| // Copyright 2014 Google Inc. All rights reserved. |
| // |
| // 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 parser |
| |
| import ( |
| "bytes" |
| "reflect" |
| "testing" |
| "text/scanner" |
| ) |
| |
| func mkpos(offset, line, column int) scanner.Position { |
| return scanner.Position{ |
| Offset: offset, |
| Line: line, |
| Column: column, |
| } |
| } |
| |
| var validParseTestCases = []struct { |
| input string |
| defs []Definition |
| comments []*CommentGroup |
| }{ |
| {` |
| foo {} |
| `, |
| []Definition{ |
| &Module{ |
| Type: "foo", |
| TypePos: mkpos(3, 2, 3), |
| Map: Map{ |
| LBracePos: mkpos(7, 2, 7), |
| RBracePos: mkpos(8, 2, 8), |
| }, |
| }, |
| }, |
| nil, |
| }, |
| |
| {` |
| foo { |
| name: "abc", |
| } |
| `, |
| []Definition{ |
| &Module{ |
| Type: "foo", |
| TypePos: mkpos(3, 2, 3), |
| Map: Map{ |
| LBracePos: mkpos(7, 2, 7), |
| RBracePos: mkpos(27, 4, 3), |
| Properties: []*Property{ |
| { |
| Name: "name", |
| NamePos: mkpos(12, 3, 4), |
| ColonPos: mkpos(16, 3, 8), |
| Value: &String{ |
| LiteralPos: mkpos(18, 3, 10), |
| Value: "abc", |
| }, |
| }, |
| }, |
| }, |
| }, |
| }, |
| nil, |
| }, |
| |
| {` |
| foo { |
| isGood: true, |
| } |
| `, |
| []Definition{ |
| &Module{ |
| Type: "foo", |
| TypePos: mkpos(3, 2, 3), |
| Map: Map{ |
| LBracePos: mkpos(7, 2, 7), |
| RBracePos: mkpos(28, 4, 3), |
| Properties: []*Property{ |
| { |
| Name: "isGood", |
| NamePos: mkpos(12, 3, 4), |
| ColonPos: mkpos(18, 3, 10), |
| Value: &Bool{ |
| LiteralPos: mkpos(20, 3, 12), |
| Value: true, |
| }, |
| }, |
| }, |
| }, |
| }, |
| }, |
| nil, |
| }, |
| |
| {` |
| foo { |
| stuff: ["asdf", "jkl;", "qwert", |
| "uiop", "bnm,"] |
| } |
| `, |
| []Definition{ |
| &Module{ |
| Type: "foo", |
| TypePos: mkpos(3, 2, 3), |
| Map: Map{ |
| LBracePos: mkpos(7, 2, 7), |
| RBracePos: mkpos(67, 5, 3), |
| Properties: []*Property{ |
| { |
| Name: "stuff", |
| NamePos: mkpos(12, 3, 4), |
| ColonPos: mkpos(17, 3, 9), |
| Value: &List{ |
| LBracePos: mkpos(19, 3, 11), |
| RBracePos: mkpos(63, 4, 19), |
| Values: []Expression{ |
| &String{ |
| LiteralPos: mkpos(20, 3, 12), |
| Value: "asdf", |
| }, |
| &String{ |
| LiteralPos: mkpos(28, 3, 20), |
| Value: "jkl;", |
| }, |
| &String{ |
| LiteralPos: mkpos(36, 3, 28), |
| Value: "qwert", |
| }, |
| &String{ |
| LiteralPos: mkpos(49, 4, 5), |
| Value: "uiop", |
| }, |
| &String{ |
| LiteralPos: mkpos(57, 4, 13), |
| Value: "bnm,", |
| }, |
| }, |
| }, |
| }, |
| }, |
| }, |
| }, |
| }, |
| nil, |
| }, |
| |
| {` |
| foo { |
| stuff: { |
| isGood: true, |
| name: "bar" |
| } |
| } |
| `, |
| []Definition{ |
| &Module{ |
| Type: "foo", |
| TypePos: mkpos(3, 2, 3), |
| Map: Map{ |
| LBracePos: mkpos(7, 2, 7), |
| RBracePos: mkpos(62, 7, 3), |
| Properties: []*Property{ |
| { |
| Name: "stuff", |
| NamePos: mkpos(12, 3, 4), |
| ColonPos: mkpos(17, 3, 9), |
| Value: &Map{ |
| LBracePos: mkpos(19, 3, 11), |
| RBracePos: mkpos(58, 6, 4), |
| Properties: []*Property{ |
| { |
| Name: "isGood", |
| NamePos: mkpos(25, 4, 5), |
| ColonPos: mkpos(31, 4, 11), |
| Value: &Bool{ |
| LiteralPos: mkpos(33, 4, 13), |
| Value: true, |
| }, |
| }, |
| { |
| Name: "name", |
| NamePos: mkpos(43, 5, 5), |
| ColonPos: mkpos(47, 5, 9), |
| Value: &String{ |
| LiteralPos: mkpos(49, 5, 11), |
| Value: "bar", |
| }, |
| }, |
| }, |
| }, |
| }, |
| }, |
| }, |
| }, |
| }, |
| nil, |
| }, |
| |
| {` |
| // comment1 |
| foo /* test */ { |
| // comment2 |
| isGood: true, // comment3 |
| } |
| `, |
| []Definition{ |
| &Module{ |
| Type: "foo", |
| TypePos: mkpos(17, 3, 3), |
| Map: Map{ |
| LBracePos: mkpos(32, 3, 18), |
| RBracePos: mkpos(81, 6, 3), |
| Properties: []*Property{ |
| { |
| Name: "isGood", |
| NamePos: mkpos(52, 5, 4), |
| ColonPos: mkpos(58, 5, 10), |
| Value: &Bool{ |
| LiteralPos: mkpos(60, 5, 12), |
| Value: true, |
| }, |
| }, |
| }, |
| }, |
| }, |
| }, |
| []*CommentGroup{ |
| { |
| Comments: []*Comment{ |
| &Comment{ |
| Comment: []string{"// comment1"}, |
| Slash: mkpos(3, 2, 3), |
| }, |
| }, |
| }, |
| { |
| Comments: []*Comment{ |
| &Comment{ |
| Comment: []string{"/* test */"}, |
| Slash: mkpos(21, 3, 7), |
| }, |
| }, |
| }, |
| { |
| Comments: []*Comment{ |
| &Comment{ |
| Comment: []string{"// comment2"}, |
| Slash: mkpos(37, 4, 4), |
| }, |
| }, |
| }, |
| { |
| Comments: []*Comment{ |
| &Comment{ |
| Comment: []string{"// comment3"}, |
| Slash: mkpos(67, 5, 19), |
| }, |
| }, |
| }, |
| }, |
| }, |
| |
| {` |
| foo { |
| name: "abc", |
| } |
| |
| bar { |
| name: "def", |
| } |
| `, |
| []Definition{ |
| &Module{ |
| Type: "foo", |
| TypePos: mkpos(3, 2, 3), |
| Map: Map{ |
| LBracePos: mkpos(7, 2, 7), |
| RBracePos: mkpos(27, 4, 3), |
| Properties: []*Property{ |
| { |
| Name: "name", |
| NamePos: mkpos(12, 3, 4), |
| ColonPos: mkpos(16, 3, 8), |
| Value: &String{ |
| LiteralPos: mkpos(18, 3, 10), |
| Value: "abc", |
| }, |
| }, |
| }, |
| }, |
| }, |
| &Module{ |
| Type: "bar", |
| TypePos: mkpos(32, 6, 3), |
| Map: Map{ |
| LBracePos: mkpos(36, 6, 7), |
| RBracePos: mkpos(56, 8, 3), |
| Properties: []*Property{ |
| { |
| Name: "name", |
| NamePos: mkpos(41, 7, 4), |
| ColonPos: mkpos(45, 7, 8), |
| Value: &String{ |
| LiteralPos: mkpos(47, 7, 10), |
| Value: "def", |
| }, |
| }, |
| }, |
| }, |
| }, |
| }, |
| nil, |
| }, |
| {` |
| foo = "stuff" |
| bar = foo |
| baz = foo + bar |
| boo = baz |
| boo += foo |
| `, |
| []Definition{ |
| &Assignment{ |
| Name: "foo", |
| NamePos: mkpos(3, 2, 3), |
| EqualsPos: mkpos(7, 2, 7), |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| OrigValue: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| Assigner: "=", |
| Referenced: true, |
| }, |
| &Assignment{ |
| Name: "bar", |
| NamePos: mkpos(19, 3, 3), |
| EqualsPos: mkpos(23, 3, 7), |
| Value: &Variable{ |
| Name: "foo", |
| NamePos: mkpos(25, 3, 9), |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| }, |
| OrigValue: &Variable{ |
| Name: "foo", |
| NamePos: mkpos(25, 3, 9), |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| }, |
| Assigner: "=", |
| Referenced: true, |
| }, |
| &Assignment{ |
| Name: "baz", |
| NamePos: mkpos(31, 4, 3), |
| EqualsPos: mkpos(35, 4, 7), |
| Value: &Operator{ |
| OperatorPos: mkpos(41, 4, 13), |
| Operator: '+', |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuffstuff", |
| }, |
| Args: [2]Expression{ |
| &Variable{ |
| Name: "foo", |
| NamePos: mkpos(37, 4, 9), |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| }, |
| &Variable{ |
| Name: "bar", |
| NamePos: mkpos(43, 4, 15), |
| Value: &Variable{ |
| Name: "foo", |
| NamePos: mkpos(25, 3, 9), |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| }, |
| }, |
| }, |
| }, |
| OrigValue: &Operator{ |
| OperatorPos: mkpos(41, 4, 13), |
| Operator: '+', |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuffstuff", |
| }, |
| Args: [2]Expression{ |
| &Variable{ |
| Name: "foo", |
| NamePos: mkpos(37, 4, 9), |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| }, |
| &Variable{ |
| Name: "bar", |
| NamePos: mkpos(43, 4, 15), |
| Value: &Variable{ |
| Name: "foo", |
| NamePos: mkpos(25, 3, 9), |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| }, |
| }, |
| }, |
| }, |
| Assigner: "=", |
| Referenced: true, |
| }, |
| &Assignment{ |
| Name: "boo", |
| NamePos: mkpos(49, 5, 3), |
| EqualsPos: mkpos(53, 5, 7), |
| Value: &Operator{ |
| Args: [2]Expression{ |
| &Variable{ |
| Name: "baz", |
| NamePos: mkpos(55, 5, 9), |
| Value: &Operator{ |
| OperatorPos: mkpos(41, 4, 13), |
| Operator: '+', |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuffstuff", |
| }, |
| Args: [2]Expression{ |
| &Variable{ |
| Name: "foo", |
| NamePos: mkpos(37, 4, 9), |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| }, |
| &Variable{ |
| Name: "bar", |
| NamePos: mkpos(43, 4, 15), |
| Value: &Variable{ |
| Name: "foo", |
| NamePos: mkpos(25, 3, 9), |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| }, |
| }, |
| }, |
| }, |
| }, |
| &Variable{ |
| Name: "foo", |
| NamePos: mkpos(68, 6, 10), |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| }, |
| }, |
| OperatorPos: mkpos(66, 6, 8), |
| Operator: '+', |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuffstuffstuff", |
| }, |
| }, |
| OrigValue: &Variable{ |
| Name: "baz", |
| NamePos: mkpos(55, 5, 9), |
| Value: &Operator{ |
| OperatorPos: mkpos(41, 4, 13), |
| Operator: '+', |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuffstuff", |
| }, |
| Args: [2]Expression{ |
| &Variable{ |
| Name: "foo", |
| NamePos: mkpos(37, 4, 9), |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| }, |
| &Variable{ |
| Name: "bar", |
| NamePos: mkpos(43, 4, 15), |
| Value: &Variable{ |
| Name: "foo", |
| NamePos: mkpos(25, 3, 9), |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| }, |
| }, |
| }, |
| }, |
| }, |
| Assigner: "=", |
| }, |
| &Assignment{ |
| Name: "boo", |
| NamePos: mkpos(61, 6, 3), |
| EqualsPos: mkpos(66, 6, 8), |
| Value: &Variable{ |
| Name: "foo", |
| NamePos: mkpos(68, 6, 10), |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| }, |
| OrigValue: &Variable{ |
| Name: "foo", |
| NamePos: mkpos(68, 6, 10), |
| Value: &String{ |
| LiteralPos: mkpos(9, 2, 9), |
| Value: "stuff", |
| }, |
| }, |
| Assigner: "+=", |
| }, |
| }, |
| nil, |
| }, |
| {` |
| // comment1 |
| // comment2 |
| |
| /* comment3 |
| comment4 */ |
| // comment5 |
| |
| /* comment6 */ /* comment7 */ // comment8 |
| `, |
| nil, |
| []*CommentGroup{ |
| { |
| Comments: []*Comment{ |
| &Comment{ |
| Comment: []string{"// comment1"}, |
| Slash: mkpos(3, 2, 3), |
| }, |
| &Comment{ |
| Comment: []string{"// comment2"}, |
| Slash: mkpos(17, 3, 3), |
| }, |
| }, |
| }, |
| { |
| Comments: []*Comment{ |
| &Comment{ |
| Comment: []string{"/* comment3", " comment4 */"}, |
| Slash: mkpos(32, 5, 3), |
| }, |
| &Comment{ |
| Comment: []string{"// comment5"}, |
| Slash: mkpos(63, 7, 3), |
| }, |
| }, |
| }, |
| { |
| Comments: []*Comment{ |
| &Comment{ |
| Comment: []string{"/* comment6 */"}, |
| Slash: mkpos(78, 9, 3), |
| }, |
| &Comment{ |
| Comment: []string{"/* comment7 */"}, |
| Slash: mkpos(93, 9, 18), |
| }, |
| &Comment{ |
| Comment: []string{"// comment8"}, |
| Slash: mkpos(108, 9, 33), |
| }, |
| }, |
| }, |
| }, |
| }, |
| } |
| |
| func TestParseValidInput(t *testing.T) { |
| for _, testCase := range validParseTestCases { |
| r := bytes.NewBufferString(testCase.input) |
| file, errs := ParseAndEval("", r, NewScope(nil)) |
| if len(errs) != 0 { |
| t.Errorf("test case: %s", testCase.input) |
| t.Errorf("unexpected errors:") |
| for _, err := range errs { |
| t.Errorf(" %s", err) |
| } |
| t.FailNow() |
| } |
| |
| if len(file.Defs) == len(testCase.defs) { |
| for i := range file.Defs { |
| if !reflect.DeepEqual(file.Defs[i], testCase.defs[i]) { |
| t.Errorf("test case: %s", testCase.input) |
| t.Errorf("incorrect defintion %d:", i) |
| t.Errorf(" expected: %s", testCase.defs[i]) |
| t.Errorf(" got: %s", file.Defs[i]) |
| } |
| } |
| } else { |
| t.Errorf("test case: %s", testCase.input) |
| t.Errorf("length mismatch, expected %d definitions, got %d", |
| len(testCase.defs), len(file.Defs)) |
| } |
| |
| if len(file.Comments) == len(testCase.comments) { |
| for i := range file.Comments { |
| if !reflect.DeepEqual(file.Comments[i], testCase.comments[i]) { |
| t.Errorf("test case: %s", testCase.input) |
| t.Errorf("incorrect comment %d:", i) |
| t.Errorf(" expected: %s", testCase.comments[i]) |
| t.Errorf(" got: %s", file.Comments[i]) |
| } |
| } |
| } else { |
| t.Errorf("test case: %s", testCase.input) |
| t.Errorf("length mismatch, expected %d comments, got %d", |
| len(testCase.comments), len(file.Comments)) |
| } |
| } |
| } |
| |
| // TODO: Test error strings |
