1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
/* global it, expect, describe */
import { Eta } from "../src/index";
const eta = new Eta();
const fs = require("fs");const path = require("path");
const filePath = path.join(__dirname, "templates/complex.eta");
const complexTemplate = fs.readFileSync(filePath, "utf8");
describe("parse test", () => {  it("parses a simple template", () => {    const buff = eta.parse("hi <%= hey %>");    expect(buff).toEqual(["hi ", { val: "hey", t: "i" }]);  });
  it("parses a raw tag", () => {    const buff = eta.parse("hi <%~ hey %>");    expect(buff).toEqual(["hi ", { val: "hey", t: "r" }]);  });
  it("works with whitespace trimming", () => {    const buff = eta.parse("hi\n<%- = hey-%> <%_ = hi _%>");    expect(buff).toEqual(["hi", { val: "hey", t: "i" }, { val: "hi", t: "i" }]);  });
  it("works with multiline comments", () => {    const buff = eta.parse("hi <% /* comment contains delimiter %> */ %>");    expect(buff).toEqual(["hi ", { val: "/* comment contains delimiter %> */", t: "e" }]);  });
  it("parses with simple template literal", () => {    const buff = eta.parse("hi <%= `template %> ${value}` %>");    expect(buff).toEqual(["hi ", { val: "`template %> ${value}`", t: "i" }]);  });
  it("compiles complex template", () => {    const buff = eta.parse(complexTemplate);    expect(buff).toEqual([      "Hi\\n",      { t: "e", val: 'console.log("Hope you like Eta!")' },      { t: "i", val: "it.htmlstuff" },      "\\n",      { t: "e", val: "for (var key in it.obj) {" },      "Value: ",      { t: "i", val: "it.obj[key]" },      ", Key: ",      { t: "i", val: "key" },      "\\n",      { t: "e", val: "if (key === 'thirdchild') {" },      "  ",      {        t: "e",        val: "for (var i = 0, arr = it.obj[key]; i < arr.length; i++) {",      },      "      Salutations! Index: ",      { t: "i", val: "i" },      ", parent key: ",      { t: "i", val: "key" },      "      \\n  ",      { t: "e", val: "}" },      { t: "e", val: "}" },      { t: "e", val: "}" },      "\\nThis is a partial: ",      { t: "r", val: 'include("mypartial")' },    ]);  });
  test("throws with unclosed tag", () => {    expect(() => {      eta.parse('<%hi("hey")');    }).toThrowError("hi");  });
  test("throws with unclosed single-quote string", () => {    expect(() => {      eta.parse("<%= ' %>");    }).toThrowError(`unclosed string at line 1 col 5:
  <%= ' %>      ^`);  });
  test("throws with unclosed double-quote string", () => {    expect(() => {      eta.parse('<%= " %>');    }).toThrowError(`unclosed string at line 1 col 5:
  <%= " %>      ^`);  });
  test("throws with unclosed template literal", () => {    expect(() => {      eta.parse("<%= ` %>");    }).toThrowError(`unclosed string at line 1 col 5:
  <%= \` %>      ^`);  });
  test("throws with unclosed multi-line comment", () => {    expect(() => {      eta.parse("<%= /* %>");    }).toThrowError(`unclosed comment at line 1 col 5:
  <%= /* %>      ^`);  });});