Fix off-by-one in TestPagebufferReader2

Fixes dgraph-io#1197
andhe · Jan 27, 2020 · 1bb7749 · 1bb7749
1 parent 3e25d77
commit 1bb7749
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/y/y_test.go b/y/y_test.go
@@ -176,7 +176,7 @@ func TestPagebufferReader2(t *testing.T) {
 	require.Equal(t, n, 10, "length of buffer and length written should be equal")
 	require.NoError(t, err, "unable to write bytes to buffer")
 
-	randOffset := int(rand.Int31n(int32(b.length)))
+	randOffset := int(rand.Int31n(int32(b.length - 1)))
 	randLength := int(rand.Int31n(int32(b.length - randOffset)))
 	reader := b.NewReaderAt(randOffset)
 	// Read randLength bytes.