mirror of
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postgres: decouple sqleng (#86055)
This commit is contained in:
Gábor Farkas
438
pkg/tsdb/grafana-postgresql-datasource/sqleng/sql_engine_test.go
Normal file
438
pkg/tsdb/grafana-postgresql-datasource/sqleng/sql_engine_test.go
Normal file
@ -0,0 +1,438 @@
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package sqleng
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import (
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"fmt"
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"net"
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"testing"
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"time"
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"github.com/grafana/grafana-plugin-sdk-go/backend"
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"github.com/grafana/grafana-plugin-sdk-go/data"
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"github.com/grafana/grafana-plugin-sdk-go/data/sqlutil"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/grafana/grafana-plugin-sdk-go/backend/log"
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"github.com/grafana/grafana/pkg/tsdb/grafana-postgresql-datasource/sqleng/util"
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)
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func TestSQLEngine(t *testing.T) {
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dt := time.Date(2018, 3, 14, 21, 20, 6, int(527345*time.Microsecond), time.UTC)
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t.Run("Handle interpolating $__interval and $__interval_ms", func(t *testing.T) {
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from := time.Date(2018, 4, 12, 18, 0, 0, 0, time.UTC)
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to := from.Add(5 * time.Minute)
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timeRange := backend.TimeRange{From: from, To: to}
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text := "$__interval $__timeGroupAlias(time,$__interval) $__interval_ms"
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t.Run("interpolate 10 minutes $__interval", func(t *testing.T) {
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query := backend.DataQuery{JSON: []byte("{}"), MaxDataPoints: 1500, Interval: time.Minute * 10}
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sql := Interpolate(query, timeRange, "", text)
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require.Equal(t, "10m $__timeGroupAlias(time,10m) 600000", sql)
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})
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t.Run("interpolate 4seconds $__interval", func(t *testing.T) {
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query := backend.DataQuery{JSON: []byte("{}"), MaxDataPoints: 1500, Interval: time.Second * 4}
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sql := Interpolate(query, timeRange, "", text)
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require.Equal(t, "4s $__timeGroupAlias(time,4s) 4000", sql)
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})
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t.Run("interpolate 200 milliseconds $__interval", func(t *testing.T) {
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query := backend.DataQuery{JSON: []byte("{}"), MaxDataPoints: 1500, Interval: time.Millisecond * 200}
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sql := Interpolate(query, timeRange, "", text)
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require.Equal(t, "200ms $__timeGroupAlias(time,200ms) 200", sql)
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})
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})
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t.Run("Given a time range between 2018-04-12 00:00 and 2018-04-12 00:05", func(t *testing.T) {
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from := time.Date(2018, 4, 12, 18, 0, 0, 0, time.UTC)
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to := from.Add(5 * time.Minute)
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timeRange := backend.TimeRange{From: from, To: to}
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query := backend.DataQuery{JSON: []byte("{}"), MaxDataPoints: 1500, Interval: time.Second * 60}
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t.Run("interpolate __unixEpochFrom function", func(t *testing.T) {
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sql := Interpolate(query, timeRange, "", "select $__unixEpochFrom()")
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require.Equal(t, fmt.Sprintf("select %d", from.Unix()), sql)
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})
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t.Run("interpolate __unixEpochTo function", func(t *testing.T) {
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sql := Interpolate(query, timeRange, "", "select $__unixEpochTo()")
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require.Equal(t, fmt.Sprintf("select %d", to.Unix()), sql)
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})
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})
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t.Run("Given row values with int64 as time columns", func(t *testing.T) {
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tSeconds := dt.Unix()
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tMilliseconds := dt.UnixNano() / 1e6
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tNanoSeconds := dt.UnixNano()
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var nilPointer *int64
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originFrame := data.NewFrame("",
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data.NewField("time1", nil, []int64{
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tSeconds,
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}),
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data.NewField("time2", nil, []*int64{
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util.Pointer(tSeconds),
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}),
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data.NewField("time3", nil, []int64{
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tMilliseconds,
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}),
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data.NewField("time4", nil, []*int64{
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util.Pointer(tMilliseconds),
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}),
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data.NewField("time5", nil, []int64{
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tNanoSeconds,
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}),
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data.NewField("time6", nil, []*int64{
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util.Pointer(tNanoSeconds),
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}),
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data.NewField("time7", nil, []*int64{
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nilPointer,
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}),
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)
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for i := 0; i < len(originFrame.Fields); i++ {
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err := convertSQLTimeColumnToEpochMS(originFrame, i)
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require.NoError(t, err)
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}
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require.Equal(t, dt.Unix(), (*originFrame.Fields[0].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[1].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[2].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[3].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[4].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[5].At(0).(*time.Time)).Unix())
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require.Nil(t, originFrame.Fields[6].At(0))
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})
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t.Run("Given row values with uint64 as time columns", func(t *testing.T) {
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tSeconds := uint64(dt.Unix())
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tMilliseconds := uint64(dt.UnixNano() / 1e6)
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tNanoSeconds := uint64(dt.UnixNano())
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var nilPointer *uint64
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originFrame := data.NewFrame("",
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data.NewField("time1", nil, []uint64{
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tSeconds,
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}),
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data.NewField("time2", nil, []*uint64{
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util.Pointer(tSeconds),
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}),
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data.NewField("time3", nil, []uint64{
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tMilliseconds,
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}),
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data.NewField("time4", nil, []*uint64{
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util.Pointer(tMilliseconds),
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}),
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data.NewField("time5", nil, []uint64{
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tNanoSeconds,
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}),
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data.NewField("time6", nil, []*uint64{
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util.Pointer(tNanoSeconds),
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}),
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data.NewField("time7", nil, []*uint64{
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nilPointer,
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}),
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)
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for i := 0; i < len(originFrame.Fields); i++ {
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err := convertSQLTimeColumnToEpochMS(originFrame, i)
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require.NoError(t, err)
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}
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require.Equal(t, dt.Unix(), (*originFrame.Fields[0].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[1].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[2].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[3].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[4].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[5].At(0).(*time.Time)).Unix())
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require.Nil(t, originFrame.Fields[6].At(0))
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})
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t.Run("Given row values with int32 as time columns", func(t *testing.T) {
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tSeconds := int32(dt.Unix())
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var nilInt *int32
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originFrame := data.NewFrame("",
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data.NewField("time1", nil, []int32{
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tSeconds,
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}),
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data.NewField("time2", nil, []*int32{
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util.Pointer(tSeconds),
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}),
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data.NewField("time7", nil, []*int32{
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nilInt,
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}),
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)
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for i := 0; i < 3; i++ {
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err := convertSQLTimeColumnToEpochMS(originFrame, i)
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require.NoError(t, err)
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}
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require.Equal(t, dt.Unix(), (*originFrame.Fields[0].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[1].At(0).(*time.Time)).Unix())
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require.Nil(t, originFrame.Fields[2].At(0))
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})
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t.Run("Given row values with uint32 as time columns", func(t *testing.T) {
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tSeconds := uint32(dt.Unix())
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var nilInt *uint32
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originFrame := data.NewFrame("",
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data.NewField("time1", nil, []uint32{
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tSeconds,
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}),
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data.NewField("time2", nil, []*uint32{
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util.Pointer(tSeconds),
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}),
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data.NewField("time7", nil, []*uint32{
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nilInt,
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}),
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)
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for i := 0; i < len(originFrame.Fields); i++ {
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err := convertSQLTimeColumnToEpochMS(originFrame, i)
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require.NoError(t, err)
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}
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require.Equal(t, dt.Unix(), (*originFrame.Fields[0].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[1].At(0).(*time.Time)).Unix())
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require.Nil(t, originFrame.Fields[2].At(0))
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})
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t.Run("Given row values with float64 as time columns", func(t *testing.T) {
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tSeconds := float64(dt.UnixNano()) / float64(time.Second)
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tMilliseconds := float64(dt.UnixNano()) / float64(time.Millisecond)
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tNanoSeconds := float64(dt.UnixNano())
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var nilPointer *float64
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originFrame := data.NewFrame("",
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data.NewField("time1", nil, []float64{
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tSeconds,
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}),
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data.NewField("time2", nil, []*float64{
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util.Pointer(tSeconds),
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}),
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data.NewField("time3", nil, []float64{
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tMilliseconds,
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}),
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data.NewField("time4", nil, []*float64{
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util.Pointer(tMilliseconds),
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}),
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data.NewField("time5", nil, []float64{
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tNanoSeconds,
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}),
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data.NewField("time6", nil, []*float64{
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util.Pointer(tNanoSeconds),
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}),
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data.NewField("time7", nil, []*float64{
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nilPointer,
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}),
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)
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for i := 0; i < len(originFrame.Fields); i++ {
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err := convertSQLTimeColumnToEpochMS(originFrame, i)
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require.NoError(t, err)
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}
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require.Equal(t, dt.Unix(), (*originFrame.Fields[0].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[1].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[2].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[3].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[4].At(0).(*time.Time)).Unix())
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require.Equal(t, dt.Unix(), (*originFrame.Fields[5].At(0).(*time.Time)).Unix())
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require.Nil(t, originFrame.Fields[6].At(0))
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})
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t.Run("Given row values with float32 as time columns", func(t *testing.T) {
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tSeconds := float32(dt.Unix())
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var nilInt *float32
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originFrame := data.NewFrame("",
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data.NewField("time1", nil, []float32{
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tSeconds,
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}),
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data.NewField("time2", nil, []*float32{
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util.Pointer(tSeconds),
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}),
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data.NewField("time7", nil, []*float32{
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nilInt,
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}),
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)
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for i := 0; i < len(originFrame.Fields); i++ {
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err := convertSQLTimeColumnToEpochMS(originFrame, i)
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require.NoError(t, err)
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}
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require.Equal(t, int64(tSeconds), (*originFrame.Fields[0].At(0).(*time.Time)).Unix())
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require.Equal(t, int64(tSeconds), (*originFrame.Fields[1].At(0).(*time.Time)).Unix())
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require.Nil(t, originFrame.Fields[2].At(0))
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})
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t.Run("Given row with value columns, would be converted to float64", func(t *testing.T) {
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originFrame := data.NewFrame("",
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data.NewField("value1", nil, []int64{
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int64(1),
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}),
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data.NewField("value2", nil, []*int64{
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util.Pointer(int64(1)),
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}),
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data.NewField("value3", nil, []int32{
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int32(1),
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}),
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data.NewField("value4", nil, []*int32{
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util.Pointer(int32(1)),
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}),
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data.NewField("value5", nil, []int16{
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int16(1),
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}),
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data.NewField("value6", nil, []*int16{
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util.Pointer(int16(1)),
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}),
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data.NewField("value7", nil, []int8{
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int8(1),
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}),
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data.NewField("value8", nil, []*int8{
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util.Pointer(int8(1)),
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}),
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data.NewField("value9", nil, []float64{
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float64(1),
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}),
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data.NewField("value10", nil, []*float64{
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util.Pointer(1.0),
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}),
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data.NewField("value11", nil, []float32{
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float32(1),
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}),
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data.NewField("value12", nil, []*float32{
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util.Pointer(float32(1)),
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}),
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data.NewField("value13", nil, []uint64{
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uint64(1),
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}),
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data.NewField("value14", nil, []*uint64{
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util.Pointer(uint64(1)),
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}),
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data.NewField("value15", nil, []uint32{
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uint32(1),
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}),
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data.NewField("value16", nil, []*uint32{
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util.Pointer(uint32(1)),
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}),
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data.NewField("value17", nil, []uint16{
|
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uint16(1),
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}),
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data.NewField("value18", nil, []*uint16{
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util.Pointer(uint16(1)),
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}),
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data.NewField("value19", nil, []uint8{
|
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uint8(1),
|
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}),
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data.NewField("value20", nil, []*uint8{
|
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util.Pointer(uint8(1)),
|
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}),
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)
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for i := 0; i < len(originFrame.Fields); i++ {
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_, err := convertSQLValueColumnToFloat(originFrame, i)
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require.NoError(t, err)
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if i == 8 {
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require.Equal(t, float64(1), originFrame.Fields[i].At(0).(float64))
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} else {
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require.NotNil(t, originFrame.Fields[i].At(0).(*float64))
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require.Equal(t, float64(1), *originFrame.Fields[i].At(0).(*float64))
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}
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}
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})
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t.Run("Given row with nil value columns", func(t *testing.T) {
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var int64NilPointer *int64
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var int32NilPointer *int32
|
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var int16NilPointer *int16
|
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var int8NilPointer *int8
|
||||
var float64NilPointer *float64
|
||||
var float32NilPointer *float32
|
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var uint64NilPointer *uint64
|
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var uint32NilPointer *uint32
|
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var uint16NilPointer *uint16
|
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var uint8NilPointer *uint8
|
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|
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originFrame := data.NewFrame("",
|
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data.NewField("value1", nil, []*int64{
|
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int64NilPointer,
|
||||
}),
|
||||
data.NewField("value2", nil, []*int32{
|
||||
int32NilPointer,
|
||||
}),
|
||||
data.NewField("value3", nil, []*int16{
|
||||
int16NilPointer,
|
||||
}),
|
||||
data.NewField("value4", nil, []*int8{
|
||||
int8NilPointer,
|
||||
}),
|
||||
data.NewField("value5", nil, []*float64{
|
||||
float64NilPointer,
|
||||
}),
|
||||
data.NewField("value6", nil, []*float32{
|
||||
float32NilPointer,
|
||||
}),
|
||||
data.NewField("value7", nil, []*uint64{
|
||||
uint64NilPointer,
|
||||
}),
|
||||
data.NewField("value8", nil, []*uint32{
|
||||
uint32NilPointer,
|
||||
}),
|
||||
data.NewField("value9", nil, []*uint16{
|
||||
uint16NilPointer,
|
||||
}),
|
||||
data.NewField("value10", nil, []*uint8{
|
||||
uint8NilPointer,
|
||||
}),
|
||||
)
|
||||
for i := 0; i < len(originFrame.Fields); i++ {
|
||||
t.Run("", func(t *testing.T) {
|
||||
_, err := convertSQLValueColumnToFloat(originFrame, i)
|
||||
require.NoError(t, err)
|
||||
require.Nil(t, originFrame.Fields[i].At(0))
|
||||
})
|
||||
}
|
||||
})
|
||||
|
||||
t.Run("Should not return raw connection errors", func(t *testing.T) {
|
||||
err := net.OpError{Op: "Dial", Err: fmt.Errorf("inner-error")}
|
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transformer := &testQueryResultTransformer{}
|
||||
dp := DataSourceHandler{
|
||||
log: backend.NewLoggerWith("logger", "test"),
|
||||
queryResultTransformer: transformer,
|
||||
}
|
||||
resultErr := dp.TransformQueryError(dp.log, &err)
|
||||
assert.False(t, transformer.transformQueryErrorWasCalled)
|
||||
errorText := resultErr.Error()
|
||||
assert.NotEqual(t, err, resultErr)
|
||||
assert.NotContains(t, errorText, "inner-error")
|
||||
assert.Contains(t, errorText, "failed to connect to server")
|
||||
})
|
||||
|
||||
t.Run("Should return non-connection errors unmodified", func(t *testing.T) {
|
||||
err := fmt.Errorf("normal error")
|
||||
transformer := &testQueryResultTransformer{}
|
||||
dp := DataSourceHandler{
|
||||
log: backend.NewLoggerWith("logger", "test"),
|
||||
queryResultTransformer: transformer,
|
||||
}
|
||||
resultErr := dp.TransformQueryError(dp.log, err)
|
||||
assert.True(t, transformer.transformQueryErrorWasCalled)
|
||||
assert.Equal(t, err, resultErr)
|
||||
assert.ErrorIs(t, err, resultErr)
|
||||
})
|
||||
}
|
||||
|
||||
type testQueryResultTransformer struct {
|
||||
transformQueryErrorWasCalled bool
|
||||
}
|
||||
|
||||
func (t *testQueryResultTransformer) TransformQueryError(_ log.Logger, err error) error {
|
||||
t.transformQueryErrorWasCalled = true
|
||||
return err
|
||||
}
|
||||
|
||||
func (t *testQueryResultTransformer) GetConverterList() []sqlutil.StringConverter {
|
||||
return nil
|
||||
}
|
||||
Reference in New Issue
Block a user