Fix user listing

Problem with nil check in whereMasked (user repo)

system/repository/user.go

@@ -8,6 +8,7 @@ import (
 	"github.com/titpetric/factory"
 	"gopkg.in/Masterminds/squirrel.v1"
 
+	"github.com/cortezaproject/corteza-server/pkg/permissions"
 	"github.com/cortezaproject/corteza-server/pkg/rh"
 	"github.com/cortezaproject/corteza-server/system/types"
 )
@@ -115,7 +116,7 @@ func (r user) Find(filter types.UserFilter) (set types.UserSet, f types.UserFilt
 	q := r.queryNoFilter()
 
 	// Returns user filter (flt) wrapped in IF() function with cnd as condition (when cnd != nil)
-	whereMasked := func(cnd squirrel.Sqlizer, flt squirrel.Sqlizer) squirrel.Sqlizer {
+	whereMasked := func(cnd *permissions.ResourceFilter, flt squirrel.Sqlizer) squirrel.Sqlizer {
 		if cnd != nil {
 			return rh.SquirrelFunction("IF", cnd, flt, squirrel.Expr("false"))
 		} else {

tests/system/user_test.go

@@ -45,7 +45,7 @@ func TestUserRead(t *testing.T) {
 		End()
 }
 
-func TestUserList(t *testing.T) {
+func TestUserListAll(t *testing.T) {
 	h := newHelper(t)
 
 	h.secCtx()
@@ -58,9 +58,7 @@ func TestUserList(t *testing.T) {
 	h.allow(types.UserPermissionResource.AppendWildcard(), "read")
 
 	aux := struct {
-		Response *struct {
-			Filter *types.UserFilter
-		}
+		Response *struct{ Filter *types.UserFilter }
 	}{}
 
 	h.apiInit().
@@ -78,6 +76,36 @@ func TestUserList(t *testing.T) {
 	h.a.GreaterOrEqual(int(aux.Response.Filter.Count), seedCount)
 }
 
+func TestUserListQuery(t *testing.T) {
+	h := newHelper(t)
+
+	h.secCtx()
+
+	h.allow(types.UserPermissionResource.AppendWildcard(), "read")
+
+	aux := struct {
+		Response *struct{ Filter *types.UserFilter }
+	}{}
+
+	h.apiInit().
+		Debug().
+		Get("/users/").
+		Query("query", h.randEmail()).
+		Query("email", h.randEmail()).
+		Query("name", "John Doe").
+		Query("handle", "jdoe").
+		Query("username", "jdoe").
+		Expect(t).
+		Status(http.StatusOK).
+		Assert(helpers.AssertNoErrors).
+		End().
+		JSON(&aux)
+
+	h.a.NotNil(aux.Response)
+	h.a.NotNil(aux.Response.Filter)
+	h.a.GreaterOrEqual(int(aux.Response.Filter.Count), 0)
+}
+
 func TestUserListWithOneAllowed(t *testing.T) {
 	h := newHelper(t)