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caddy/dynamicconfig_test.go

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// Copyright 2015 Matthew Holt and The Caddy 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 caddy
import (
"encoding/json"
"net/http"
"net/http/httptest"
"reflect"
"strings"
"testing"
)
func TestMutateConfig(t *testing.T) {
// each test is performed in sequence, so
// each change builds on the previous ones;
// the config is not reset between tests
for i, tc := range []struct {
method string
path string // rawConfigKey will be prepended
payload string
expect string // JSON representation of what the whole config is expected to be after the request
shouldErr bool
}{
{
method: "POST",
path: "",
payload: `{"foo": "bar", "list": ["a", "b", "c"]}`, // starting value
expect: `{"foo": "bar", "list": ["a", "b", "c"]}`,
},
{
method: "POST",
path: "/foo",
payload: `"jet"`,
expect: `{"foo": "jet", "list": ["a", "b", "c"]}`,
},
{
method: "POST",
path: "/bar",
payload: `{"aa": "bb", "qq": "zz"}`,
expect: `{"foo": "jet", "bar": {"aa": "bb", "qq": "zz"}, "list": ["a", "b", "c"]}`,
},
{
method: "DELETE",
path: "/bar/qq",
expect: `{"foo": "jet", "bar": {"aa": "bb"}, "list": ["a", "b", "c"]}`,
},
{
method: "POST",
path: "/list",
payload: `"e"`,
expect: `{"foo": "jet", "bar": {"aa": "bb"}, "list": ["a", "b", "c", "e"]}`,
},
{
method: "PUT",
path: "/list/3",
payload: `"d"`,
expect: `{"foo": "jet", "bar": {"aa": "bb"}, "list": ["a", "b", "c", "d", "e"]}`,
},
{
method: "DELETE",
path: "/list/3",
expect: `{"foo": "jet", "bar": {"aa": "bb"}, "list": ["a", "b", "c", "e"]}`,
},
{
method: "PATCH",
path: "/list/3",
payload: `"d"`,
expect: `{"foo": "jet", "bar": {"aa": "bb"}, "list": ["a", "b", "c", "d"]}`,
},
} {
req, err := http.NewRequest(tc.method, rawConfigKey+tc.path, strings.NewReader(tc.payload))
if err != nil {
t.Fatalf("Test %d: making test request: %v", i, err)
}
req.Header.Set("Content-Type", "application/json")
w := httptest.NewRecorder()
err = mutateConfig(w, req)
if tc.shouldErr && err == nil {
t.Fatalf("Test %d: Expected error return value, but got: %v", i, err)
}
if !tc.shouldErr && err != nil {
t.Fatalf("Test %d: Should not have had error return value, but got: %v", i, err)
}
if tc.shouldErr && w.Code == http.StatusOK {
t.Fatalf("Test %d: Expected error, but got HTTP %d: %s",
i, w.Code, w.Body.String())
}
if !tc.shouldErr && w.Code != http.StatusOK {
t.Fatalf("Test %d: Should not have errored, but got HTTP %d: %s",
i, w.Code, w.Body.String())
}
// decode the expected config so we can do a convenient DeepEqual
var expectedDecoded interface{}
err = json.Unmarshal([]byte(tc.expect), &expectedDecoded)
if err != nil {
t.Fatalf("Test %d: Unmarshaling expected config: %v", i, err)
}
// make sure the resulting config is as we expect it
if !reflect.DeepEqual(rawCfg[rawConfigKey], expectedDecoded) {
t.Fatalf("Test %d:\nExpected:\n\t%#v\nActual:\n\t%#v",
i, expectedDecoded, rawCfg[rawConfigKey])
}
}
}