VictoriaMetrics/app/vmalert/datasource/vm_test.go
2020-04-28 00:19:42 +03:00

93 lines
2.7 KiB
Go

package datasource
import (
"context"
"net/http"
"net/http/httptest"
"testing"
)
var (
ctx = context.Background()
basicAuthName = "foo"
basicAuthPass = "bar"
query = "vm_rows"
)
func TestVMSelectQuery(t *testing.T) {
mux := http.NewServeMux()
mux.HandleFunc("/", func(_ http.ResponseWriter, _ *http.Request) {
t.Errorf("should not be called")
})
c := -1
mux.HandleFunc("/api/v1/query", func(w http.ResponseWriter, r *http.Request) {
c++
if r.Method != http.MethodPost {
t.Errorf("expected POST method got %s", r.Method)
}
if name, pass, _ := r.BasicAuth(); name != basicAuthName || pass != basicAuthPass {
t.Errorf("expected %s:%s as basic auth got %s:%s", basicAuthName, basicAuthPass, name, pass)
}
if r.URL.Query().Get("query") != query {
t.Errorf("exptected %s in query param, got %s", query, r.URL.Query().Get("query"))
}
switch c {
case 0:
conn, _, _ := w.(http.Hijacker).Hijack()
_ = conn.Close()
case 1:
w.WriteHeader(500)
case 2:
w.Write([]byte("[]"))
case 3:
w.Write([]byte(`{"status":"error", "errorType":"type:", "error":"some error msg"}`))
case 4:
w.Write([]byte(`{"status":"unknown"}`))
case 5:
w.Write([]byte(`{"status":"success","data":{"resultType":"matrix"}}`))
case 6:
w.Write([]byte(`{"status":"success","data":{"resultType":"vector","result":[{"metric":{"__name__":"vm_rows"},"value":[1583786142,"13763"]}]}}`))
}
})
srv := httptest.NewServer(mux)
defer srv.Close()
am := NewVMStorage(srv.URL, basicAuthName, basicAuthPass, srv.Client())
if _, err := am.Query(ctx, query); err == nil {
t.Fatalf("expected connection error got nil")
}
if _, err := am.Query(ctx, query); err == nil {
t.Fatalf("expected invalid response status error got nil")
}
if _, err := am.Query(ctx, query); err == nil {
t.Fatalf("expected response body error got nil")
}
if _, err := am.Query(ctx, query); err == nil {
t.Fatalf("expected error status got nil")
}
if _, err := am.Query(ctx, query); err == nil {
t.Fatalf("expected unkown status got nil")
}
if _, err := am.Query(ctx, query); err == nil {
t.Fatalf("expected non-vector resultType error got nil")
}
m, err := am.Query(ctx, query)
if err != nil {
t.Fatalf("unexpected %s", err)
}
if len(m) != 1 {
t.Fatalf("exptected 1 metric got %d in %+v", len(m), m)
}
expected := Metric{
Labels: []Label{{Value: "vm_rows", Name: "__name__"}},
Timestamp: 1583786142,
Value: 13763,
}
if m[0].Timestamp != expected.Timestamp &&
m[0].Value != expected.Value &&
m[0].Labels[0].Value != expected.Labels[0].Value &&
m[0].Labels[0].Name != expected.Labels[0].Name {
t.Fatalf("unexpected metric %+v want %+v", m[0], expected)
}
}