77 lines
1.6 KiB
Go
77 lines
1.6 KiB
Go
package gapstring
|
||
|
||
import (
|
||
"bytes"
|
||
"testing"
|
||
)
|
||
|
||
func assertEqual(name string, a, b interface{}, t *testing.T) {
|
||
if a != b {
|
||
t.Errorf("%s: %#v != %#v", name, a, b)
|
||
}
|
||
}
|
||
|
||
func TestChunk(t *testing.T) {
|
||
var c chunk
|
||
|
||
c = chunk{gap: 2}
|
||
assertEqual("gap chunk", c.length(), 2, t)
|
||
|
||
c = chunk{data: []byte("moo")}
|
||
assertEqual("byte chunk", c.length(), 3, t)
|
||
assertEqual("byte slice", string(c.slice(1,3).data), "oo", t)
|
||
}
|
||
|
||
func TestGapString(t *testing.T) {
|
||
g := GapString{}
|
||
|
||
if 0 != bytes.Compare(g.Bytes(), []byte{}) {
|
||
t.Errorf("%#v.Bytes() != []byte{}", g)
|
||
}
|
||
if g.Length() != 0 {
|
||
t.Errorf("len(%#v) != 0", g)
|
||
}
|
||
|
||
g = g.Append(g)
|
||
if g.Length() != 0 {
|
||
t.Errorf("Appending two emtpy gapstrings")
|
||
}
|
||
|
||
g = g.AppendString("moo")
|
||
if 0 != bytes.Compare(g.Bytes(), []byte("moo")) {
|
||
t.Errorf("Simple string")
|
||
}
|
||
|
||
g = g.AppendString("bar")
|
||
if g.String("") != "moobar" {
|
||
t.Errorf("Append")
|
||
}
|
||
if g.Missing() != 0 {
|
||
t.Errorf("Missing when there shouldn't be any missing")
|
||
}
|
||
|
||
g = g.AppendGap(8)
|
||
if g.Length() != 3+3+8 {
|
||
t.Errorf("Length after gap append")
|
||
}
|
||
if g.Missing() != 8 {
|
||
t.Errorf("Gap miscounted")
|
||
}
|
||
|
||
g = g.AppendString("baz")
|
||
if g.String("") != "moobarbaz" {
|
||
t.Errorf("String conversion with empty string")
|
||
}
|
||
if g.String("DROP") != "moobarOPDROPDRbaz" {
|
||
t.Errorf("String conversion with fill")
|
||
}
|
||
|
||
assertEqual("slice", g.Slice(2, 5).String(""), "oba", t)
|
||
|
||
hexdump :=
|
||
"00000000 6d 6f 6f 62 61 72 -- -- -- -- -- -- -- -- 62 61 moobar<61><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ba\n" +
|
||
"00000010 7a z\n" +
|
||
"00000011\n"
|
||
assertEqual("hexdump", g.Hexdump(), hexdump, t)
|
||
}
|