mirror of
https://github.com/caddyserver/caddy.git
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110 lines
2.6 KiB
Go
110 lines
2.6 KiB
Go
// Copyright 2015 Light Code Labs, LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package diagnostics
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import (
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"fmt"
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"testing"
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"github.com/google/uuid"
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)
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func TestInit(t *testing.T) {
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reset()
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id := doInit(t) // should not panic
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defer func() {
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if r := recover(); r == nil {
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t.Errorf("Second call to Init should have panicked")
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}
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}()
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Init(id) // should panic
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}
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func TestInitEmptyUUID(t *testing.T) {
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reset()
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defer func() {
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if r := recover(); r == nil {
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t.Errorf("Call to Init with empty UUID should have panicked")
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}
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}()
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Init(uuid.UUID([16]byte{}))
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}
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func TestSet(t *testing.T) {
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reset()
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// should be no-op since we haven't called Init() yet
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Set("test1", "foobar")
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if _, ok := buffer["test"]; ok {
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t.Errorf("Should not have inserted item when not initialized")
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}
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// should work after we've initialized
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doInit(t)
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Set("test1", "foobar")
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val, ok := buffer["test1"]
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if !ok {
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t.Errorf("Expected value to be in buffer, but it wasn't")
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} else if val.(string) != "foobar" {
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t.Errorf("Expected 'foobar', got '%v'", val)
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}
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// should not overfill buffer
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maxBufferItemsTmp := maxBufferItems
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maxBufferItems = 10
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for i := 0; i < maxBufferItems+1; i++ {
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Set(fmt.Sprintf("overfill_%d", i), "foobar")
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}
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if len(buffer) > maxBufferItems {
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t.Errorf("Should not exceed max buffer size (%d); has %d items",
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maxBufferItems, len(buffer))
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}
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maxBufferItems = maxBufferItemsTmp
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// Should overwrite values
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Set("test1", "foobar2")
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val, ok = buffer["test1"]
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if !ok {
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t.Errorf("Expected value to be in buffer, but it wasn't")
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} else if val.(string) != "foobar2" {
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t.Errorf("Expected 'foobar2', got '%v'", val)
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}
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}
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// doInit calls Init() with a valid UUID
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// and returns it.
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func doInit(t *testing.T) uuid.UUID {
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id, err := uuid.Parse(testUUID)
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if err != nil {
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t.Fatalf("Could not make UUID: %v", err)
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}
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Init(id)
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return id
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}
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// reset resets all the lovely package-level state;
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// can be used as a set up function in tests.
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func reset() {
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instanceUUID = uuid.UUID{}
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buffer = make(map[string]interface{})
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bufferItemCount = 0
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updating = false
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enabled = false
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}
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const testUUID = "0b6cfa22-0d4c-11e8-b11b-7a0058e13201"
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