49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
package source
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import (
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"testing"
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"unicode/utf8"
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)
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func TestLineColOffsetRoundTrip(t *testing.T) {
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src := []byte("package p\nvar имя = \"é\"\r\n\tx\n")
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m := NewManager()
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id := m.Add("a.aes", src)
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for off := 0; off <= len(src); off++ {
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line, col := m.LineCol(id, uint32(off))
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want := off
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for want > 0 && want < len(src) && !utf8.RuneStart(src[want]) {
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want--
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}
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if got := m.Offset(id, line, col); int(got) != want {
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t.Fatalf("offset %d -> %d:%d -> %d, want %d", off, line, col, got, want)
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}
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}
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}
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func TestAddReplacesKeepsID(t *testing.T) {
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m := NewManager()
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a := m.Add("x.aes", []byte("one"))
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b := m.Add("x.aes", []byte("two\nlines"))
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if a != b {
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t.Fatalf("ids differ %d %d", a, b)
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}
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if m.LineCount(a) != 2 || string(m.Source(a)) != "two\nlines" {
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t.Fatal("source was not replaced")
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}
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if m.Path(NoFile) != "" || m.Source(99) != nil {
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t.Fatal("unknown ids must be empty")
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}
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}
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func TestSpanTo(t *testing.T) {
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a := Span{File: 1, Start: 4, End: 6}
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b := Span{File: 1, Start: 1, End: 5}
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if got := a.To(b); got.Start != 1 || got.End != 6 {
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t.Fatalf("join = %+v", got)
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}
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if got := a.To(Span{File: 2}); got != a {
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t.Fatal("different files must not join")
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}
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}
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