Add oss test

Signed-off-by: Mark Anderson <manderson@hashicorp.com>

agent/agent_endpoint_oss_test.go

@@ -0,0 +1,49 @@
+//go:build !consulent
+// +build !consulent
+
+package agent
+
+import (
+	"encoding/json"
+	"github.com/stretchr/testify/require"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/hashicorp/consul/testrpc"
+)
+
+func TestAgent_Self_VersionLacksEnt(t *testing.T) {
+	if testing.Short() {
+		t.Skip("too slow for testing.Short")
+	}
+
+	t.Parallel()
+
+	cases := map[string]struct {
+		hcl       string
+		expectXDS bool
+	}{
+		"normal": {
+			hcl: "primary_datacenter = \"dc1\"",
+		},
+	}
+
+	for name, tc := range cases {
+		tc := tc
+		t.Run(name, func(t *testing.T) {
+			a := NewTestAgent(t, tc.hcl)
+			defer a.Shutdown()
+
+			testrpc.WaitForTestAgent(t, a.RPC, "dc1")
+			req, _ := http.NewRequest("GET", "/v1/agent/self", nil)
+			resp := httptest.NewRecorder()
+			a.srv.h.ServeHTTP(resp, req)
+
+			dec := json.NewDecoder(resp.Body)
+			var out map[string]map[string]interface{}
+			require.NoError(t, dec.Decode(&out))
+			require.NotContains(t, out["Config"]["Version"], "ent")
+		})
+	}
+}