update vendor/ dir to latest w/o heroku, moby

had to lock a lot of things in place

vendor/github.com/json-iterator/go/jsoniter_io_test.go

@@ -0,0 +1,65 @@
+package jsoniter
+
+import (
+	"bytes"
+	"github.com/stretchr/testify/require"
+	"io"
+	"testing"
+)
+
+func Test_read_by_one(t *testing.T) {
+	iter := Parse(ConfigDefault, bytes.NewBufferString("abc"), 1)
+	b := iter.readByte()
+	if iter.Error != nil {
+		t.Fatal(iter.Error)
+	}
+	if b != 'a' {
+		t.Fatal(b)
+	}
+	iter.unreadByte()
+	if iter.Error != nil {
+		t.Fatal(iter.Error)
+	}
+	b = iter.readByte()
+	if iter.Error != nil {
+		t.Fatal(iter.Error)
+	}
+	if b != 'a' {
+		t.Fatal(b)
+	}
+}
+
+func Test_read_by_two(t *testing.T) {
+	should := require.New(t)
+	iter := Parse(ConfigDefault, bytes.NewBufferString("abc"), 2)
+	b := iter.readByte()
+	should.Nil(iter.Error)
+	should.Equal(byte('a'), b)
+	b = iter.readByte()
+	should.Nil(iter.Error)
+	should.Equal(byte('b'), b)
+	iter.unreadByte()
+	should.Nil(iter.Error)
+	iter.unreadByte()
+	should.Nil(iter.Error)
+	b = iter.readByte()
+	should.Nil(iter.Error)
+	should.Equal(byte('a'), b)
+}
+
+func Test_read_until_eof(t *testing.T) {
+	iter := Parse(ConfigDefault, bytes.NewBufferString("abc"), 2)
+	iter.readByte()
+	iter.readByte()
+	b := iter.readByte()
+	if iter.Error != nil {
+		t.Fatal(iter.Error)
+	}
+	if b != 'c' {
+		t.Fatal(b)
+	}
+	iter.readByte()
+	if iter.Error != io.EOF {
+		t.Fatal(iter.Error)
+	}
+}