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Merge pull request #6 from VictoriaMetrics/add-backend-tests
Added tests for backend part
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,98 @@ | ||
package plugin | ||
|
||
import ( | ||
"testing" | ||
) | ||
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func TestQuery_getQueryURL(t *testing.T) { | ||
type fields struct { | ||
RefID string | ||
Expr string | ||
MaxLines int | ||
} | ||
type args struct { | ||
rawURL string | ||
queryParams string | ||
} | ||
tests := []struct { | ||
name string | ||
fields fields | ||
args args | ||
want string | ||
wantErr bool | ||
}{ | ||
{ | ||
name: "empty values", | ||
fields: fields{ | ||
RefID: "1", | ||
Expr: "", | ||
MaxLines: 0, | ||
}, | ||
args: args{ | ||
rawURL: "", | ||
queryParams: "", | ||
}, | ||
want: "", | ||
wantErr: true, | ||
}, | ||
{ | ||
name: "has rawURL without params", | ||
fields: fields{ | ||
RefID: "1", | ||
Expr: "", | ||
MaxLines: 0, | ||
}, | ||
args: args{ | ||
rawURL: "http://127.0.0.1:9428", | ||
queryParams: "", | ||
}, | ||
want: "http://127.0.0.1:9428/select/logsql/query?limit=1000&query=", | ||
wantErr: false, | ||
}, | ||
{ | ||
name: "has expression and max lines", | ||
fields: fields{ | ||
RefID: "1", | ||
Expr: "_time:1s", | ||
MaxLines: 10, | ||
}, | ||
args: args{ | ||
rawURL: "http://127.0.0.1:9428", | ||
queryParams: "", | ||
}, | ||
want: "http://127.0.0.1:9428/select/logsql/query?limit=10&query=_time%3A1s", | ||
wantErr: false, | ||
}, | ||
{ | ||
name: "has expression and max lines, with queryParams", | ||
fields: fields{ | ||
RefID: "1", | ||
Expr: "_time:1s and syslog", | ||
MaxLines: 10, | ||
}, | ||
args: args{ | ||
rawURL: "http://127.0.0.1:9428", | ||
queryParams: "a=1&b=2", | ||
}, | ||
want: "http://127.0.0.1:9428/select/logsql/query?a=1&b=2&limit=10&query=_time%3A1s+and+syslog", | ||
wantErr: false, | ||
}, | ||
} | ||
for _, tt := range tests { | ||
t.Run(tt.name, func(t *testing.T) { | ||
q := &Query{ | ||
RefID: tt.fields.RefID, | ||
Expr: tt.fields.Expr, | ||
MaxLines: tt.fields.MaxLines, | ||
} | ||
got, err := q.getQueryURL(tt.args.rawURL, tt.args.queryParams) | ||
if (err != nil) != tt.wantErr { | ||
t.Errorf("getQueryURL() error = %v, wantErr %v", err, tt.wantErr) | ||
return | ||
} | ||
if got != tt.want { | ||
t.Errorf("getQueryURL() got = %v, want %v", got, tt.want) | ||
} | ||
}) | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,143 @@ | ||
package plugin | ||
|
||
import ( | ||
"bytes" | ||
"fmt" | ||
"io" | ||
"reflect" | ||
"testing" | ||
"time" | ||
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"github.com/grafana/grafana-plugin-sdk-go/backend" | ||
"github.com/grafana/grafana-plugin-sdk-go/data" | ||
) | ||
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func Test_parseStreamResponse(t *testing.T) { | ||
tests := []struct { | ||
name string | ||
response string | ||
want func() backend.DataResponse | ||
}{ | ||
{ | ||
name: "empty response", | ||
response: "", | ||
want: func() backend.DataResponse { | ||
labelsField := data.NewFieldFromFieldType(data.FieldTypeJSON, 0) | ||
labelsField.Name = gLabelsField | ||
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timeFd := data.NewFieldFromFieldType(data.FieldTypeTime, 0) | ||
timeFd.Name = gTimeField | ||
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lineField := data.NewFieldFromFieldType(data.FieldTypeString, 0) | ||
lineField.Name = gLineField | ||
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frame := data.NewFrame("", timeFd, lineField, labelsField) | ||
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rsp := backend.DataResponse{} | ||
frame.Meta = &data.FrameMeta{} | ||
rsp.Frames = append(rsp.Frames, frame) | ||
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return rsp | ||
}, | ||
}, | ||
{ | ||
name: "incorrect response", | ||
response: "abcd", | ||
want: func() backend.DataResponse { | ||
return newResponseError(fmt.Errorf("error decode response: invalid character 'a' looking for beginning of value"), backend.StatusInternal) | ||
}, | ||
}, | ||
{ | ||
name: "incorrect time in the response", | ||
response: `{"_time":"acdf"}`, | ||
want: func() backend.DataResponse { | ||
return newResponseError(fmt.Errorf("error parse time from _time field: cannot parse acdf: cannot parse duration \"acdf\""), backend.StatusInternal) | ||
}, | ||
}, | ||
{ | ||
name: "invalid stream in the response", | ||
response: `{"_time":"2024-02-20", "_stream":"{application=\"logs-benchmark-Apache.log-1708437847\",hostname=}"}`, | ||
want: func() backend.DataResponse { | ||
return newResponseError(fmt.Errorf("StringExpr: unexpected token \"}\"; want \"string\"; unparsed data: \"}\""), backend.StatusInternal) | ||
}, | ||
}, | ||
{ | ||
name: "correct response line", | ||
response: `{"_msg":"123","_stream":"{application=\"logs-benchmark-Apache.log-1708437847\",hostname=\"e28a622d7792\"}","_time":"2024-02-20T14:04:27Z"}`, | ||
want: func() backend.DataResponse { | ||
labelsField := data.NewFieldFromFieldType(data.FieldTypeJSON, 0) | ||
labelsField.Name = gLabelsField | ||
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timeFd := data.NewFieldFromFieldType(data.FieldTypeTime, 0) | ||
timeFd.Name = gTimeField | ||
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lineField := data.NewFieldFromFieldType(data.FieldTypeString, 0) | ||
lineField.Name = gLineField | ||
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timeFd.Append(time.Date(2024, 02, 20, 14, 04, 27, 0, time.UTC)) | ||
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lineField.Append("123") | ||
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labels := data.Labels{ | ||
"application": "logs-benchmark-Apache.log-1708437847", | ||
"hostname": "e28a622d7792", | ||
} | ||
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b, _ := labelsToJSON(labels) | ||
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labelsField.Append(b) | ||
frame := data.NewFrame("", timeFd, lineField, labelsField) | ||
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rsp := backend.DataResponse{} | ||
frame.Meta = &data.FrameMeta{} | ||
rsp.Frames = append(rsp.Frames, frame) | ||
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return rsp | ||
}, | ||
}, | ||
{ | ||
name: "response with different labels", | ||
response: `{"_msg":"123","_stream":"{application=\"logs-benchmark-Apache.log-1708437847\",hostname=\"e28a622d7792\"}","_time":"2024-02-20T14:04:27Z", "job": "vlogs"}`, | ||
want: func() backend.DataResponse { | ||
labelsField := data.NewFieldFromFieldType(data.FieldTypeJSON, 0) | ||
labelsField.Name = gLabelsField | ||
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timeFd := data.NewFieldFromFieldType(data.FieldTypeTime, 0) | ||
timeFd.Name = gTimeField | ||
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lineField := data.NewFieldFromFieldType(data.FieldTypeString, 0) | ||
lineField.Name = gLineField | ||
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timeFd.Append(time.Date(2024, 02, 20, 14, 04, 27, 0, time.UTC)) | ||
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lineField.Append("123") | ||
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labels := data.Labels{ | ||
"application": "logs-benchmark-Apache.log-1708437847", | ||
"hostname": "e28a622d7792", | ||
"job": "vlogs", | ||
} | ||
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b, _ := labelsToJSON(labels) | ||
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labelsField.Append(b) | ||
frame := data.NewFrame("", timeFd, lineField, labelsField) | ||
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rsp := backend.DataResponse{} | ||
frame.Meta = &data.FrameMeta{} | ||
rsp.Frames = append(rsp.Frames, frame) | ||
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return rsp | ||
}, | ||
}, | ||
} | ||
for _, tt := range tests { | ||
t.Run(tt.name, func(t *testing.T) { | ||
r := io.NopCloser(bytes.NewBuffer([]byte(tt.response))) | ||
w := tt.want() | ||
if got := parseStreamResponse(r); !reflect.DeepEqual(got, w) { | ||
t.Errorf("parseStreamResponse() = %#v, want %#v", got, w) | ||
} | ||
}) | ||
} | ||
} |
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