mirror of
https://github.com/grafana/grafana.git
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58d17ecad1
* refactor frame and field creation * use influxql package to get the type of the query * remove unnecessary tests * add influxql in go.mod * fix unit test * update ownership * update query expression
126 lines
3.5 KiB
Go
126 lines
3.5 KiB
Go
package querydata
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import (
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"fmt"
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"io"
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"os"
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"path"
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"path/filepath"
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"strings"
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"testing"
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"github.com/grafana/grafana-plugin-sdk-go/experimental"
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"github.com/influxdata/influxql"
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"github.com/stretchr/testify/require"
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"github.com/grafana/grafana/pkg/tsdb/influxdb/models"
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)
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const (
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shouldUpdate = false
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testPath = "../testdata"
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)
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func readJsonFile(filePath string) io.ReadCloser {
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bytes, err := os.ReadFile(filepath.Join(testPath, filepath.Clean(filePath)+".json"))
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if err != nil {
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panic(fmt.Sprintf("cannot read the file: %s", filePath))
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}
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return io.NopCloser(strings.NewReader(string(bytes)))
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}
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func generateQuery(query, resFormat, alias string) *models.Query {
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statement, _ := influxql.ParseStatement(query)
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return &models.Query{
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RawQuery: query,
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UseRawQuery: true,
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Alias: alias,
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ResultFormat: resFormat,
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Statement: statement,
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}
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}
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var testFiles = []string{
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"all_values_are_null",
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"influx_select_all_from_cpu",
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"one_measurement_with_two_columns",
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"response_with_weird_tag",
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"some_values_are_null",
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"simple_response",
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"multiple_series_with_tags_and_multiple_columns",
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"multiple_series_with_tags",
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"empty_response",
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"metric_find_queries",
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"show_tag_values_response",
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"retention_policy",
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"simple_response_with_diverse_data_types",
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"multiple_measurements",
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"string_column_with_null_value",
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"string_column_with_null_value2",
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"many_columns",
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"response_with_nil_bools_and_nil_strings",
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"invalid_value_format",
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}
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func TestReadInfluxAsTimeSeries(t *testing.T) {
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for _, f := range testFiles {
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t.Run(f, runScenario(f, "time_series"))
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}
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}
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func TestReadInfluxAsTable(t *testing.T) {
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for _, f := range testFiles {
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t.Run(f, runScenario(f, "table"))
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}
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}
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func runScenario(tf string, resultFormat string) func(t *testing.T) {
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return func(t *testing.T) {
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f := readJsonFile(tf)
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query := generateQuery("Test raw query", resultFormat, "")
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runQuery(t, f, tf, resultFormat, query)
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}
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}
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func runQuery(t *testing.T, f io.ReadCloser, tf string, rf string, query *models.Query) {
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rsp := ResponseParse(f, 200, query)
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if strings.Contains(tf, "error") {
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require.Error(t, rsp.Error)
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return
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}
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require.NoError(t, rsp.Error)
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fname := tf + "." + rf + ".golden"
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experimental.CheckGoldenJSONResponse(t, testPath, fname, rsp, shouldUpdate)
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}
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func TestParsingAsTimeSeriesWithoutTimeColumn(t *testing.T) {
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t.Run("cardinality", func(t *testing.T) {
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f, err := os.Open(path.Join(testPath, filepath.Clean("cardinality.json")))
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require.NoError(t, err)
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query := generateQuery(`SHOW TAG VALUES CARDINALITY with key = "host"`, "time_series", "")
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runQuery(t, f, "cardinality", "time_series", query)
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})
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t.Run("create frames for tag values and without time column even the query string has cardinality as string", func(t *testing.T) {
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res := ResponseParse(readJsonFile("show_tag_values_response"), 200, generateQuery("SHOW TAG VALUES FROM custom_influxdb_cardinality WITH KEY = \"database\"", "time_series", ""))
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require.NoError(t, res.Error)
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require.Equal(t, "Value", res.Frames[0].Fields[0].Name)
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require.Equal(t, "cpu-total", *res.Frames[0].Fields[0].At(0).(*string))
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})
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}
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func TestInfluxDBStreamingParser(t *testing.T) {
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t.Run("Influxdb response parser with error message", func(t *testing.T) {
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result := ResponseParse(readJsonFile("invalid_response"), 400, generateQuery("Test raw query", "time_series", ""))
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require.Nil(t, result.Frames)
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require.EqualError(t, result.Error, "InfluxDB returned error: failed to parse query: found WERE, expected ; at line 1, char 38")
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})
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}
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