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Diffstat (limited to 'src/encoding/base32/base32_test.go')
| -rw-r--r-- | src/encoding/base32/base32_test.go | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/encoding/base32/base32_test.go b/src/encoding/base32/base32_test.go index 0132744507..33638adeac 100644 --- a/src/encoding/base32/base32_test.go +++ b/src/encoding/base32/base32_test.go @@ -110,6 +110,13 @@ func TestDecode(t *testing.T) { dst, err := StdEncoding.AppendDecode([]byte("lead"), []byte(p.encoded)) testEqual(t, "AppendDecode(%q) = error %v, want %v", p.encoded, err, error(nil)) testEqual(t, `AppendDecode("lead", %q) = %q, want %q`, p.encoded, string(dst), "lead"+p.decoded) + + dst2, err := StdEncoding.AppendDecode(dst[:0:len(p.decoded)], []byte(p.encoded)) + testEqual(t, "AppendDecode(%q) = error %v, want %v", p.encoded, err, error(nil)) + testEqual(t, `AppendDecode("", %q) = %q, want %q`, p.encoded, string(dst2), p.decoded) + if len(dst) > 0 && len(dst2) > 0 && &dst[0] != &dst2[0] { + t.Errorf("unexpected capacity growth: got %d, want %d", cap(dst2), cap(dst)) + } } } |