renaming plugins -> inputs

plugins/inputs/nginx/nginx_test.go

@@ -0,0 +1,85 @@
+package nginx
+
+import (
+	"fmt"
+	"net"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+
+	"github.com/influxdb/telegraf/testutil"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+const sampleResponse = `
+Active connections: 585
+server accepts handled requests
+ 85340 85340 35085
+Reading: 4 Writing: 135 Waiting: 446
+`
+
+// Verify that nginx tags are properly parsed based on the server
+func TestNginxTags(t *testing.T) {
+	urls := []string{"http://localhost/endpoint", "http://localhost:80/endpoint"}
+	var addr *url.URL
+	for _, url1 := range urls {
+		addr, _ = url.Parse(url1)
+		tagMap := getTags(addr)
+		assert.Contains(t, tagMap["server"], "localhost")
+	}
+}
+
+func TestNginxGeneratesMetrics(t *testing.T) {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		var rsp string
+
+		if r.URL.Path == "/stub_status" {
+			rsp = sampleResponse
+		} else {
+			panic("Cannot handle request")
+		}
+
+		fmt.Fprintln(w, rsp)
+	}))
+	defer ts.Close()
+
+	n := &Nginx{
+		Urls: []string{fmt.Sprintf("%s/stub_status", ts.URL)},
+	}
+
+	var acc testutil.Accumulator
+
+	err := n.Gather(&acc)
+	require.NoError(t, err)
+
+	fields := map[string]interface{}{
+		"active":   uint64(585),
+		"accepts":  uint64(85340),
+		"handled":  uint64(85340),
+		"requests": uint64(35085),
+		"reading":  uint64(4),
+		"writing":  uint64(135),
+		"waiting":  uint64(446),
+	}
+	addr, err := url.Parse(ts.URL)
+	if err != nil {
+		panic(err)
+	}
+
+	host, port, err := net.SplitHostPort(addr.Host)
+	if err != nil {
+		host = addr.Host
+		if addr.Scheme == "http" {
+			port = "80"
+		} else if addr.Scheme == "https" {
+			port = "443"
+		} else {
+			port = ""
+		}
+	}
+
+	tags := map[string]string{"server": host, "port": port}
+	acc.AssertContainsTaggedFields(t, "nginx", fields, tags)
+}