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Diffstat (limited to 'caddyconfig/caddyfile/lexer_test.go')
| -rwxr-xr-x | caddyconfig/caddyfile/lexer_test.go | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/caddyconfig/caddyfile/lexer_test.go b/caddyconfig/caddyfile/lexer_test.go new file mode 100755 index 0000000..f9a843c --- /dev/null +++ b/caddyconfig/caddyfile/lexer_test.go @@ -0,0 +1,196 @@ +// Copyright 2015 Light Code Labs, LLC +// +// 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 ( + "log" + "strings" + "testing" +) + +type lexerTestCase struct { + input string + expected []Token +} + +func TestLexer(t *testing.T) { + testCases := []lexerTestCase{ + { + input: `host:123`, + expected: []Token{ + {Line: 1, Text: "host:123"}, + }, + }, + { + input: `host:123 + + directive`, + expected: []Token{ + {Line: 1, Text: "host:123"}, + {Line: 3, Text: "directive"}, + }, + }, + { + input: `host:123 { + directive + }`, + expected: []Token{ + {Line: 1, Text: "host:123"}, + {Line: 1, Text: "{"}, + {Line: 2, Text: "directive"}, + {Line: 3, Text: "}"}, + }, + }, + { + input: `host:123 { directive }`, + expected: []Token{ + {Line: 1, Text: "host:123"}, + {Line: 1, Text: "{"}, + {Line: 1, Text: "directive"}, + {Line: 1, Text: "}"}, + }, + }, + { + input: `host:123 { + #comment + directive + # comment + foobar # another comment + }`, + expected: []Token{ + {Line: 1, Text: "host:123"}, + {Line: 1, Text: "{"}, + {Line: 3, Text: "directive"}, + {Line: 5, Text: "foobar"}, + {Line: 6, Text: "}"}, + }, + }, + { + input: `a "quoted value" b + foobar`, + expected: []Token{ + {Line: 1, Text: "a"}, + {Line: 1, Text: "quoted value"}, + {Line: 1, Text: "b"}, + {Line: 2, Text: "foobar"}, + }, + }, + { + input: `A "quoted \"value\" inside" B`, + expected: []Token{ + {Line: 1, Text: "A"}, + {Line: 1, Text: `quoted "value" inside`}, + {Line: 1, Text: "B"}, + }, + }, + { + input: "A \"newline \\\ninside\" quotes", + expected: []Token{ + {Line: 1, Text: "A"}, + {Line: 1, Text: "newline \ninside"}, + {Line: 2, Text: "quotes"}, + }, + }, + { + input: `"don't\escape"`, + expected: []Token{ + {Line: 1, Text: `don't\escape`}, + }, + }, + { + input: `"don't\\escape"`, + expected: []Token{ + {Line: 1, Text: `don't\\escape`}, + }, + }, + { + input: `A "quoted value with line + break inside" { + foobar + }`, + expected: []Token{ + {Line: 1, Text: "A"}, + {Line: 1, Text: "quoted value with line\n\t\t\t\t\tbreak inside"}, + {Line: 2, Text: "{"}, + {Line: 3, Text: "foobar"}, + {Line: 4, Text: "}"}, + }, + }, + { + input: `"C:\php\php-cgi.exe"`, + expected: []Token{ + {Line: 1, Text: `C:\php\php-cgi.exe`}, + }, + }, + { + input: `empty "" string`, + expected: []Token{ + {Line: 1, Text: `empty`}, + {Line: 1, Text: ``}, + {Line: 1, Text: `string`}, + }, + }, + { + input: "skip those\r\nCR characters", + expected: []Token{ + {Line: 1, Text: "skip"}, + {Line: 1, Text: "those"}, + {Line: 2, Text: "CR"}, + {Line: 2, Text: "characters"}, + }, + }, + { + input: "\xEF\xBB\xBF:8080", // test with leading byte order mark + expected: []Token{ + {Line: 1, Text: ":8080"}, + }, + }, + } + + for i, testCase := range testCases { + actual := tokenize(testCase.input) + lexerCompare(t, i, testCase.expected, actual) + } +} + +func tokenize(input string) (tokens []Token) { + l := lexer{} + if err := l.load(strings.NewReader(input)); err != nil { + log.Printf("[ERROR] load failed: %v", err) + } + for l.next() { + tokens = append(tokens, l.token) + } + return +} + +func lexerCompare(t *testing.T, n int, expected, actual []Token) { + if len(expected) != len(actual) { + t.Errorf("Test case %d: expected %d token(s) but got %d", n, len(expected), len(actual)) + } + + for i := 0; i < len(actual) && i < len(expected); i++ { + if actual[i].Line != expected[i].Line { + t.Errorf("Test case %d token %d ('%s'): expected line %d but was line %d", + n, i, expected[i].Text, expected[i].Line, actual[i].Line) + break + } + if actual[i].Text != expected[i].Text { + t.Errorf("Test case %d token %d: expected text '%s' but was '%s'", + n, i, expected[i].Text, actual[i].Text) + break + } + } +} |