init

pkg/iptables/iptables_test.go

@@ -0,0 +1,101 @@
+// Copyright 2019 the Kilo authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package iptables
+
+import (
+	"testing"
+)
+
+var rules = []Rule{
+	&rule{"filter", "FORWARD", []string{"-s", "10.4.0.0/16", "-j", "ACCEPT"}, nil},
+	&rule{"filter", "FORWARD", []string{"-d", "10.4.0.0/16", "-j", "ACCEPT"}, nil},
+}
+
+func newController() *Controller {
+	return &Controller{
+		rules: make(map[string]Rule),
+	}
+}
+
+func TestSet(t *testing.T) {
+	for _, tc := range []struct {
+		name  string
+		rules []Rule
+	}{
+		{
+			name:  "empty",
+			rules: nil,
+		},
+		{
+			name:  "single",
+			rules: []Rule{rules[0]},
+		},
+		{
+			name:  "multiple",
+			rules: []Rule{rules[0], rules[1]},
+		},
+	} {
+		backend := make(map[string]Rule)
+		controller := newController()
+		controller.client = fakeClient(backend)
+		if err := controller.Set(tc.rules); err != nil {
+			t.Fatalf("test case %q: got unexpected error: %v", tc.name, err)
+		}
+		for _, r := range tc.rules {
+			r1 := backend[r.String()]
+			r2 := controller.rules[r.String()]
+			if r.String() != r1.String() || r.String() != r2.String() {
+				t.Errorf("test case %q: expected all rules to be equal: expected %v, got %v and %v", tc.name, r, r1, r2)
+			}
+		}
+	}
+}
+
+func TestCleanUp(t *testing.T) {
+	for _, tc := range []struct {
+		name  string
+		rules []Rule
+	}{
+		{
+			name:  "empty",
+			rules: nil,
+		},
+		{
+			name:  "single",
+			rules: []Rule{rules[0]},
+		},
+		{
+			name:  "multiple",
+			rules: []Rule{rules[0], rules[1]},
+		},
+	} {
+		backend := make(map[string]Rule)
+		controller := newController()
+		controller.client = fakeClient(backend)
+		if err := controller.Set(tc.rules); err != nil {
+			t.Fatalf("test case %q: Set should not fail: %v", tc.name, err)
+		}
+		if err := controller.CleanUp(); err != nil {
+			t.Errorf("test case %q: got unexpected error: %v", tc.name, err)
+		}
+		for _, r := range tc.rules {
+			r1 := backend[r.String()]
+			r2 := controller.rules[r.String()]
+			if r1 != nil || r2 != nil {
+				t.Errorf("test case %q: expected all rules to be nil: expected got %v and %v", tc.name, r1, r2)
+			}
+		}
+	}
+}