value: 1, Unit: "mm"},
color.RGBA{R: 0x0, G: 0x33, B: 0x0, A: 0x1},
}
var args interface{}
select {
case <-time.After(100 * time.Millisecond):
t.Fatal("timeout")
case args = <-ch:
}
if !reflect.DeepEqual(e, args) {
t.Errorf("wanted:\n%#v\ngot:\n% #v", e, args)
}
}
func TestFunc_customarity(t *testing.T) {
in := bytes.NewBufferString(`div {
color: red(blue);
background: foo(1pt, 2cm);
}`)
var out bytes.Buffer
ctx := newContext()
ctx.Funcs.Add(Func{
Sign: "foo()",
Fn: TestCallback,
Ctx: &ctx,
})
err := ctx.compile(&out, in)
if err == nil {
t.Error("No error thrown for incorrect arity")
}
e := "wrong number of arguments (2 for 0) for `foo'"
if e != ctx.err.Message {
t.Errorf("wanted:\n%s\ngot:\n%s\n", e, ctx.err.Message)
}
e = `Error > stdin:3
wrong number of arguments (2 for 0) for ` + "`" + `foo'
div {
color: red(blue);
background: foo(1pt, 2cm);
}
`
if e != err.Error() {
t.Errorf("wanted:\n%s\ngot:\n%s\n", e, err)
}
}
|
