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vis: adding a pure golang Vis()

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The current Vis() and Unvis() are using the C implementation from
MTREE(8).

But that means that cgo is used, which is not always desired.

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
This commit is contained in:
Vincent Batts 2016-08-25 14:17:08 -04:00
parent e42c679e89
commit 08b1000418
Signed by: vbatts
GPG key ID: 10937E57733F1362
19 changed files with 580 additions and 61 deletions
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20
vis_test.go
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@ -2,7 +2,7 @@ package mtree
import "testing"
func TestVis(t *testing.T) {
func TestVisBasic(t *testing.T) {
testset := []struct {
Src, Dest string
}{
@ -17,33 +17,23 @@ func TestVis(t *testing.T) {
}
for i := range testset {
got, err := Vis(testset[i].Src)
got, err := Vis(testset[i].Src, DefaultVisFlags)
if err != nil {
t.Errorf("working with %q: %s", testset[i].Src, err)
}
if got != testset[i].Dest {
t.Errorf("expected %#v; got %#v", testset[i].Dest, got)
t.Errorf("%q: expected %#v; got %#v", testset[i].Src, testset[i].Dest, got)
continue
}
got, err = Unvis(got)
if err != nil {
t.Errorf("working with %q: %s", testset[i].Src, err)
t.Errorf("working with %q: %s: %q", testset[i].Src, err, got)
continue
}
if got != testset[i].Src {
t.Errorf("expected %#v; got %#v", testset[i].Src, got)
t.Errorf("%q: expected %#v; got %#v", testset[i].Dest, testset[i].Src, got)
continue
}
}
}
// The resulting string of Vis output could potentially be four times longer than
// the original. Vis must handle this possibility.
func TestVisLength(t *testing.T) {
testString := "All work and no play makes Jack a dull boy\n"
for i := 0; i < 20; i++ {
Vis(testString)
testString = testString + testString
}
}