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Add unittests for Point json output

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This commit is contained in:
Brian Brazil 2018-02-08 17:28:55 +00:00
parent ecd0a9c6ba
commit 8ede14b24c
1 changed files with 103 additions and 0 deletions
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103
web/api/v1/api_test.go
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@ -20,6 +20,7 @@ import (
"errors"
"fmt"
"io/ioutil"
"math"
"net/http"
"net/http/httptest"
"net/url"
@ -854,6 +855,107 @@ func TestOptionsMethod(t *testing.T) {
}
}
func TestRespond(t *testing.T) {
cases := []struct {
response interface{}
expected string
}{
{
response: &queryData{
ResultType: promql.ValueTypeMatrix,
Result: promql.Matrix{
promql.Series{
Points: []promql.Point{{V: 1, T: 1000}},
Metric: labels.FromStrings("__name__", "foo"),
},
},
},
expected: `{"status":"success","data":{"resultType":"matrix","result":[{"metric":{"__name__":"foo"},"values":[[1,"1"]]}]}}`,
},
{
response: promql.Point{V: 0, T: 0},
expected: `{"status":"success","data":[0,"0"]}`,
},
{
response: promql.Point{V: 20, T: 1},
expected: `{"status":"success","data":[0.001,"20"]}`,
},
{
response: promql.Point{V: 20, T: 10},
expected: `{"status":"success","data":[0.01,"20"]}`,
},
{
response: promql.Point{V: 20, T: 100},
expected: `{"status":"success","data":[0.1,"20"]}`,
},
{
response: promql.Point{V: 20, T: 1001},
expected: `{"status":"success","data":[1.001,"20"]}`,
},
{
response: promql.Point{V: 20, T: 1010},
expected: `{"status":"success","data":[1.01,"20"]}`,
},
{
response: promql.Point{V: 20, T: 1100},
expected: `{"status":"success","data":[1.1,"20"]}`,
},
{
response: promql.Point{V: 20, T: 12345678123456555},
expected: `{"status":"success","data":[12345678123456.557,"20"]}`,
},
{
response: promql.Point{V: 20, T: -1},
expected: `{"status":"success","data":[-0.001,"20"]}`,
},
{
response: promql.Point{V: math.NaN(), T: 0},
expected: `{"status":"success","data":[0,"NaN"]}`,
},
{
response: promql.Point{V: math.Inf(1), T: 0},
expected: `{"status":"success","data":[0,"+Inf"]}`,
},
{
response: promql.Point{V: math.Inf(-1), T: 0},
expected: `{"status":"success","data":[0,"-Inf"]}`,
},
{
response: promql.Point{V: 1.2345678e6, T: 0},
expected: `{"status":"success","data":[0,"1234567.8"]}`,
},
{
response: promql.Point{V: 1.2345678e-6, T: 0},
expected: `{"status":"success","data":[0,"0.0000012345678"]}`,
},
{
response: promql.Point{V: 1.2345678e-67, T: 0},
expected: `{"status":"success","data":[0,"1.2345678e-67"]}`,
},
}
for _, c := range cases {
s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
respond(w, c.response)
}))
defer s.Close()
resp, err := http.Get(s.URL)
if err != nil {
t.Fatalf("Error on test request: %s", err)
}
body, err := ioutil.ReadAll(resp.Body)
defer resp.Body.Close()
if err != nil {
t.Fatalf("Error reading response body: %s", err)
}
if string(body) != c.expected {
t.Fatalf("Expected response \n%v\n but got \n%v\n", c.expected, string(body))
}
}
}
// This is a global to avoid the benchmark being optimized away.
var testResponseWriter = httptest.ResponseRecorder{}
@ -872,6 +974,7 @@ func BenchmarkRespond(b *testing.B) {
},
},
}
b.ResetTimer()
for n := 0; n < b.N; n++ {
respond(&testResponseWriter, response)
}