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Change strings.Split, bytes.Split to take a maximum substring count argument.

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R=rsc
APPROVED=r
DELTA=131  (39 added, 10 deleted, 82 changed)
OCL=30669
CL=30723
This commit is contained in:
David Symonds 2009-06-24 19:02:29 -07:00
parent 466dd8da4e
commit 30533d607a
9 changed files with 120 additions and 88 deletions
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45
src/pkg/strings/strings_test.go
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@ -83,23 +83,24 @@ func TestLastIndex(t *testing.T) {
type ExplodeTest struct {
s string;
n int;
a []string;
}
var explodetests = []ExplodeTest {
ExplodeTest{ abcd, []string{"a", "b", "c", "d"} },
ExplodeTest{ faces, []string{"☺", "☻", "☹" } },
ExplodeTest{ abcd, 4, []string{"a", "b", "c", "d"} },
ExplodeTest{ faces, 3, []string{"☺", "☻", "☹"} },
ExplodeTest{ abcd, 2, []string{"a", "bcd"} },
}
func TestExplode(t *testing.T) {
for i := 0; i < len(explodetests); i++ {
tt := explodetests[i];
a := Explode(tt.s);
for _, tt := range explodetests {
a := explode(tt.s, tt.n);
if !eq(a, tt.a) {
t.Errorf("Explode(%q) = %v; want %v", tt.s, a, tt.a);
t.Errorf("explode(%q, %d) = %v; want %v", tt.s, tt.n, a, tt.a);
continue;
}
s := Join(a, "");
if s != tt.s {
t.Errorf(`Join(Explode(%q), "") = %q`, tt.s, s);
t.Errorf(`Join(explode(%q, %d), "") = %q`, tt.s, tt.n, s);
}
}
}
@ -107,29 +108,33 @@ func TestExplode(t *testing.T) {
type SplitTest struct {
s string;
sep string;
n int;
a []string;
}
var splittests = []SplitTest {
SplitTest{ abcd, "a", []string{"", "bcd"} },
SplitTest{ abcd, "z", []string{"abcd"} },
SplitTest{ abcd, "", []string{"a", "b", "c", "d"} },
SplitTest{ commas, ",", []string{"1", "2", "3", "4"} },
SplitTest{ dots, "...", []string{"1", ".2", ".3", ".4"} },
SplitTest{ faces, "☹", []string{"☺☻", ""} },
SplitTest{ faces, "~", []string{faces} },
SplitTest{ faces, "", []string{"☺", "☻", "☹"} },
SplitTest{ abcd, "a", 0, []string{"", "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, []string{"1", "2"} },
SplitTest{ "123", "", 2, []string{"1", "23"} },
SplitTest{ "123", "", 17, []string{"1", "2", "3"} },
}
func TestSplit(t *testing.T) {
for i := 0; i < len(splittests); i++ {
tt := splittests[i];
a := Split(tt.s, tt.sep);
for _, tt := range splittests {
a := Split(tt.s, tt.sep, tt.n);
if !eq(a, tt.a) {
t.Errorf("Split(%q, %q) = %v; want %v", tt.s, tt.sep, a, tt.a);
t.Errorf("Split(%q, %q, %d) = %v; want %v", tt.s, tt.sep, tt.n, a, tt.a);
continue;
}
s := Join(a, tt.sep);
if s != tt.s {
t.Errorf("Join(Split(%q, %q), %q) = %q", tt.s, tt.sep, tt.sep, s);
t.Errorf("Join(Split(%q, %q, %d), %q) = %q", tt.s, tt.sep, tt.n, tt.sep, s);
}
}
}