diff options
Diffstat (limited to 'caddyconfig/caddyfile/dispenser_test.go')
-rwxr-xr-x | caddyconfig/caddyfile/dispenser_test.go | 316 |
1 files changed, 316 insertions, 0 deletions
diff --git a/caddyconfig/caddyfile/dispenser_test.go b/caddyconfig/caddyfile/dispenser_test.go new file mode 100755 index 0000000..9860bed --- /dev/null +++ b/caddyconfig/caddyfile/dispenser_test.go @@ -0,0 +1,316 @@ +// 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 caddyfile + +import ( + "io" + "log" + "reflect" + "strings" + "testing" +) + +func TestDispenser_Val_Next(t *testing.T) { + input := `host:port + dir1 arg1 + dir2 arg2 arg3 + dir3` + d := newTestDispenser(input) + + if val := d.Val(); val != "" { + t.Fatalf("Val(): Should return empty string when no token loaded; got '%s'", val) + } + + assertNext := func(shouldLoad bool, expectedCursor int, expectedVal string) { + if loaded := d.Next(); loaded != shouldLoad { + t.Errorf("Next(): Expected %v but got %v instead (val '%s')", shouldLoad, loaded, d.Val()) + } + if d.cursor != expectedCursor { + t.Errorf("Expected cursor to be %d, but was %d", expectedCursor, d.cursor) + } + if d.nesting != 0 { + t.Errorf("Nesting should be 0, was %d instead", d.nesting) + } + if val := d.Val(); val != expectedVal { + t.Errorf("Val(): Expected '%s' but got '%s'", expectedVal, val) + } + } + + assertNext(true, 0, "host:port") + assertNext(true, 1, "dir1") + assertNext(true, 2, "arg1") + assertNext(true, 3, "dir2") + assertNext(true, 4, "arg2") + assertNext(true, 5, "arg3") + assertNext(true, 6, "dir3") + // Note: This next test simply asserts existing behavior. + // If desired, we may wish to empty the token value after + // reading past the EOF. Open an issue if you want this change. + assertNext(false, 6, "dir3") +} + +func TestDispenser_NextArg(t *testing.T) { + input := `dir1 arg1 + dir2 arg2 arg3 + dir3` + d := newTestDispenser(input) + + assertNext := func(shouldLoad bool, expectedVal string, expectedCursor int) { + if d.Next() != shouldLoad { + t.Errorf("Next(): Should load token but got false instead (val: '%s')", d.Val()) + } + if d.cursor != expectedCursor { + t.Errorf("Next(): Expected cursor to be at %d, but it was %d", expectedCursor, d.cursor) + } + if val := d.Val(); val != expectedVal { + t.Errorf("Val(): Expected '%s' but got '%s'", expectedVal, val) + } + } + + assertNextArg := func(expectedVal string, loadAnother bool, expectedCursor int) { + if !d.NextArg() { + t.Error("NextArg(): Should load next argument but got false instead") + } + if d.cursor != expectedCursor { + t.Errorf("NextArg(): Expected cursor to be at %d, but it was %d", expectedCursor, d.cursor) + } + if val := d.Val(); val != expectedVal { + t.Errorf("Val(): Expected '%s' but got '%s'", expectedVal, val) + } + if !loadAnother { + if d.NextArg() { + t.Fatalf("NextArg(): Should NOT load another argument, but got true instead (val: '%s')", d.Val()) + } + if d.cursor != expectedCursor { + t.Errorf("NextArg(): Expected cursor to remain at %d, but it was %d", expectedCursor, d.cursor) + } + } + } + + assertNext(true, "dir1", 0) + assertNextArg("arg1", false, 1) + assertNext(true, "dir2", 2) + assertNextArg("arg2", true, 3) + assertNextArg("arg3", false, 4) + assertNext(true, "dir3", 5) + assertNext(false, "dir3", 5) +} + +func TestDispenser_NextLine(t *testing.T) { + input := `host:port + dir1 arg1 + dir2 arg2 arg3` + d := newTestDispenser(input) + + assertNextLine := func(shouldLoad bool, expectedVal string, expectedCursor int) { + if d.NextLine() != shouldLoad { + t.Errorf("NextLine(): Should load token but got false instead (val: '%s')", d.Val()) + } + if d.cursor != expectedCursor { + t.Errorf("NextLine(): Expected cursor to be %d, instead was %d", expectedCursor, d.cursor) + } + if val := d.Val(); val != expectedVal { + t.Errorf("Val(): Expected '%s' but got '%s'", expectedVal, val) + } + } + + assertNextLine(true, "host:port", 0) + assertNextLine(true, "dir1", 1) + assertNextLine(false, "dir1", 1) + d.Next() // arg1 + assertNextLine(true, "dir2", 3) + assertNextLine(false, "dir2", 3) + d.Next() // arg2 + assertNextLine(false, "arg2", 4) + d.Next() // arg3 + assertNextLine(false, "arg3", 5) +} + +func TestDispenser_NextBlock(t *testing.T) { + input := `foobar1 { + sub1 arg1 + sub2 + } + foobar2 { + }` + d := newTestDispenser(input) + + assertNextBlock := func(shouldLoad bool, expectedCursor, expectedNesting int) { + if loaded := d.NextBlock(); loaded != shouldLoad { + t.Errorf("NextBlock(): Should return %v but got %v", shouldLoad, loaded) + } + if d.cursor != expectedCursor { + t.Errorf("NextBlock(): Expected cursor to be %d, was %d", expectedCursor, d.cursor) + } + if d.nesting != expectedNesting { + t.Errorf("NextBlock(): Nesting should be %d, not %d", expectedNesting, d.nesting) + } + } + + assertNextBlock(false, -1, 0) + d.Next() // foobar1 + assertNextBlock(true, 2, 1) + assertNextBlock(true, 3, 1) + assertNextBlock(true, 4, 1) + assertNextBlock(false, 5, 0) + d.Next() // foobar2 + assertNextBlock(false, 8, 0) // empty block is as if it didn't exist +} + +func TestDispenser_Args(t *testing.T) { + var s1, s2, s3 string + input := `dir1 arg1 arg2 arg3 + dir2 arg4 arg5 + dir3 arg6 arg7 + dir4` + d := newTestDispenser(input) + + d.Next() // dir1 + + // As many strings as arguments + if all := d.Args(&s1, &s2, &s3); !all { + t.Error("Args(): Expected true, got false") + } + if s1 != "arg1" { + t.Errorf("Args(): Expected s1 to be 'arg1', got '%s'", s1) + } + if s2 != "arg2" { + t.Errorf("Args(): Expected s2 to be 'arg2', got '%s'", s2) + } + if s3 != "arg3" { + t.Errorf("Args(): Expected s3 to be 'arg3', got '%s'", s3) + } + + d.Next() // dir2 + + // More strings than arguments + if all := d.Args(&s1, &s2, &s3); all { + t.Error("Args(): Expected false, got true") + } + if s1 != "arg4" { + t.Errorf("Args(): Expected s1 to be 'arg4', got '%s'", s1) + } + if s2 != "arg5" { + t.Errorf("Args(): Expected s2 to be 'arg5', got '%s'", s2) + } + if s3 != "arg3" { + t.Errorf("Args(): Expected s3 to be unchanged ('arg3'), instead got '%s'", s3) + } + + // (quick cursor check just for kicks and giggles) + if d.cursor != 6 { + t.Errorf("Cursor should be 6, but is %d", d.cursor) + } + + d.Next() // dir3 + + // More arguments than strings + if all := d.Args(&s1); !all { + t.Error("Args(): Expected true, got false") + } + if s1 != "arg6" { + t.Errorf("Args(): Expected s1 to be 'arg6', got '%s'", s1) + } + + d.Next() // dir4 + + // No arguments or strings + if all := d.Args(); !all { + t.Error("Args(): Expected true, got false") + } + + // No arguments but at least one string + if all := d.Args(&s1); all { + t.Error("Args(): Expected false, got true") + } +} + +func TestDispenser_RemainingArgs(t *testing.T) { + input := `dir1 arg1 arg2 arg3 + dir2 arg4 arg5 + dir3 arg6 { arg7 + dir4` + d := newTestDispenser(input) + + d.Next() // dir1 + + args := d.RemainingArgs() + if expected := []string{"arg1", "arg2", "arg3"}; !reflect.DeepEqual(args, expected) { + t.Errorf("RemainingArgs(): Expected %v, got %v", expected, args) + } + + d.Next() // dir2 + + args = d.RemainingArgs() + if expected := []string{"arg4", "arg5"}; !reflect.DeepEqual(args, expected) { + t.Errorf("RemainingArgs(): Expected %v, got %v", expected, args) + } + + d.Next() // dir3 + + args = d.RemainingArgs() + if expected := []string{"arg6"}; !reflect.DeepEqual(args, expected) { + t.Errorf("RemainingArgs(): Expected %v, got %v", expected, args) + } + + d.Next() // { + d.Next() // arg7 + d.Next() // dir4 + + args = d.RemainingArgs() + if len(args) != 0 { + t.Errorf("RemainingArgs(): Expected %v, got %v", []string{}, args) + } +} + +func TestDispenser_ArgErr_Err(t *testing.T) { + input := `dir1 { + } + dir2 arg1 arg2` + d := newTestDispenser(input) + + d.cursor = 1 // { + + if err := d.ArgErr(); err == nil || !strings.Contains(err.Error(), "{") { + t.Errorf("ArgErr(): Expected an error message with { in it, but got '%v'", err) + } + + d.cursor = 5 // arg2 + + if err := d.ArgErr(); err == nil || !strings.Contains(err.Error(), "arg2") { + t.Errorf("ArgErr(): Expected an error message with 'arg2' in it; got '%v'", err) + } + + err := d.Err("foobar") + if err == nil { + t.Fatalf("Err(): Expected an error, got nil") + } + + if !strings.Contains(err.Error(), "Testfile:3") { + t.Errorf("Expected error message with filename:line in it; got '%v'", err) + } + + if !strings.Contains(err.Error(), "foobar") { + t.Errorf("Expected error message with custom message in it ('foobar'); got '%v'", err) + } +} + +func newTestDispenser(input string) *Dispenser { + tokens, err := allTokens(strings.NewReader(input)) + if err != nil && err != io.EOF { + log.Fatalf("getting all tokens from input: %v", err) + } + return NewDispenser("Testfile", tokens) +} |