Loki: add from JSON to dataframes tests (#44375)

* Loki: add from JSON to dataframes tests

* fixed wrong content-type

* added -Inf test-case

pkg/tsdb/loki/framing_test.go

@@ -0,0 +1,138 @@
+package loki
+
+import (
+	"bytes"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/grafana/grafana-plugin-sdk-go/backend"
+	"github.com/grafana/grafana-plugin-sdk-go/experimental"
+	"github.com/grafana/loki/pkg/logcli/client"
+	"github.com/stretchr/testify/require"
+)
+
+// NOTE: in these tests there several different json-content-types.
+// different versions of Loki use different json-content-types.
+// this is probably not important when we will parse them,
+// but i wanted to test for all of them, to be sure.
+
+func TestSuccessResponse(t *testing.T) {
+	tt := []struct {
+		name     string
+		filepath string
+	}{
+		{name: "parse a simple matrix response", filepath: "matrix_simple"},
+		{name: "parse a matrix response with a time-gap in the middle", filepath: "matrix_gap"},
+		// you can produce NaN by having a metric query and add ` / 0` to the end
+		{name: "parse a matrix response with NaN", filepath: "matrix_nan"},
+		// you can produce Infinity by using `quantile_over_time(42,` (value larger than 1)
+		{name: "parse a matrix response with Infinity", filepath: "matrix_inf"},
+	}
+
+	for _, test := range tt {
+		t.Run(test.name, func(t *testing.T) {
+			responseFileName := filepath.Join("testdata", test.filepath+".json")
+			goldenFileName := filepath.Join("testdata", test.filepath+".golden.txt")
+
+			bytes, err := os.ReadFile(responseFileName)
+			require.NoError(t, err)
+
+			frames, err := runQuery(makeMockedClient(200, "application/json", bytes), &lokiQuery{})
+			require.NoError(t, err)
+
+			dr := &backend.DataResponse{
+				Frames: frames,
+				Error:  err,
+			}
+
+			err = experimental.CheckGoldenDataResponse(goldenFileName, dr, true)
+			require.NoError(t, err)
+		})
+	}
+}
+
+func TestErrorResponse(t *testing.T) {
+	// NOTE: when there is an error-response, it comes with
+	// HTTP code 400, and the format seems to change between versions:
+	// 2.3.x: content-type=text/plain, content is plaintext
+	// 2.4.0: content-type=application/json, content is plaintext !!!
+	// 2.4.1: same as 2.4.0
+	// 2.4.2: same as 2.4.0 (2.4.2 is currently the latest)
+	// main-branch: content-type=application/json, content is JSON
+	// we should always be able to to return some kind of error message
+	//
+	// also, the returned error message is not what we want to return
+	// to the user, but this is what is currently returned to the user,
+	// so the tests check for that. we will have to change this in the future.
+
+	tt := []struct {
+		name         string
+		body         []byte
+		contentType  string
+		errorMessage string
+	}{
+		{
+			name: "parse an error response in JSON",
+			body: []byte(`
+			{
+				"status": "error",
+				"code": 400,
+				"message": "parse error at line 1, col 8: something is wrong"
+			}`),
+			contentType:  "application/json; charset=utf-8",
+			errorMessage: "Run out of attempts while querying the server",
+		},
+		{
+			name:         "parse a non-json error body with json content type (loki 2.4.0,2.4.1,2.4.2)",
+			body:         []byte("parse error at line 1, col 8: something is wrong"),
+			contentType:  "application/json; charset=UTF-8",
+			errorMessage: "Run out of attempts while querying the server",
+		},
+		{
+			name:         "parse an error response in plain text",
+			body:         []byte("parse error at line 1, col 8: something is wrong"),
+			contentType:  "text/plain; charset=utf-8",
+			errorMessage: "Run out of attempts while querying the server",
+		},
+	}
+
+	for _, test := range tt {
+		t.Run(test.name, func(t *testing.T) {
+			frames, err := runQuery(makeMockedClient(400, test.contentType, test.body), &lokiQuery{})
+
+			require.Len(t, frames, 0)
+			require.Error(t, err)
+			require.EqualError(t, err, test.errorMessage)
+		})
+	}
+}
+
+type MockedRoundTripper struct {
+	statusCode    int
+	responseBytes []byte
+	contentType   string
+}
+
+func (mockedRT *MockedRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
+	header := http.Header{}
+	header.Add("Content-Type", mockedRT.contentType)
+	return &http.Response{
+		StatusCode: mockedRT.statusCode,
+		Header:     header,
+		Body:       ioutil.NopCloser(bytes.NewReader(mockedRT.responseBytes)),
+	}, nil
+}
+
+func makeMockedClient(statusCode int, contentType string, responseBytes []byte) *client.DefaultClient {
+	client := &client.DefaultClient{
+		Address: "http://localhost:9999",
+		Tripperware: func(t http.RoundTripper) http.RoundTripper {
+			return &MockedRoundTripper{statusCode: statusCode, responseBytes: responseBytes, contentType: contentType}
+		},
+	}
+
+	return client
+}

pkg/tsdb/loki/loki.go

@@ -131,19 +131,7 @@ func (s *Service) QueryData(ctx context.Context, req *backend.QueryDataRequest)
 		span.SetAttributes("stop_unixnano", query.End, attribute.Key("stop_unixnano").Int64(query.End.UnixNano()))
 		defer span.End()
 
-		// `limit` only applies to log-producing queries, and we
+		frames, err := runQuery(client, query)
-		// currently only support metric queries, so this can be set to any value.
-		limit := 1
-
-		// we do not use `interval`, so we set it to zero
-		interval := time.Duration(0)
-
-		value, err := client.QueryRange(query.Expr, limit, query.Start, query.End, logproto.BACKWARD, query.Step, interval, false)
-		if err != nil {
-			return result, err
-		}
-
-		frames, err := parseResponse(value, query)
 		if err != nil {
 			return result, err
 		}
@@ -204,6 +192,23 @@ func parseResponse(value *loghttp.QueryResponse, query *lokiQuery) (data.Frames,
 	return frames, nil
 }
 
+// we extracted this part of the functionality to make it easy to unit-test it
+func runQuery(client *client.DefaultClient, query *lokiQuery) (data.Frames, error) {
+	// `limit` only applies to log-producing queries, and we
+	// currently only support metric queries, so this can be set to any value.
+	limit := 1
+
+	// we do not use `interval`, so we set it to zero
+	interval := time.Duration(0)
+
+	value, err := client.QueryRange(query.Expr, limit, query.Start, query.End, logproto.BACKWARD, query.Step, interval, false)
+	if err != nil {
+		return data.Frames{}, err
+	}
+
+	return parseResponse(value, query)
+}
+
 func (s *Service) getDSInfo(pluginCtx backend.PluginContext) (*datasourceInfo, error) {
 	i, err := s.im.Get(pluginCtx)
 	if err != nil {

pkg/tsdb/loki/testdata/matrix_gap.golden.txt

@@ -0,0 +1,21 @@
+🌟 This was machine generated.  Do not edit. 🌟
+
+Frame[0] 
+Name: {}
+Dimensions: 2 Fields by 6 Rows
++-------------------------------+-----------------+
+| Name: time                    | Name: value     |
+| Labels:                       | Labels:         |
+| Type: []time.Time             | Type: []float64 |
++-------------------------------+-----------------+
+| 2022-01-24 08:54:13 +0000 UTC | 50              |
+| 2022-01-24 08:59:13 +0000 UTC | 57              |
+| 2022-01-24 09:04:13 +0000 UTC | 55              |
+| 2022-01-24 09:34:13 +0000 UTC | 54              |
+| 2022-01-24 09:39:13 +0000 UTC | 55              |
+| 2022-01-24 09:44:13 +0000 UTC | 56              |
++-------------------------------+-----------------+
+
+
+====== TEST DATA RESPONSE (arrow base64) ======
+FRAME=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

pkg/tsdb/loki/testdata/matrix_gap.json

@@ -0,0 +1,19 @@
+{
+  "status": "success",
+  "data": {
+    "resultType": "matrix",
+    "result": [
+      {
+        "metric": {},
+        "values": [
+          [1643014453.815, "50"],
+          [1643014753.815, "57"],
+          [1643015053.815, "55"],
+          [1643016853.815, "54"],
+          [1643017153.815, "55"],
+          [1643017453.815, "56"]
+        ]
+      }
+    ]
+  }
+}

pkg/tsdb/loki/testdata/matrix_inf.golden.txt

@@ -0,0 +1,17 @@
+🌟 This was machine generated.  Do not edit. 🌟
+
+Frame[0] 
+Name: {level="info", location="moon", protocol="http"}
+Dimensions: 2 Fields by 2 Rows
++-------------------------------+--------------------------------------------------+
+| Name: time                    | Name: value                                      |
+| Labels:                       | Labels: level=info, location=moon, protocol=http |
+| Type: []time.Time             | Type: []float64                                  |
++-------------------------------+--------------------------------------------------+
+| 2022-01-24 10:53:31 +0000 UTC | +Inf                                             |
+| 2022-01-24 10:58:31 +0000 UTC | -Inf                                             |
++-------------------------------+--------------------------------------------------+
+
+
+====== TEST DATA RESPONSE (arrow base64) ======
+FRAME=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

pkg/tsdb/loki/testdata/matrix_inf.json

@@ -0,0 +1,19 @@
+{
+  "status": "success",
+  "data": {
+    "resultType": "matrix",
+    "result": [
+      {
+        "metric": {
+          "level": "info",
+          "location": "moon",
+          "protocol": "http"
+        },
+        "values": [
+          [1643021611.9, "+Inf"],
+          [1643021911.9, "-Inf"]
+        ]
+      }
+    ]
+  }
+}

pkg/tsdb/loki/testdata/matrix_nan.golden.txt

@@ -0,0 +1,17 @@
+🌟 This was machine generated.  Do not edit. 🌟
+
+Frame[0] 
+Name: {}
+Dimensions: 2 Fields by 2 Rows
++-------------------------------+-----------------+
+| Name: time                    | Name: value     |
+| Labels:                       | Labels:         |
+| Type: []time.Time             | Type: []float64 |
++-------------------------------+-----------------+
+| 2022-01-24 08:54:10 +0000 UTC | NaN             |
+| 2022-01-24 08:59:10 +0000 UTC | NaN             |
++-------------------------------+-----------------+
+
+
+====== TEST DATA RESPONSE (arrow base64) ======
+FRAME=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

pkg/tsdb/loki/testdata/matrix_nan.json

@@ -0,0 +1,15 @@
+{
+  "status": "success",
+  "data": {
+    "resultType": "matrix",
+    "result": [
+      {
+        "metric": {},
+        "values": [
+          [1643014450.417, "NaN"],
+          [1643014750.417, "NaN"]
+        ]
+      }
+    ]
+  }
+}

pkg/tsdb/loki/testdata/matrix_simple.golden.txt

@@ -0,0 +1,37 @@
+🌟 This was machine generated.  Do not edit. 🌟
+
+Frame[0] 
+Name: {level="error", location="moon"}
+Dimensions: 2 Fields by 4 Rows
++-------------------------------+------------------------------------+
+| Name: time                    | Name: value                        |
+| Labels:                       | Labels: level=error, location=moon |
+| Type: []time.Time             | Type: []float64                    |
++-------------------------------+------------------------------------+
+| 2021-12-10 08:36:06 +0000 UTC | 0.4                                |
+| 2021-12-10 08:36:46 +0000 UTC | 0.2                                |
+| 2021-12-10 08:36:56 +0000 UTC | 0.2                                |
+| 2021-12-10 08:37:46 +0000 UTC | 0.6                                |
++-------------------------------+------------------------------------+
+
+
+
+Frame[1] 
+Name: {level="info", location="mars"}
+Dimensions: 2 Fields by 5 Rows
++-------------------------------+-----------------------------------+
+| Name: time                    | Name: value                       |
+| Labels:                       | Labels: level=info, location=mars |
+| Type: []time.Time             | Type: []float64                   |
++-------------------------------+-----------------------------------+
+| 2021-12-10 08:36:26 +0000 UTC | 0.6                               |
+| 2021-12-10 08:36:36 +0000 UTC | 0.8                               |
+| 2021-12-10 08:36:46 +0000 UTC | 0.8                               |
+| 2021-12-10 08:36:56 +0000 UTC | 0.8                               |
+| 2021-12-10 08:37:56 +0000 UTC | 2.6                               |
++-------------------------------+-----------------------------------+
+
+
+====== TEST DATA RESPONSE (arrow base64) ======
+FRAME=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pkg/tsdb/loki/testdata/matrix_simple.json

@@ -0,0 +1,33 @@
+{
+  "status": "success",
+  "data": {
+    "resultType": "matrix",
+    "result": [
+      {
+        "metric": {
+          "level": "error",
+          "location": "moon"
+        },
+        "values": [
+          [1639125366.989, "0.4"],
+          [1639125406.989, "0.2"],
+          [1639125416.989, "0.2"],
+          [1639125466.989, "0.6"]
+        ]
+      },
+      {
+        "metric": {
+          "level": "info",
+          "location": "mars"
+        },
+        "values": [
+          [1639125386.989, "0.6"],
+          [1639125396.989, "0.8"],
+          [1639125406.989, "0.8"],
+          [1639125416.989, "0.8"],
+          [1639125476.989, "2.6"]
+        ]
+      }
+    ]
+  }
+}