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Nullify --nth option when it's irrelevant

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This commit is contained in:
Junegunn Choi
2015-01-23 06:26:00 +09:00
parent 8bead4ae34
commit c35d98dc42
3 changed files with 62 additions and 11 deletions
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40
src/options_test.go
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@@ -21,17 +21,47 @@ func TestSplitNth(t *testing.T) {
}
}
{
ranges := splitNth("..3,1..,2..3,4..-1,-3..-2,..,2,-2")
if len(ranges) != 8 ||
ranges := splitNth("..3,1..,2..3,4..-1,-3..-2,..,2,-2,2..-2,1..-1")
if len(ranges) != 10 ||
ranges[0].begin != rangeEllipsis || ranges[0].end != 3 ||
ranges[1].begin != 1 || ranges[1].end != rangeEllipsis ||
ranges[1].begin != rangeEllipsis || ranges[1].end != rangeEllipsis ||
ranges[2].begin != 2 || ranges[2].end != 3 ||
ranges[3].begin != 4 || ranges[3].end != -1 ||
ranges[3].begin != 4 || ranges[3].end != rangeEllipsis ||
ranges[4].begin != -3 || ranges[4].end != -2 ||
ranges[5].begin != rangeEllipsis || ranges[5].end != rangeEllipsis ||
ranges[6].begin != 2 || ranges[6].end != 2 ||
ranges[7].begin != -2 || ranges[7].end != -2 {
ranges[7].begin != -2 || ranges[7].end != -2 ||
ranges[8].begin != 2 || ranges[8].end != -2 ||
ranges[9].begin != rangeEllipsis || ranges[9].end != rangeEllipsis {
t.Errorf("%s", ranges)
}
}
}
func TestIrrelevantNth(t *testing.T) {
{
opts := defaultOptions()
words := []string{"--nth", "..", "-x"}
parseOptions(opts, words)
if len(opts.Nth) != 0 {
t.Errorf("nth should be empty: %s", opts.Nth)
}
}
for _, words := range [][]string{[]string{"--nth", "..,3"}, []string{"--nth", "3,1.."}, []string{"--nth", "..-1,1"}} {
{
opts := defaultOptions()
parseOptions(opts, words)
if len(opts.Nth) != 0 {
t.Errorf("nth should be empty: %s", opts.Nth)
}
}
{
opts := defaultOptions()
words = append(words, "-x")
parseOptions(opts, words)
if len(opts.Nth) != 2 {
t.Errorf("nth should not be empty: %s", opts.Nth)
}
}
}
}