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Merge pull request #23 from aereal/impl-prepare
feat: support Prepare()
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| package timestreamdriver | ||
|
|
||
| import ( | ||
| "database/sql" | ||
| "math" | ||
| "reflect" | ||
| "strconv" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/aws/aws-sdk-go/aws" | ||
| "github.com/aws/aws-sdk-go/service/timestreamquery" | ||
| ) | ||
|
|
||
| func testRowsQueryScalar(t *testing.T, rows *sql.Rows) { | ||
| defer rows.Close() | ||
| expectedColumns := columnTypeExpectations{ | ||
| {name: "int", databaseTypeName: timestreamquery.ScalarTypeInteger, scanType: reflect.TypeOf(int(0))}, | ||
| {name: "big", databaseTypeName: timestreamquery.ScalarTypeBigint, scanType: reflect.TypeOf(int64(0))}, | ||
| {name: "percent", databaseTypeName: timestreamquery.ScalarTypeDouble, scanType: reflect.TypeOf(float64(0))}, | ||
| {name: "bool", databaseTypeName: timestreamquery.ScalarTypeBoolean, scanType: reflect.TypeOf(true)}, | ||
| {name: "str", databaseTypeName: timestreamquery.ScalarTypeVarchar, scanType: reflect.TypeOf("")}, | ||
| {name: "dur1", databaseTypeName: timestreamquery.ScalarTypeIntervalDayToSecond, scanType: reflect.TypeOf("")}, | ||
| {name: "dur2", databaseTypeName: timestreamquery.ScalarTypeIntervalYearToMonth, scanType: reflect.TypeOf("")}, | ||
| {name: "nullish", databaseTypeName: timestreamquery.ScalarTypeUnknown, scanType: reflect.TypeOf(nil)}, | ||
| {name: "time", databaseTypeName: timestreamquery.ScalarTypeTime, scanType: reflect.TypeOf(time.Time{})}, | ||
| {name: "dt", databaseTypeName: timestreamquery.ScalarTypeDate, scanType: reflect.TypeOf(time.Time{})}, | ||
| {name: "ts", databaseTypeName: timestreamquery.ScalarTypeTimestamp, scanType: reflect.TypeOf(time.Time{})}, | ||
| {name: "nullableInt", databaseTypeName: timestreamquery.ScalarTypeInteger, scanType: reflect.TypeOf(int(0))}, | ||
| } | ||
| if cts, err := rows.ColumnTypes(); err == nil { | ||
| expectedColumns.compare(t, cts) | ||
| } else { | ||
| t.Error(err) | ||
| } | ||
| rowsScanned := false | ||
| for rows.Next() { | ||
| rowsScanned = true | ||
| var ( | ||
| c1 int | ||
| c2 uint64 | ||
| c3 float64 | ||
| c4 bool | ||
| c5 string | ||
| c6 string | ||
| c7 string | ||
| c8 interface{} | ||
| c9 time.Time | ||
| c10 time.Time | ||
| c11 time.Time | ||
| c12 *int | ||
| ) | ||
| if err := rows.Scan(&c1, &c2, &c3, &c4, &c5, &c6, &c7, &c8, &c9, &c10, &c11, &c12); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| if c1 != 1 { | ||
| t.Errorf("c1: expected=%v got=%v", 1, c1) | ||
| } | ||
| if c2 != math.MaxUint64 { | ||
| t.Errorf("c2: expected=%v got=%v", uint64(math.MaxUint64), c2) | ||
| } | ||
| if c3 != 0.5 { | ||
| t.Errorf("c3: expected=%v got=%v", 0.5, c3) | ||
| } | ||
| if c4 != true { | ||
| t.Errorf("c4: expected=%v got=%v", true, c4) | ||
| } | ||
| if c5 != "hi" { | ||
| t.Errorf("c5: expected=%v got=%v", "hi", c5) | ||
| } | ||
| if c6 != "0 01:00:00.000000000" { | ||
| t.Errorf("c6: expected=%v got=%v", "0 01:00:00.000000000", c6) | ||
| } | ||
| if c7 != "90 01:00:00.000000000" { | ||
| t.Errorf("c7: expected=%v got=%v", "90 01:00:00.000000000", c7) | ||
| } | ||
| expectedTime := time.Unix(1262349296, 0).UTC() | ||
| if !expectedTime.Equal(c9) { | ||
| t.Errorf("c9: expected=%s got=%s", expectedTime, c9) | ||
| } | ||
| expectedDate := time.Unix(1262304000, 0).UTC() | ||
| if !expectedDate.Equal(c10) { | ||
| t.Errorf("c10: expected=%s got=%s", expectedDate, c10) | ||
| } | ||
| if !expectedTime.Equal(c11) { | ||
| t.Errorf("c11: expected=%s got=%s", expectedDate, c11) | ||
| } | ||
| if c12 != nil { | ||
| t.Errorf("c12: expected=nil got=%#v", c12) | ||
| } | ||
| } | ||
| if !rowsScanned { | ||
| t.Error("No rows scanned") | ||
| } | ||
| } | ||
|
|
||
| func scalarOutput() *timestreamquery.QueryOutput { | ||
| return ×treamquery.QueryOutput{ | ||
| ColumnInfo: []*timestreamquery.ColumnInfo{ | ||
| scalarColumn("int", timestreamquery.ScalarTypeInteger), | ||
| scalarColumn("big", timestreamquery.ScalarTypeBigint), | ||
| scalarColumn("percent", timestreamquery.ScalarTypeDouble), | ||
| scalarColumn("bool", timestreamquery.ScalarTypeBoolean), | ||
| scalarColumn("str", timestreamquery.ScalarTypeVarchar), | ||
| scalarColumn("dur1", timestreamquery.ScalarTypeIntervalDayToSecond), | ||
| scalarColumn("dur2", timestreamquery.ScalarTypeIntervalYearToMonth), | ||
| scalarColumn("nullish", timestreamquery.ScalarTypeUnknown), | ||
| scalarColumn("time", timestreamquery.ScalarTypeTime), | ||
| scalarColumn("dt", timestreamquery.ScalarTypeDate), | ||
| scalarColumn("ts", timestreamquery.ScalarTypeTimestamp), | ||
| scalarColumn("nullableInt", timestreamquery.ScalarTypeInteger), | ||
| }, | ||
| Rows: []*timestreamquery.Row{{ | ||
| Data: []*timestreamquery.Datum{ | ||
| {ScalarValue: aws.String("1")}, | ||
| {ScalarValue: aws.String(strconv.FormatUint(math.MaxUint64, 10))}, | ||
| {ScalarValue: aws.String("0.5")}, | ||
| {ScalarValue: aws.String("true")}, | ||
| {ScalarValue: aws.String("hi")}, | ||
| {ScalarValue: aws.String("0 01:00:00.000000000")}, | ||
| {ScalarValue: aws.String("90 01:00:00.000000000")}, | ||
| {}, | ||
| {ScalarValue: aws.String("2010-01-01 12:34:56.000000000")}, | ||
| {ScalarValue: aws.String("2010-01-01")}, | ||
| {ScalarValue: aws.String("2010-01-01 12:34:56.000000000")}, | ||
| {NullValue: aws.Bool(true)}, | ||
| }, | ||
| }}, | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| package timestreamdriver | ||
|
|
||
| import ( | ||
| "context" | ||
| "database/sql/driver" | ||
| ) | ||
|
|
||
| type stmt struct { | ||
| query string | ||
| cn *conn | ||
| } | ||
|
|
||
| var _ interface { | ||
| driver.Stmt | ||
| driver.StmtQueryContext | ||
| } = &stmt{} | ||
|
|
||
| func (s *stmt) Close() error { | ||
| return nil | ||
| } | ||
|
|
||
| func (s *stmt) NumInput() int { | ||
| return -1 | ||
| } | ||
|
|
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| func (s *stmt) Exec(args []driver.Value) (driver.Result, error) { | ||
| return nil, driver.ErrSkip | ||
| } | ||
|
|
||
| func (s *stmt) Query(args []driver.Value) (driver.Rows, error) { | ||
| vs := make([]driver.NamedValue, len(args)) | ||
| for i, a := range args { | ||
| vs[i] = driver.NamedValue{Ordinal: i + 1, Value: a} | ||
| } | ||
| return s.QueryContext(context.Background(), vs) | ||
| } | ||
|
|
||
| func (s *stmt) QueryContext(ctx context.Context, args []driver.NamedValue) (driver.Rows, error) { | ||
| return s.cn.QueryContext(ctx, s.query, args) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| package timestreamdriver | ||
|
|
||
| import ( | ||
| "context" | ||
| "database/sql" | ||
| "encoding/json" | ||
| "net/http" | ||
| "net/http/httptest" | ||
| "testing" | ||
|
|
||
| "github.com/aws/aws-sdk-go/aws" | ||
| "github.com/aws/aws-sdk-go/aws/credentials" | ||
| "github.com/aws/aws-sdk-go/aws/session" | ||
| "github.com/aws/aws-sdk-go/service/timestreamquery" | ||
| ) | ||
|
|
||
| func TestStatement_Prepare_QueryContext_Scalar(t *testing.T) { | ||
| db, close := prepareTestDB() | ||
| defer close() | ||
| ctx := context.Background() | ||
| st, err := db.PrepareContext(ctx, `SELECT 1 FROM table1 WHERE name = ?`) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| defer st.Close() | ||
| rows, err := st.QueryContext(ctx, "me") | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| testRowsQueryScalar(t, rows) | ||
| } | ||
|
|
||
| func prepareTestDB() (*sql.DB, func()) { | ||
| srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| _ = json.NewEncoder(w).Encode(scalarOutput()) | ||
| })) | ||
| tsq := timestreamquery.New(session.Must(session.NewSessionWithOptions(session.Options{ | ||
| Config: aws.Config{ | ||
| Region: aws.String("us-east-1"), | ||
| Endpoint: aws.String(srv.URL), | ||
| Credentials: credentials.NewStaticCredentials("id", "secret", "token"), | ||
| }, | ||
| }))) | ||
|
|
||
| return sql.OpenDB(&connector{tsq}), func() { srv.Close() } | ||
| } |