logs-analyzer/signoz/pkg/query-service/app/http_handler_test.go
2024-09-02 22:47:30 +03:00

133 lines
3.5 KiB
Go

package app
import (
"bytes"
"encoding/json"
"net/http"
"net/http/httptest"
"strings"
"testing"
"go.signoz.io/signoz/pkg/query-service/model"
)
func TestPrepareQuery(t *testing.T) {
type testCase struct {
name string
postData *model.DashboardVars
query string
expectedErr bool
errMsg string
}
testCases := []testCase{
{
name: "test empty query",
postData: &model.DashboardVars{
Query: "",
},
expectedErr: true,
errMsg: "query is required",
},
{
name: "test query with no variables",
postData: &model.DashboardVars{
Query: "select * from table",
},
expectedErr: false,
query: "select * from table",
},
{
name: "test query with variables",
postData: &model.DashboardVars{
Query: "select * from table where id = {{.id}}",
Variables: map[string]interface{}{
"id": "1",
},
},
query: "select * from table where id = '1'",
expectedErr: false,
},
// While this does seem like it should throw error, it shouldn't because empty value is a valid value
// for certain scenarios and should be treated as such.
{
name: "test query with variables and no value",
postData: &model.DashboardVars{
Query: "select * from table where id = {{.id}}",
Variables: map[string]interface{}{
"id": "",
},
},
query: "select * from table where id = ''",
expectedErr: false,
},
{
name: "query contains alter table",
postData: &model.DashboardVars{
Query: "ALTER TABLE signoz_table DELETE where true",
},
expectedErr: true,
errMsg: "operation alter table is not allowed",
},
{
name: "query text produces template exec error",
postData: &model.DashboardVars{
Query: "SELECT durationNano from signoz_traces.signoz_index_v2 WHERE id = {{if .X}}1{{else}}2{{else}}3{{end}}",
},
expectedErr: true,
errMsg: "expected end; found {{else}}",
},
{
name: "variables contain array",
postData: &model.DashboardVars{
Query: "SELECT operation FROM table WHERE serviceName IN {{.serviceName}}",
Variables: map[string]interface{}{
"serviceName": []string{"frontend", "route"},
},
},
query: "SELECT operation FROM table WHERE serviceName IN ['frontend','route']",
},
{
name: "query uses mixed types of variables",
postData: &model.DashboardVars{
Query: "SELECT body FROM table Where id = {{.id}} AND elapsed_time >= {{.elapsed_time}} AND serviceName IN {{.serviceName}}",
Variables: map[string]interface{}{
"serviceName": []string{"frontend", "route"},
"id": "id",
"elapsed_time": 1.24,
},
},
query: "SELECT body FROM table Where id = 'id' AND elapsed_time >= 1.240000 AND serviceName IN ['frontend','route']",
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
var b bytes.Buffer
err := json.NewEncoder(&b).Encode(tc.postData)
if err != nil {
t.Fatal(err)
}
req := httptest.NewRequest(http.MethodPost, "/api/v2/variables/query", &b)
query, err := prepareQuery(req)
if tc.expectedErr {
if err == nil {
t.Errorf("expected error, but got nil")
}
if !strings.Contains(err.Error(), tc.errMsg) {
t.Errorf("expected error message contain: %s, but got: %s", tc.errMsg, err.Error())
}
} else {
if err != nil {
t.Errorf("expected no error, but got: %s", err.Error())
}
if query != tc.query {
t.Errorf("expected query: %s, but got: %s", tc.query, query)
}
}
})
}
}