Update SQL Server driver library

vendor/github.com/denisenkom/go-mssqldb/batch/batch_test.go

@@ -0,0 +1,120 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package batch
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestBatchSplit(t *testing.T) {
+	type testItem struct {
+		Sql    string
+		Expect []string
+	}
+
+	list := []testItem{
+		testItem{
+			Sql: `use DB
+go
+select 1
+go
+select 2
+`,
+			Expect: []string{`use DB
+`, `
+select 1
+`, `
+select 2
+`,
+			},
+		},
+		testItem{
+			Sql: `go
+use DB go
+`,
+			Expect: []string{`
+use DB go
+`,
+			},
+		},
+		testItem{
+			Sql: `select 'It''s go time'
+go
+select top 1 1`,
+			Expect: []string{`select 'It''s go time'
+`, `
+select top 1 1`,
+			},
+		},
+		testItem{
+			Sql: `select 1 /* go */
+go
+select top 1 1`,
+			Expect: []string{`select 1 /* go */
+`, `
+select top 1 1`,
+			},
+		},
+		testItem{
+			Sql: `select 1 -- go
+go
+select top 1 1`,
+			Expect: []string{`select 1 -- go
+`, `
+select top 1 1`,
+			},
+		},
+		testItem{Sql: `"0'"`, Expect: []string{`"0'"`}},
+		testItem{Sql: "0'", Expect: []string{"0'"}},
+		testItem{Sql: "--", Expect: []string{"--"}},
+		testItem{Sql: "GO", Expect: nil},
+		testItem{Sql: "/*", Expect: []string{"/*"}},
+		testItem{Sql: "gO\x01\x00O550655490663051008\n", Expect: []string{"\n"}},
+		testItem{Sql: "select 1;\nGO  2\nselect 2;", Expect: []string{"select 1;\n", "select 1;\n", "\nselect 2;"}},
+		testItem{Sql: "select 'hi\\\n-hello';", Expect: []string{"select 'hi-hello';"}},
+		testItem{Sql: "select 'hi\\\r\n-hello';", Expect: []string{"select 'hi-hello';"}},
+		testItem{Sql: "select 'hi\\\r-hello';", Expect: []string{"select 'hi-hello';"}},
+		testItem{Sql: "select 'hi\\\n\nhello';", Expect: []string{"select 'hi\nhello';"}},
+	}
+
+	index := -1
+
+	for i := range list {
+		if index >= 0 && index != i {
+			continue
+		}
+		sqltext := list[i].Sql
+		t.Run(fmt.Sprintf("index-%d", i), func(t *testing.T) {
+			ss := Split(sqltext, "go")
+			if len(ss) != len(list[i].Expect) {
+				t.Errorf("Test Item index %d; expect %d items, got %d %q", i, len(list[i].Expect), len(ss), ss)
+				return
+			}
+			for j := 0; j < len(ss); j++ {
+				if ss[j] != list[i].Expect[j] {
+					t.Errorf("Test Item index %d, batch index %d; expect <%s>, got <%s>", i, j, list[i].Expect[j], ss[j])
+				}
+			}
+		})
+	}
+}
+
+func TestHasPrefixFold(t *testing.T) {
+	list := []struct {
+		s, pre string
+		is     bool
+	}{
+		{"h", "H", true},
+		{"h", "K", false},
+		{"go 5\n", "go", true},
+	}
+	for _, item := range list {
+		is := hasPrefixFold(item.s, item.pre)
+		if is != item.is {
+			t.Errorf("want (%q, %q)=%t got %t", item.s, item.pre, item.is, is)
+		}
+	}
+}