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bytes.SplitAfter and strings.SplitAfter

Browse source 
most common usage is:

	lines := strings.SplitAfter(text, "\n", 0)

R=r
http://go/go-review/1018042
This commit is contained in:
Russ Cox 2009-11-04 15:19:30 -08:00
parent 3de3af512d
commit 5d436b9def
4 changed files with 98 additions and 10 deletions
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31
src/pkg/bytes/bytes_test.go
View file

@ -141,6 +141,37 @@ func TestSplit(t *testing.T) {
}
}
var splitaftertests = []SplitTest{
SplitTest{abcd, "a", 0, []string{"a", "bcd"}},
SplitTest{abcd, "z", 0, []string{"abcd"}},
SplitTest{abcd, "", 0, []string{"a", "b", "c", "d"}},
SplitTest{commas, ",", 0, []string{"1,", "2,", "3,", "4"}},
SplitTest{dots, "...", 0, []string{"1...", ".2...", ".3...", ".4"}},
SplitTest{faces, "☹", 0, []string{"☺☻☹", ""}},
SplitTest{faces, "~", 0, []string{faces}},
SplitTest{faces, "", 0, []string{"☺", "☻", "☹"}},
SplitTest{"1 2 3 4", " ", 3, []string{"1 ", "2 ", "3 4"}},
SplitTest{"1 2 3", " ", 3, []string{"1 ", "2 ", "3"}},
SplitTest{"1 2", " ", 3, []string{"1 ", "2"}},
SplitTest{"123", "", 2, []string{"1", "23"}},
SplitTest{"123", "", 17, []string{"1", "2", "3"}},
}
func TestSplitAfter(t *testing.T) {
for _, tt := range splitaftertests {
a := SplitAfter(strings.Bytes(tt.s), strings.Bytes(tt.sep), tt.n);
result := arrayOfString(a);
if !eq(result, tt.a) {
t.Errorf(`Split(%q, %q, %d) = %v; want %v`, tt.s, tt.sep, tt.n, result, tt.a);
continue;
}
s := Join(a, nil);
if string(s) != tt.s {
t.Errorf(`Join(Split(%q, %q, %d), %q) = %q`, tt.s, tt.sep, tt.n, tt.sep, s);
}
}
}
type CopyTest struct {
a string;
b string;