cloudflare/pint
Publicmirrored from https://github.com/cloudflare/pintAvailable
internal/promapi/query_test.go
207lines · modecode
| 1 | package promapi_test |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "net/http" |
| 6 | "net/http/httptest" |
| 7 | "testing" |
| 8 | "time" |
| 9 | |
| 10 | "github.com/prometheus/common/model" |
| 11 | "github.com/stretchr/testify/assert" |
| 12 | |
| 13 | "github.com/cloudflare/pint/internal/promapi" |
| 14 | ) |
| 15 | |
| 16 | func TestQuery(t *testing.T) { |
| 17 | srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { |
| 18 | err := r.ParseForm() |
| 19 | if err != nil { |
| 20 | t.Fatal(err) |
| 21 | } |
| 22 | query := r.Form.Get("query") |
| 23 | |
| 24 | switch query { |
| 25 | case "empty": |
| 26 | w.WriteHeader(200) |
| 27 | w.Header().Set("Content-Type", "application/json") |
| 28 | _, _ = w.Write([]byte(`{ |
| 29 | "status":"success", |
| 30 | "data":{ |
| 31 | "resultType":"vector", |
| 32 | "result":[] |
| 33 | } |
| 34 | }`)) |
| 35 | case "single_result": |
| 36 | w.WriteHeader(200) |
| 37 | w.Header().Set("Content-Type", "application/json") |
| 38 | _, _ = w.Write([]byte(`{ |
| 39 | "status":"success", |
| 40 | "data":{ |
| 41 | "resultType":"vector", |
| 42 | "result":[{"metric":{},"value":[1614859502.068,"1"]}] |
| 43 | } |
| 44 | }`)) |
| 45 | case "three_results": |
| 46 | w.WriteHeader(200) |
| 47 | w.Header().Set("Content-Type", "application/json") |
| 48 | _, _ = w.Write([]byte(`{ |
| 49 | "status":"success", |
| 50 | "data":{ |
| 51 | "resultType":"vector", |
| 52 | "result":[ |
| 53 | {"metric":{"instance": "1"},"value":[1614859502.068,"1"]}, |
| 54 | {"metric":{"instance": "2"},"value":[1614859502.168,"2"]}, |
| 55 | {"metric":{"instance": "3"},"value":[1614859503.000,"3"]} |
| 56 | ] |
| 57 | } |
| 58 | }`)) |
| 59 | case "once": |
| 60 | w.WriteHeader(200) |
| 61 | w.Header().Set("Content-Type", "application/json") |
| 62 | _, _ = w.Write([]byte(`{ |
| 63 | "status":"success", |
| 64 | "data":{ |
| 65 | "resultType":"vector", |
| 66 | "result":[{"metric":{},"value":[1614859502.068,"1"]}] |
| 67 | } |
| 68 | }`)) |
| 69 | case "matrix": |
| 70 | w.WriteHeader(200) |
| 71 | w.Header().Set("Content-Type", "application/json") |
| 72 | _, _ = w.Write([]byte(`{ |
| 73 | "status":"success", |
| 74 | "data":{ |
| 75 | "resultType":"matrix", |
| 76 | "result":[] |
| 77 | } |
| 78 | }`)) |
| 79 | case "timeout": |
| 80 | w.WriteHeader(200) |
| 81 | w.Header().Set("Content-Type", "application/json") |
| 82 | time.Sleep(time.Second) |
| 83 | _, _ = w.Write([]byte(`{ |
| 84 | "status":"success", |
| 85 | "data":{ |
| 86 | "resultType":"vector", |
| 87 | "result":[] |
| 88 | } |
| 89 | }`)) |
| 90 | default: |
| 91 | w.WriteHeader(400) |
| 92 | w.Header().Set("Content-Type", "application/json") |
| 93 | _, _ = w.Write([]byte(`{ |
| 94 | "status":"error", |
| 95 | "errorType":"bad_data", |
| 96 | "error":"unhandled query" |
| 97 | }`)) |
| 98 | } |
| 99 | })) |
| 100 | defer srv.Close() |
| 101 | |
| 102 | type testCaseT struct { |
| 103 | query string |
| 104 | timeout time.Duration |
| 105 | result promapi.QueryResult |
| 106 | err string |
| 107 | } |
| 108 | |
| 109 | testCases := []testCaseT{ |
| 110 | { |
| 111 | query: "empty", |
| 112 | timeout: time.Second, |
| 113 | result: promapi.QueryResult{ |
| 114 | URI: srv.URL, |
| 115 | Series: model.Vector{}, |
| 116 | }, |
| 117 | }, |
| 118 | { |
| 119 | query: "single_result", |
| 120 | timeout: time.Second, |
| 121 | result: promapi.QueryResult{ |
| 122 | URI: srv.URL, |
| 123 | Series: model.Vector{ |
| 124 | &model.Sample{ |
| 125 | Metric: model.Metric{}, |
| 126 | Value: model.SampleValue(1), |
| 127 | Timestamp: model.Time(1614859502068), |
| 128 | }, |
| 129 | }, |
| 130 | }, |
| 131 | }, |
| 132 | { |
| 133 | query: "three_results", |
| 134 | timeout: time.Second, |
| 135 | result: promapi.QueryResult{ |
| 136 | URI: srv.URL, |
| 137 | Series: model.Vector{ |
| 138 | &model.Sample{ |
| 139 | Metric: model.Metric{"instance": "1"}, |
| 140 | Value: model.SampleValue(1), |
| 141 | Timestamp: model.Time(1614859502068), |
| 142 | }, |
| 143 | &model.Sample{ |
| 144 | Metric: model.Metric{"instance": "2"}, |
| 145 | Value: model.SampleValue(2), |
| 146 | Timestamp: model.Time(1614859502168), |
| 147 | }, |
| 148 | &model.Sample{ |
| 149 | Metric: model.Metric{"instance": "3"}, |
| 150 | Value: model.SampleValue(3), |
| 151 | Timestamp: model.Time(1614859503000), |
| 152 | }, |
| 153 | }, |
| 154 | }, |
| 155 | }, |
| 156 | { |
| 157 | query: "error", |
| 158 | timeout: time.Second, |
| 159 | err: "bad_data: unhandled query", |
| 160 | }, |
| 161 | { |
| 162 | query: "matrix", |
| 163 | timeout: time.Second, |
| 164 | err: "unknown result type: matrix", |
| 165 | }, |
| 166 | { |
| 167 | query: "timeout", |
| 168 | timeout: time.Millisecond * 20, |
| 169 | err: "connection timeout", |
| 170 | }, |
| 171 | { |
| 172 | query: "once", |
| 173 | timeout: time.Second, |
| 174 | result: promapi.QueryResult{ |
| 175 | URI: srv.URL, |
| 176 | Series: model.Vector{ |
| 177 | &model.Sample{ |
| 178 | Metric: model.Metric{}, |
| 179 | Value: model.SampleValue(1), |
| 180 | Timestamp: model.Time(1614859502068), |
| 181 | }, |
| 182 | }, |
| 183 | }, |
| 184 | }, |
| 185 | } |
| 186 | |
| 187 | for _, tc := range testCases { |
| 188 | t.Run(tc.query, func(t *testing.T) { |
| 189 | assert := assert.New(t) |
| 190 | |
| 191 | prom := promapi.NewPrometheus("test", srv.URL, tc.timeout, 1) |
| 192 | prom.StartWorkers() |
| 193 | defer prom.Close() |
| 194 | |
| 195 | qr, err := prom.Query(context.Background(), tc.query) |
| 196 | if tc.err != "" { |
| 197 | assert.EqualError(err, tc.err, tc) |
| 198 | } else { |
| 199 | assert.NoError(err) |
| 200 | } |
| 201 | if qr != nil { |
| 202 | assert.Equal(tc.result.URI, qr.URI) |
| 203 | assert.Equal(tc.result.Series, qr.Series) |
| 204 | } |
| 205 | }) |
| 206 | } |
| 207 | } |
| 208 | |