/
test.js
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test.js
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"use strict";
const razorleaf = require("./");
const Markup = require("./markup");
const parser = require("./parser");
const PARSER_ERROR_MESSAGE = /^(.+) at line \d+, character \d+ in <Razor Leaf template>/;
const tests = [
{
name: "interpolation without identifiers",
template: '"#{5}"',
expected: { output: "5" },
},
{
name: "consecutive expressions",
template: '"#{1 + 2}#{3 | 4}"',
expected: { output: "37" },
},
{
name: "content escaping",
template: '"#{"<>&\\"<>&\\""}"',
expected: { output: '<>&"<>&"' },
},
{
name: "attribute escaping",
template: 'div data-test: "#{"<>&\\"<>&\\""}"',
expected: { output: '<div data-test="<>&"<>&""></div>' },
},
{
name: "unescaped content",
template: '!"<b>test</b>"',
expected: { output: "<b>test</b>" },
},
{
name: "unescaped expression",
template: '!"#{data.unsafe}"',
data: {
unsafe: Markup.unsafe("<b>unsafe</b>"),
},
expected: { output: "<b>unsafe</b>" },
},
{
name: "unescaped string expression",
template: '!"#{"<b>unsafe</b>"}"',
expected: { error: "Unescaped content must be an instance of Markup" },
},
{
name: "force-unescaped string expression",
template: '!!"#{"<b>unsafe</b>"}"',
expected: { output: "<b>unsafe</b>" },
},
{
name: "escaped double-quotes",
template: '"println!(\\"Hello, world!\\")"',
expected: { output: 'println!("Hello, world!")' },
},
{
name: "escaped backslash",
template: '"\\\\"',
expected: { output: "\\" },
},
{
name: "comment after boolean attribute",
template: "div\n\tdata-test: \"\"\n\t# comment",
expected: { output: "<div data-test></div>" },
},
{
name: "non-conflicting output variable",
template: 'do var output;\n"#{typeof output}"',
expected: { output: "undefined" },
},
{
name: "non-conflicting output variable with escaped references",
template: 'do var \\u006futput;\n"#{typeof \\u006futput}"',
expected: { output: "undefined" },
},
{
name: "non-conflicting output variable with extended escaped references",
template: 'do var \\u{6f}utput;\n"#{typeof \\u{6f}utput}"',
expected: { output: "undefined" },
},
{
name: "including attributes",
template: "script include async",
include: {
async: 'async: ""',
},
expected: { output: "<script async></script>" },
},
{
name: "conditional attributes",
template: 'div "Hello, world!" \n\tif true\n\t\t.pass id: "#{data.example}"\n\tif false\n\t\t.fail data-fail: "true"',
data: { example: "example" },
expected: { output: '<div id="example" class="pass">Hello, world!</div>' },
},
{
name: "reordering of mixed conditionals",
template: 'do var x = true;\ndiv "Hello, world!" \n\tif x\n\t\t"#{data.example}"\n\tif x = false\n\t\tdata-fail: "true"',
data: { example: "example" },
expected: { output: "<div>Hello, world!example</div>" },
},
{
name: "nested conditionals",
template: 'div if true\n\tif 1\n\t\t"Good" data-example: ""',
expected: { output: "<div data-example>Good</div>" },
},
{
name: "block appension",
template: 'extends layout\nappend title "two"',
include: {
layout: 'doctype\nhtml\n\thead\n\t\ttitle block title "one, "',
},
expected: { output: "<!DOCTYPE html><html><head><title>one, two</title></head></html>" },
},
{
name: "loop with index",
template: 'for x, y of [1, 2, 3]\n\t"#{x * (y + 1)}"',
expected: { output: "149" },
},
{
name: "loop over non-array iterable",
template: 'for x of new Set([2, 2, 3])\n\t"#{x}"',
expected: { output: "23" },
},
{
name: "non-conflicting variable in loop with index",
template: 'for x, i of [1, 2, 3]\n\tfor y of [4, 5, 6]\n\t\t"#{i}"',
expected: { output: "000111222" },
},
{
name: "non-conflicting variable in nested loops with index",
template: 'for x, i of [1, 2, 3]\n\tfor y, i of [4, 5, 6]\n\t\tfor z, i of [7, 8, 9]\n\t\t\t"#{i}"',
expected: { output: "012012012012012012012012012" },
},
{
name: "modifying blocks in root template",
template: "replace a",
expected: { error: "Unexpected block replacement in a root template" },
},
{
name: "carriage return/newline combination",
template: "hello\r\n\tworld",
expected: { output: "<hello><world></world></hello>" },
},
{
name: "globals",
template: '"#{data.count} red balloon#{s(data.count)}"',
data: { count: 99 },
options: {
globals: {
s: n => n === 1 ? "" : "s",
},
},
expected: { output: "99 red balloons" },
},
{
name: "attributes in else after content in if",
template: 'div\n\tif false\n\t\t"fail"\n\telse\n\t\tdata-status: "pass"',
expected: { output: "<div data-status=pass></div>" },
},
{
name: "elif inside element",
template: 'div\n\tif false\n\t\t"foo"\n\telif true\n\t\t"bar"',
expected: { output: "<div>bar</div>" },
},
{
name: "unexpected character",
template: "$",
expected: { error: "Unexpected $" },
},
{
name: "character with two-byte UTF-16 representation",
template: "𝑎",
expected: { error: "Unexpected U+1D44E" },
},
{
name: "initial multiple-tab indentation",
template: "div\n\t\tdiv",
expected: { error: "Excessive indent of 2 tabs; one tab always represents one indent level" },
},
{
name: "hasOwnProperty as a variable name",
template: 'do var hasOwnProperty;\nfor x of [1, 2, 3]\n\t"#{x}"',
expected: { output: "123" },
},
{
name: "hasOwnProperty as a block name",
template: "extends layout\nreplace hasOwnProperty",
include: {
layout: "block hasOwnProperty",
},
expected: { output: "" },
},
{
name: "block substitution with attributes",
template: "extends layout\nreplace content\n\t.test-pass",
include: {
layout: "body\n\tblock content\n\t\t.test-fail",
},
expected: { output: "<body class=test-pass></body>" },
},
{
name: "extended Unicode escape",
template: '"\\u{1f60a}"',
expected: { output: "😊" },
},
{
name: "invalid extended Unicode escape",
template: '"\\u{110000}"',
expected: { error: "Undefined Unicode code-point" },
},
{
name: "invalid escape",
template: '"\\g"',
expected: { error: "Expected escape sequence" },
},
{
name: "bad interpolation for ()",
template: '"#{0)+(0}"',
expected: { error: "No interpolation is a valid JavaScript expression (of ['0)+(0'])" },
},
{
name: "bad interpolation for () + void combined",
template: '"#{/*/0)}"',
expected: { error: "No interpolation is a valid JavaScript expression (of ['/*/0)'])" },
},
{
name: "included macros",
template: "include macros\ntest()",
include: {
macros: 'macro test()\n\t"pass"',
},
expected: { output: "pass" },
},
{
name: "recursive macros",
template: 'macro countdown(n)\n\tif n === 1\n\t\t"1"\n\telse\n\t\t"#{n}, " countdown(n - 1)\ncountdown(5)\n"; "\ncountdown(5)',
expected: { output: "5, 4, 3, 2, 1; 5, 4, 3, 2, 1" },
},
{
name: "macros with conflicting variable names",
template: 'do var x = 5;\nmacro test(x)\n\t"#{x},"\ntest(12)\n"#{x}"',
expected: { output: "12,5" },
},
{
name: "macro self-calls with different blocks",
template: "macro test() yield\ntest() test()",
expected: { output: "" },
},
{
name: "macro self-calls with different blocks in attribute context",
template: "macro test() yield\na test() test()",
expected: { output: "<a></a>" },
},
{
name: "repeated macros in attribute context",
template: 'macro test(x) "#{x}"\ndiv\n\ttest(1)\n\ttest(2)',
expected: { output: "<div>12</div>" },
},
{
name: "macro with conflicting variable name in void element context",
template: "do var x = 5;\nmacro test(x)\nimg test(12)",
expected: { output: "<img>" },
},
{
name: "macro called multiple times in attribute context",
template: "macro a(x) \"#{x}\"\nmacro b(y) div a(y)\n\ndiv\n\tb(1)\n\tb(2)",
expected: { output: "<div><div>1</div><div>2</div></div>" },
},
{
name: "code blocks",
template: "do let r = `0\n\t`\n\tr += `1\n\t\t`\n\tr += 2\n\"#{r}\"",
expected: { output: "0\n1\n\t2" },
},
{
name: "code blocks with first indentation in template",
template: "do let x;\ndo\n\tif (true)\n\t\tx = 5;\n\n\"#{x}\"",
expected: { output: "5" },
},
{
name: "boolean attributes",
template: "input disabled: \"\"",
expected: { output: "<input disabled>" },
},
{
name: "conditional boolean attribute shorthand",
template: "button disabled: if true\nbutton disabled: if false",
expected: { output: "<button disabled></button><button></button>" },
},
{
name: "attribute split across multiple lines incorrectly",
template: 'html\n\tlang:\n\t"fr"',
expected: { error: "Expected attribute value or “if”" },
},
{
name: "content `if` blocks after code",
template: 'div\n\tdo const x = 5;\n\tif x === 5\n\t\t"pass"',
expected: { output: "<div>pass</div>" },
fails: true,
},
{
name: "attribute `if` blocks after code",
template: 'div\n\tdo const x = 5;\n\tif x === 5\n\t\tdata-pass: ""',
expected: { output: "<div data-pass></div>" },
fails: true,
},
];
const passes = test => {
let output;
let error;
let errorMessage;
const options = {
load: name =>
parser.parse(test.include[name], options),
...test.options,
};
try {
output = razorleaf.compile(test.template, options)(test.data);
} catch (e) {
const m = PARSER_ERROR_MESSAGE.exec(e.message);
error = e;
errorMessage = m ? m[1] : e.message;
}
if (errorMessage === test.expected.error && output === test.expected.output) {
console.log("\x1b[32m✔\x1b[0m \x1b[1m%s\x1b[0m passed", test.name);
return !test.fails;
}
console.log("\x1b[%s\x1b[0m \x1b[1m%s\x1b[0m failed", test.fails ? "33m-" : "31m✘", test.name);
console.log(error ? error.stack.replace(/^/gm, " ") : " Output: " + output);
return test.fails;
};
process.exitCode = !tests.every(passes);