encoding/json: fix test failure

$ go test -cpu=1,1,1,1,1,1,1,1,1 encoding/json
--- FAIL: TestIndentBig (0.00 seconds)
        scanner_test.go:131: Indent(jsonBig) did not get bigger
On 4-th run initBig generates an empty array.

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/49930051

diff --git a/src/pkg/encoding/json/scanner_test.go b/src/pkg/encoding/json/scanner_test.go
index 90e45ff0369081d2f97618cb228c21bcefdd797e..78803429029357322a253ec135c4da90e0170300 100644 (file)
--- a/src/pkg/encoding/json/scanner_test.go
+++ b/src/pkg/encoding/json/scanner_test.go
@@ -239,23 +239,16 @@ func trim(b []byte) []byte {
 
 var jsonBig []byte
 
-const (
-       big   = 10000
-       small = 100
-)
-
 func initBig() {
-       n := big
+       n := 10000
        if testing.Short() {
-               n = small
+               n = 100
        }
-       if len(jsonBig) != n {
-               b, err := Marshal(genValue(n))
-               if err != nil {
-                       panic(err)
-               }
-               jsonBig = b
+       b, err := Marshal(genValue(n))
+       if err != nil {
+               panic(err)
        }
+       jsonBig = b
 }
 
 func genValue(n int) interface{} {
@@ -296,6 +289,9 @@ func genArray(n int) []interface{} {
        if f > n {
                f = n
        }
+       if f < 1 {
+               f = 1
+       }
        x := make([]interface{}, f)
        for i := range x {
                x[i] = genValue(((i+1)*n)/f - (i*n)/f)