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package sourcemap
import (
"bytes"
"strings"
"testing"
)
const testFile = `{"version":3,"file":"min.js","sourceRoot":"/the/root","sources":["one.js","two.js"],"names":["bar","baz","n"],"mappings":"CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOC,IAAID;CCDb,IAAI,IAAM,SAAUE,GAClB,OAAOA"}` + "\n"
func TestReadFrom(t *testing.T) {
m, err := ReadFrom(strings.NewReader(testFile))
if err != nil {
t.Fatal(err)
}
if m.File != "min.js" || m.SourceRoot != "/the/root" || len(m.Sources) != 2 || m.Sources[0] != "one.js" || len(m.Names) != 3 || m.Names[0] != "bar" {
t.Error(m)
}
mappings := m.DecodedMappings()
if len(mappings) != 13 {
t.Error(m)
}
assertMapping := func(got, expected *Mapping) {
if got.GeneratedLine != expected.GeneratedLine || got.GeneratedColumn != expected.GeneratedColumn || got.OriginalFile != expected.OriginalFile || got.OriginalLine != expected.OriginalLine || got.OriginalColumn != expected.OriginalColumn || got.OriginalName != expected.OriginalName {
t.Errorf("expected %v, got %v", expected, got)
}
}
assertMapping(mappings[0], &Mapping{1, 1, "one.js", 1, 1, ""})
assertMapping(mappings[1], &Mapping{1, 5, "one.js", 1, 5, ""})
assertMapping(mappings[2], &Mapping{1, 9, "one.js", 1, 11, ""})
assertMapping(mappings[3], &Mapping{1, 18, "one.js", 1, 21, "bar"})
assertMapping(mappings[4], &Mapping{1, 21, "one.js", 2, 3, ""})
assertMapping(mappings[5], &Mapping{1, 28, "one.js", 2, 10, "baz"})
assertMapping(mappings[6], &Mapping{1, 32, "one.js", 2, 14, "bar"})
assertMapping(mappings[7], &Mapping{2, 1, "two.js", 1, 1, ""})
assertMapping(mappings[8], &Mapping{2, 5, "two.js", 1, 5, ""})
assertMapping(mappings[9], &Mapping{2, 9, "two.js", 1, 11, ""})
assertMapping(mappings[10], &Mapping{2, 18, "two.js", 1, 21, "n"})
assertMapping(mappings[11], &Mapping{2, 21, "two.js", 2, 3, ""})
assertMapping(mappings[12], &Mapping{2, 28, "two.js", 2, 10, "n"})
}
func TestWriteTo(t *testing.T) {
m, err := ReadFrom(strings.NewReader(testFile))
if err != nil {
t.Fatal(err)
}
m.DecodedMappings()
m.Swap(3, 4)
m.Swap(5, 10)
m.Mappings = ""
m.Version = 0
b := bytes.NewBuffer(nil)
if err := m.WriteTo(b); err != nil {
t.Fatal(err)
}
if b.String() != testFile {
t.Error(b.String())
}
}
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