|
| 1 | +package client |
| 2 | + |
| 3 | +import ( |
| 4 | + "io/ioutil" |
| 5 | + "net/http" |
| 6 | + |
| 7 | + . "github.com/onsi/ginkgo" |
| 8 | + . "github.com/onsi/gomega" |
| 9 | + "github.com/onsi/gomega/ghttp" |
| 10 | +) |
| 11 | + |
| 12 | +//helper function to load json data from the testdata folder |
| 13 | +func loadData(path string) []byte { |
| 14 | + b, err := ioutil.ReadFile("testdata/" + path) |
| 15 | + if err != nil { |
| 16 | + panic(err) |
| 17 | + } |
| 18 | + return b |
| 19 | +} |
| 20 | + |
| 21 | +var _ = Describe("Client", func() { |
| 22 | + |
| 23 | + var ( |
| 24 | + s *ghttp.Server |
| 25 | + c *Client |
| 26 | + ) |
| 27 | + |
| 28 | + BeforeEach(func() { |
| 29 | + s = ghttp.NewServer() |
| 30 | + //TODO(hagaibarel) add v2 tests |
| 31 | + c = NewClient( |
| 32 | + s.URL(), |
| 33 | + "emqx", |
| 34 | + "v3", |
| 35 | + "admin", |
| 36 | + "public", |
| 37 | + ) |
| 38 | + }) |
| 39 | + |
| 40 | + AfterEach(func() { |
| 41 | + s.Close() |
| 42 | + }) |
| 43 | + |
| 44 | + Context("Successful fetching", func() { |
| 45 | + |
| 46 | + BeforeEach(func() { |
| 47 | + //register route handlers |
| 48 | + s.RouteToHandler("GET", "/api/v3/nodes/emqx/metrics/", ghttp.CombineHandlers( |
| 49 | + ghttp.VerifyBasicAuth("admin", "public"), |
| 50 | + ghttp.VerifyHeader(http.Header{ |
| 51 | + "Accept": []string{"application/json"}, |
| 52 | + }), |
| 53 | + ghttp.RespondWith(200, loadData("metrics.json")), |
| 54 | + )) |
| 55 | + |
| 56 | + s.RouteToHandler("GET", "/api/v3/nodes/emqx/stats/", ghttp.CombineHandlers( |
| 57 | + ghttp.VerifyBasicAuth("admin", "public"), |
| 58 | + ghttp.VerifyHeader(http.Header{ |
| 59 | + "Accept": []string{"application/json"}, |
| 60 | + }), |
| 61 | + ghttp.RespondWith(200, loadData("stats.json")), |
| 62 | + )) |
| 63 | + |
| 64 | + s.RouteToHandler("GET", "/api/v3/nodes/emqx", ghttp.CombineHandlers( |
| 65 | + ghttp.VerifyBasicAuth("admin", "public"), |
| 66 | + ghttp.VerifyHeader(http.Header{ |
| 67 | + "Accept": []string{"application/json"}, |
| 68 | + }), |
| 69 | + ghttp.RespondWith(200, loadData("node.json")), |
| 70 | + )) |
| 71 | + }) |
| 72 | + |
| 73 | + It("should succeed fetching the metrics", func() { |
| 74 | + res, err := c.Fetch() |
| 75 | + |
| 76 | + Expect(err).ShouldNot(HaveOccurred()) |
| 77 | + Expect(res).To(HaveKeyWithValue("nodes_version", "v3.0.1")) |
| 78 | + }) |
| 79 | + }) |
| 80 | + |
| 81 | + Context("Failed requests", func() { |
| 82 | + |
| 83 | + var ( |
| 84 | + statusCode int |
| 85 | + body []byte |
| 86 | + path = "/api/v3/nodes/%s/stats" |
| 87 | + ) |
| 88 | + |
| 89 | + BeforeEach(func() { |
| 90 | + s.AppendHandlers( |
| 91 | + ghttp.CombineHandlers( |
| 92 | + ghttp.VerifyRequest("GET", "/api/v3/nodes/emqx/stats"), |
| 93 | + ghttp.VerifyBasicAuth("admin", "public"), |
| 94 | + ghttp.VerifyHeader(http.Header{ |
| 95 | + "Accept": []string{"application/json"}, |
| 96 | + }), |
| 97 | + ghttp.RespondWithPtr(&statusCode, &body), |
| 98 | + ), |
| 99 | + ) |
| 100 | + }) |
| 101 | + |
| 102 | + It("should fail when the response status code is not 200", func() { |
| 103 | + statusCode = http.StatusNotFound |
| 104 | + body = loadData("badresponse.json") |
| 105 | + |
| 106 | + data, err := c.get(path) |
| 107 | + |
| 108 | + Expect(err).To(HaveOccurred()) |
| 109 | + Expect(err.Error()).To(ContainSubstring("Received status code not ok")) |
| 110 | + Expect(data).To(BeNil()) |
| 111 | + }) |
| 112 | + |
| 113 | + It("should fail when the response body isn't valid json", func() { |
| 114 | + statusCode = http.StatusOK |
| 115 | + body = []byte("not valid json") |
| 116 | + |
| 117 | + data, err := c.get(path) |
| 118 | + |
| 119 | + Expect(err).To(HaveOccurred()) |
| 120 | + Expect(err.Error()).To(ContainSubstring("Error in json decoder")) |
| 121 | + Expect(data).To(BeNil()) |
| 122 | + }) |
| 123 | + |
| 124 | + It("should fail when the response body has Code != 0", func() { |
| 125 | + statusCode = http.StatusOK |
| 126 | + body = loadData("badresponse.json") |
| 127 | + |
| 128 | + data, err := c.get(path) |
| 129 | + |
| 130 | + Expect(err).To(HaveOccurred()) |
| 131 | + Expect(err.Error()).To(ContainSubstring("Recvied code != 0")) |
| 132 | + Expect(data).To(BeNil()) |
| 133 | + }) |
| 134 | + |
| 135 | + It("should fail to create a request for a bad path", func() { |
| 136 | + path := "/api/v3/nodes/emqx/stats" |
| 137 | + statusCode = http.StatusOK |
| 138 | + body = loadData("badresponse.json") |
| 139 | + |
| 140 | + data, err := c.get(path) |
| 141 | + |
| 142 | + Expect(err).To(HaveOccurred()) |
| 143 | + Expect(err.Error()).To(ContainSubstring("Failed to create http request")) |
| 144 | + Expect(data).To(BeNil()) |
| 145 | + |
| 146 | + }) |
| 147 | + |
| 148 | + It("should fail for bad urls", func() { |
| 149 | + statusCode = http.StatusOK |
| 150 | + body = loadData("badresponse.json") |
| 151 | + |
| 152 | + c.setHost("localhost:1859") |
| 153 | + |
| 154 | + data, err := c.get(path) |
| 155 | + |
| 156 | + Expect(err).To(HaveOccurred()) |
| 157 | + Expect(err.Error()).To(ContainSubstring("Failed to get metrics")) |
| 158 | + Expect(data).To(BeNil()) |
| 159 | + }) |
| 160 | + |
| 161 | + }) |
| 162 | +}) |
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