Merge pull request #7293 from ashcrow/apiserver_authz_tests

pkg/apiserver/authz_test.go

+/*
+Copyright 2014 Google Inc. All rights reserved.
+
+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 apiserver
+
+import (
+	"testing"
+)
+
+// NewAlwaysAllowAuthorizer must return a struct which implements authorizer.Authorizer
+// and always return nil.
+func TestNewAlwaysAllowAuthorizer(t *testing.T) {
+	aaa := NewAlwaysAllowAuthorizer()
+	if result := aaa.Authorize(nil); result != nil {
+		t.Errorf("AlwaysAllowAuthorizer.Authorize did not return nil. (%s)", result)
+	}
+}
+
+// NewAlwaysDenyAuthorizer must return a struct which implements authorizer.Authorizer
+// and always return an error as everything is forbidden.
+func TestNewAlwaysDenyAuthorizer(t *testing.T) {
+	ada := NewAlwaysDenyAuthorizer()
+	if result := ada.Authorize(nil); result == nil {
+		t.Errorf("AlwaysDenyAuthorizer.Authorize returned nil instead of error.")
+	}
+}
+
+// NewAuthorizerFromAuthorizationConfig has multiple return possibilities. This test
+// validates that errors are returned only when proper.
+func TestNewAuthorizerFromAuthorizationConfig(t *testing.T) {
+	// Unknown modes should return errors
+	if _, err := NewAuthorizerFromAuthorizationConfig("DoesNotExist", ""); err == nil {
+		t.Errorf("NewAuthorizerFromAuthorizationConfig using a fake mode should have returned an error")
+	}
+
+	// ModeAlwaysAllow and ModeAlwaysDeny should return without authorizationPolicyFile
+	// but error if one is given
+	for _, config := range []string{ModeAlwaysAllow, ModeAlwaysDeny} {
+		if _, err := NewAuthorizerFromAuthorizationConfig(config, ""); err != nil {
+			t.Errorf("NewAuthorizerFromAuthorizationConfig with %s returned an error: %s", err, config)
+		}
+		if _, err := NewAuthorizerFromAuthorizationConfig(config, "shoulderror"); err == nil {
+			t.Errorf("NewAuthorizerFromAuthorizationConfig with %s should have returned an error", config)
+		}
+	}
+
+	// ModeABAC requires a policy file
+	if _, err := NewAuthorizerFromAuthorizationConfig(ModeABAC, ""); err == nil {
+		t.Errorf("NewAuthorizerFromAuthorizationConfig using a fake mode should have returned an error")
+	}
+	// ModeABAC should not error if a valid policy path is provided
+	if _, err := NewAuthorizerFromAuthorizationConfig(ModeABAC, "../auth/authorizer/abac/example_policy_file.jsonl"); err != nil {
+		t.Errorf("NewAuthorizerFromAuthorizationConfig errored while using a valid policy file: %s", err)
+	}
+}