Add Solr input plugin (#2019)

plugins/inputs/solr/solr_test.go

@@ -0,0 +1,62 @@
+package solr
+
+import (
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/influxdata/telegraf/testutil"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGatherStats(t *testing.T) {
+	ts := createMockServer()
+	solr := NewSolr()
+	solr.Servers = []string{ts.URL}
+	var acc testutil.Accumulator
+	require.NoError(t, solr.Gather(&acc))
+
+	acc.AssertContainsTaggedFields(t, "solr_admin",
+		solrAdminMainCoreStatusExpected,
+		map[string]string{"core": "main"})
+
+	acc.AssertContainsTaggedFields(t, "solr_admin",
+		solrAdminCore1StatusExpected,
+		map[string]string{"core": "core1"})
+
+	acc.AssertContainsTaggedFields(t, "solr_core",
+		solrCoreExpected,
+		map[string]string{"core": "main", "handler": "searcher"})
+
+	acc.AssertContainsTaggedFields(t, "solr_queryhandler",
+		solrQueryHandlerExpected,
+		map[string]string{"core": "main", "handler": "org.apache.solr.handler.component.SearchHandler"})
+
+	acc.AssertContainsTaggedFields(t, "solr_updatehandler",
+		solrUpdateHandlerExpected,
+		map[string]string{"core": "main", "handler": "updateHandler"})
+
+	acc.AssertContainsTaggedFields(t, "solr_cache",
+		solrCacheExpected,
+		map[string]string{"core": "main", "handler": "filterCache"})
+}
+
+func createMockServer() *httptest.Server {
+	return httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if strings.Contains(r.URL.Path, "/solr/admin/cores") {
+			w.WriteHeader(http.StatusOK)
+			fmt.Fprintln(w, statusResponse)
+		} else if strings.Contains(r.URL.Path, "solr/main/admin") {
+			w.WriteHeader(http.StatusOK)
+			fmt.Fprintln(w, mBeansMainResponse)
+		} else if strings.Contains(r.URL.Path, "solr/core1/admin") {
+			w.WriteHeader(http.StatusOK)
+			fmt.Fprintln(w, mBeansCore1Response)
+		} else {
+			w.WriteHeader(http.StatusNotFound)
+			fmt.Fprintln(w, "nope")
+		}
+	}))
+}