mirror of https://github.com/caddyserver/caddy
314 lines
8.6 KiB
Go
314 lines
8.6 KiB
Go
// Copyright 2015 Matthew Holt and The Caddy Authors
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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 caddyfile
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import (
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"errors"
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"reflect"
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"strings"
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"testing"
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)
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func TestDispenser_Val_Next(t *testing.T) {
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input := `host:port
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dir1 arg1
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dir2 arg2 arg3
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dir3`
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d := NewTestDispenser(input)
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if val := d.Val(); val != "" {
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t.Fatalf("Val(): Should return empty string when no token loaded; got '%s'", val)
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}
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assertNext := func(shouldLoad bool, expectedCursor int, expectedVal string) {
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if loaded := d.Next(); loaded != shouldLoad {
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t.Errorf("Next(): Expected %v but got %v instead (val '%s')", shouldLoad, loaded, d.Val())
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}
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if d.cursor != expectedCursor {
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t.Errorf("Expected cursor to be %d, but was %d", expectedCursor, d.cursor)
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}
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if d.nesting != 0 {
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t.Errorf("Nesting should be 0, was %d instead", d.nesting)
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}
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if val := d.Val(); val != expectedVal {
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t.Errorf("Val(): Expected '%s' but got '%s'", expectedVal, val)
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}
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}
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assertNext(true, 0, "host:port")
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assertNext(true, 1, "dir1")
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assertNext(true, 2, "arg1")
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assertNext(true, 3, "dir2")
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assertNext(true, 4, "arg2")
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assertNext(true, 5, "arg3")
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assertNext(true, 6, "dir3")
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// Note: This next test simply asserts existing behavior.
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// If desired, we may wish to empty the token value after
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// reading past the EOF. Open an issue if you want this change.
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assertNext(false, 6, "dir3")
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}
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func TestDispenser_NextArg(t *testing.T) {
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input := `dir1 arg1
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dir2 arg2 arg3
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dir3`
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d := NewTestDispenser(input)
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assertNext := func(shouldLoad bool, expectedVal string, expectedCursor int) {
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if d.Next() != shouldLoad {
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t.Errorf("Next(): Should load token but got false instead (val: '%s')", d.Val())
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}
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if d.cursor != expectedCursor {
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t.Errorf("Next(): Expected cursor to be at %d, but it was %d", expectedCursor, d.cursor)
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}
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if val := d.Val(); val != expectedVal {
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t.Errorf("Val(): Expected '%s' but got '%s'", expectedVal, val)
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}
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}
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assertNextArg := func(expectedVal string, loadAnother bool, expectedCursor int) {
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if !d.NextArg() {
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t.Error("NextArg(): Should load next argument but got false instead")
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}
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if d.cursor != expectedCursor {
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t.Errorf("NextArg(): Expected cursor to be at %d, but it was %d", expectedCursor, d.cursor)
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}
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if val := d.Val(); val != expectedVal {
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t.Errorf("Val(): Expected '%s' but got '%s'", expectedVal, val)
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}
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if !loadAnother {
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if d.NextArg() {
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t.Fatalf("NextArg(): Should NOT load another argument, but got true instead (val: '%s')", d.Val())
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}
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if d.cursor != expectedCursor {
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t.Errorf("NextArg(): Expected cursor to remain at %d, but it was %d", expectedCursor, d.cursor)
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}
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}
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}
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assertNext(true, "dir1", 0)
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assertNextArg("arg1", false, 1)
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assertNext(true, "dir2", 2)
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assertNextArg("arg2", true, 3)
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assertNextArg("arg3", false, 4)
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assertNext(true, "dir3", 5)
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assertNext(false, "dir3", 5)
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}
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func TestDispenser_NextLine(t *testing.T) {
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input := `host:port
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dir1 arg1
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dir2 arg2 arg3`
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d := NewTestDispenser(input)
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assertNextLine := func(shouldLoad bool, expectedVal string, expectedCursor int) {
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if d.NextLine() != shouldLoad {
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t.Errorf("NextLine(): Should load token but got false instead (val: '%s')", d.Val())
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}
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if d.cursor != expectedCursor {
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t.Errorf("NextLine(): Expected cursor to be %d, instead was %d", expectedCursor, d.cursor)
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}
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if val := d.Val(); val != expectedVal {
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t.Errorf("Val(): Expected '%s' but got '%s'", expectedVal, val)
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}
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}
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assertNextLine(true, "host:port", 0)
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assertNextLine(true, "dir1", 1)
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assertNextLine(false, "dir1", 1)
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d.Next() // arg1
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assertNextLine(true, "dir2", 3)
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assertNextLine(false, "dir2", 3)
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d.Next() // arg2
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assertNextLine(false, "arg2", 4)
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d.Next() // arg3
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assertNextLine(false, "arg3", 5)
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}
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func TestDispenser_NextBlock(t *testing.T) {
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input := `foobar1 {
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sub1 arg1
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sub2
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}
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foobar2 {
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}`
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d := NewTestDispenser(input)
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assertNextBlock := func(shouldLoad bool, expectedCursor, expectedNesting int) {
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if loaded := d.NextBlock(0); loaded != shouldLoad {
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t.Errorf("NextBlock(): Should return %v but got %v", shouldLoad, loaded)
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}
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if d.cursor != expectedCursor {
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t.Errorf("NextBlock(): Expected cursor to be %d, was %d", expectedCursor, d.cursor)
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}
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if d.nesting != expectedNesting {
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t.Errorf("NextBlock(): Nesting should be %d, not %d", expectedNesting, d.nesting)
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}
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}
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assertNextBlock(false, -1, 0)
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d.Next() // foobar1
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assertNextBlock(true, 2, 1)
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assertNextBlock(true, 3, 1)
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assertNextBlock(true, 4, 1)
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assertNextBlock(false, 5, 0)
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d.Next() // foobar2
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assertNextBlock(false, 8, 0) // empty block is as if it didn't exist
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}
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func TestDispenser_Args(t *testing.T) {
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var s1, s2, s3 string
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input := `dir1 arg1 arg2 arg3
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dir2 arg4 arg5
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dir3 arg6 arg7
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dir4`
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d := NewTestDispenser(input)
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d.Next() // dir1
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// As many strings as arguments
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if all := d.Args(&s1, &s2, &s3); !all {
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t.Error("Args(): Expected true, got false")
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}
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if s1 != "arg1" {
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t.Errorf("Args(): Expected s1 to be 'arg1', got '%s'", s1)
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}
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if s2 != "arg2" {
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t.Errorf("Args(): Expected s2 to be 'arg2', got '%s'", s2)
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}
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if s3 != "arg3" {
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t.Errorf("Args(): Expected s3 to be 'arg3', got '%s'", s3)
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}
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d.Next() // dir2
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// More strings than arguments
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if all := d.Args(&s1, &s2, &s3); all {
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t.Error("Args(): Expected false, got true")
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}
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if s1 != "arg4" {
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t.Errorf("Args(): Expected s1 to be 'arg4', got '%s'", s1)
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}
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if s2 != "arg5" {
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t.Errorf("Args(): Expected s2 to be 'arg5', got '%s'", s2)
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}
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if s3 != "arg3" {
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t.Errorf("Args(): Expected s3 to be unchanged ('arg3'), instead got '%s'", s3)
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}
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// (quick cursor check just for kicks and giggles)
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if d.cursor != 6 {
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t.Errorf("Cursor should be 6, but is %d", d.cursor)
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}
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d.Next() // dir3
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// More arguments than strings
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if all := d.Args(&s1); !all {
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t.Error("Args(): Expected true, got false")
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}
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if s1 != "arg6" {
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t.Errorf("Args(): Expected s1 to be 'arg6', got '%s'", s1)
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}
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d.Next() // dir4
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// No arguments or strings
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if all := d.Args(); !all {
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t.Error("Args(): Expected true, got false")
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}
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// No arguments but at least one string
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if all := d.Args(&s1); all {
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t.Error("Args(): Expected false, got true")
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}
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}
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func TestDispenser_RemainingArgs(t *testing.T) {
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input := `dir1 arg1 arg2 arg3
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dir2 arg4 arg5
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dir3 arg6 { arg7
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dir4`
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d := NewTestDispenser(input)
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d.Next() // dir1
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args := d.RemainingArgs()
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if expected := []string{"arg1", "arg2", "arg3"}; !reflect.DeepEqual(args, expected) {
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t.Errorf("RemainingArgs(): Expected %v, got %v", expected, args)
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}
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d.Next() // dir2
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args = d.RemainingArgs()
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if expected := []string{"arg4", "arg5"}; !reflect.DeepEqual(args, expected) {
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t.Errorf("RemainingArgs(): Expected %v, got %v", expected, args)
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}
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d.Next() // dir3
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args = d.RemainingArgs()
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if expected := []string{"arg6"}; !reflect.DeepEqual(args, expected) {
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t.Errorf("RemainingArgs(): Expected %v, got %v", expected, args)
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}
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d.Next() // {
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d.Next() // arg7
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d.Next() // dir4
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args = d.RemainingArgs()
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if len(args) != 0 {
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t.Errorf("RemainingArgs(): Expected %v, got %v", []string{}, args)
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}
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}
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func TestDispenser_ArgErr_Err(t *testing.T) {
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input := `dir1 {
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}
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dir2 arg1 arg2`
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d := NewTestDispenser(input)
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d.cursor = 1 // {
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if err := d.ArgErr(); err == nil || !strings.Contains(err.Error(), "{") {
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t.Errorf("ArgErr(): Expected an error message with { in it, but got '%v'", err)
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}
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d.cursor = 5 // arg2
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if err := d.ArgErr(); err == nil || !strings.Contains(err.Error(), "arg2") {
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t.Errorf("ArgErr(): Expected an error message with 'arg2' in it; got '%v'", err)
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}
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err := d.Err("foobar")
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if err == nil {
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t.Fatalf("Err(): Expected an error, got nil")
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}
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if !strings.Contains(err.Error(), "Testfile:3") {
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t.Errorf("Expected error message with filename:line in it; got '%v'", err)
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}
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if !strings.Contains(err.Error(), "foobar") {
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t.Errorf("Expected error message with custom message in it ('foobar'); got '%v'", err)
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}
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ErrBarIsFull := errors.New("bar is full")
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bookingError := d.Errf("unable to reserve: %w", ErrBarIsFull)
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if !errors.Is(bookingError, ErrBarIsFull) {
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t.Errorf("Errf(): should be able to unwrap the error chain")
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}
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}
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