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migu_test.go
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migu_test.go
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package migu_test
import (
"bytes"
"database/sql"
"fmt"
"reflect"
"sort"
"testing"
_ "github.com/go-sql-driver/mysql"
"github.com/naoina/migu"
)
var db *sql.DB
func init() {
var err error
db, err = sql.Open("mysql", "travis@/migu_test")
if err != nil {
panic(err)
}
}
func before(t *testing.T) {
if _, err := db.Exec(`DROP TABLE IF EXISTS user`); err != nil {
t.Fatal(err)
}
}
func TestDiffWithSrc(t *testing.T) {
before(t)
types := map[string]string{
"int": "INT NOT NULL",
"int8": "TINYINT NOT NULL",
"int16": "SMALLINT NOT NULL",
"int32": "INT NOT NULL",
"int64": "BIGINT NOT NULL",
"*int": "INT",
"*int8": "TINYINT",
"*int16": "SMALLINT",
"*int32": "INT",
"*int64": "BIGINT",
"uint": "INT UNSIGNED NOT NULL",
"uint8": "TINYINT UNSIGNED NOT NULL",
"uint16": "SMALLINT UNSIGNED NOT NULL",
"uint32": "INT UNSIGNED NOT NULL",
"uint64": "BIGINT UNSIGNED NOT NULL",
"*uint": "INT UNSIGNED",
"*uint8": "TINYINT UNSIGNED",
"*uint16": "SMALLINT UNSIGNED",
"*uint32": "INT UNSIGNED",
"*uint64": "BIGINT UNSIGNED",
"sql.NullInt64": "BIGINT",
"string": "VARCHAR(255) NOT NULL",
"*string": "VARCHAR(255)",
"sql.NullString": "VARCHAR(255)",
"bool": "TINYINT NOT NULL",
"*bool": "TINYINT",
"sql.NullBool": "TINYINT",
"float32": "DOUBLE NOT NULL",
"float64": "DOUBLE NOT NULL",
"*float32": "DOUBLE",
"*float64": "DOUBLE",
"sql.NullFloat64": "DOUBLE",
"time.Time": "DATETIME NOT NULL",
"*time.Time": "DATETIME",
}
for t1, s1 := range types {
for t2, s2 := range types {
if err := testDiffWithSrc(t, t1, s1, t2, s2); err != nil {
t.Error(err)
continue
}
}
}
}
func testDiffWithSrc(t *testing.T, t1, s1, t2, s2 string) error {
src := fmt.Sprintf("package migu_test\n"+
"type User struct {\n"+
" A %s\n"+
"}", t1)
results, err := migu.Diff(db, "", src)
if err != nil {
return err
}
actual := results
expect := []string{
fmt.Sprintf("CREATE TABLE `user` (\n"+
" `a` %s\n"+
")", s1),
}
if !reflect.DeepEqual(actual, expect) {
t.Errorf(`create: migu.Diff(db, "", %q) => %#v, nil; want %#v, nil`, src, actual, expect)
}
for _, s := range actual {
if _, err := db.Exec(s); err != nil {
return err
}
}
defer db.Exec("DROP TABLE IF EXISTS `user`")
results, err = migu.Diff(db, "", src)
if err != nil {
return err
}
actual = results
expect = []string(nil)
if !reflect.DeepEqual(actual, expect) {
return fmt.Errorf(`before: migu.Diff(db, "", %q) => %#v, nil; want %#v, nil`, src, actual, expect)
}
src = fmt.Sprintf("package migu_test\n"+
"type User struct {\n"+
" A %s\n"+
"}", t2)
results, err = migu.Diff(db, "", src)
if err != nil {
return err
}
actual = results
if s1 == s2 {
expect = []string(nil)
} else {
expect = []string{"ALTER TABLE `user` MODIFY `a` " + s2}
}
sort.Strings(actual)
sort.Strings(expect)
if !reflect.DeepEqual(actual, expect) {
return fmt.Errorf(`diff: %s to %s; migu.Diff(db, "", %q) => %#v, nil; want %#v, nil`, t1, t2, src, actual, expect)
}
for _, s := range actual {
if _, err := db.Exec(s); err != nil {
return err
}
}
src = "package migu_test"
results, err = migu.Diff(db, "", src)
if err != nil {
return err
}
actual = results
expect = []string{"DROP TABLE `user`"}
sort.Strings(actual)
sort.Strings(expect)
if !reflect.DeepEqual(actual, expect) {
return fmt.Errorf(`drop: migu.Diff(db, "", %q) => %#v, nil; want %#v, nil`, src, actual, expect)
}
for _, s := range actual {
if _, err := db.Exec(s); err != nil {
return err
}
}
return nil
}
func TestFprint(t *testing.T) {
for _, v := range []struct {
sqls []string
expect string
}{
{[]string{`
CREATE TABLE user (
name VARCHAR(255)
)`}, `type User struct {
Name *string
}
`},
{[]string{`
CREATE TABLE user (
name VARCHAR(255),
age INT
)`}, `type User struct {
Name *string
Age *int
}
`},
{[]string{`
CREATE TABLE user (
name VARCHAR(255)
)`, `
CREATE TABLE post (
title VARCHAR(255),
content VARCHAR(65533)
)`}, `type Post struct {
Title *string
Content *string
}
type User struct {
Name *string
}
`},
} {
v := v
func() {
for _, sql := range v.sqls {
if _, err := db.Exec(sql); err != nil {
t.Error(err)
return
}
}
defer func() {
for _, v := range []string{
`DROP TABLE IF EXISTS user`,
`DROP TABLE IF EXISTS post`,
} {
if _, err := db.Exec(v); err != nil {
t.Fatal(err)
}
}
}()
var buf bytes.Buffer
if err := migu.Fprint(&buf, db); err != nil {
t.Error(err)
return
}
actual := buf.String()
expect := v.expect
if !reflect.DeepEqual(actual, expect) {
t.Errorf(`migu.Fprint(buf, db); buf => %#v; want %#v`, actual, expect)
}
}()
}
}