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issues.spec.ts
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issues.spec.ts
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import { TopLevelToken, TagToken, Tokenizer, Context, Liquid, Drop, toValueSync } from '../..'
const LiquidUMD = require('../../dist/liquid.browser.umd.js').Liquid
describe('Issues', function () {
it('#221 unicode blanks are not properly treated', async () => {
const engine = new Liquid({ strictVariables: true, strictFilters: true })
const html = engine.parseAndRenderSync('{{huh | truncate: 11}}', { huh: 'fdsafdsafdsafdsaaaaa' })
expect(html).toBe('fdsafdsa...')
})
it('#252 "Not valid identifier" error for a quotes-containing identifier', async () => {
const template = `{% capture "form_classes" -%}
foo
{%- endcapture %}{{form_classes}}`
const engine = new Liquid()
const html = await engine.parseAndRender(template)
expect(html).toBe('foo')
})
it('#259 complex property access with braces is not supported', async () => {
const engine = new Liquid()
const html = engine.parseAndRenderSync('{{ ["complex key"] }}', { 'complex key': 'foo' })
expect(html).toBe('foo')
})
it('#243 Potential for ReDoS through string replace function', async () => {
const engine = new Liquid()
const INPUT = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa!'
const BROKEN_REGEX = /([a-z]+)+$/
// string filters vulnerable to regexp parameter: split, replace, replace_first, remove_first
const parameters = { input: INPUT, regex: BROKEN_REGEX }
const template = `{{ input | replace:regex,'' }}`
const html = engine.parseAndRenderSync(template, parameters)
// should stringify the regexp rather than execute it
expect(html).toBe(INPUT)
})
it('#263 raw/endraw block not ignoring {% characters', () => {
const template = `{% raw %}This is a code snippet showing how {% breaks the raw block.{% endraw %}`
const engine = new Liquid()
const html = engine.parseAndRenderSync(template)
expect(html).toBe('This is a code snippet showing how {% breaks the raw block.')
})
it('#268 elsif is not supported for unless', () => {
const template = `{%- unless condition1 -%}
<div>X</div>
{%- elsif condition2 -%}
<div>Y</div>
{%- else %}
<div>Z</div>
{% endunless %}`
const engine = new Liquid()
const html = engine.parseAndRenderSync(template, { condition1: true, condition2: true })
expect(html).toBe('<div>Y</div>')
})
it('#277 Passing liquid in FilterImpl', () => {
const engine = new Liquid()
engine.registerFilter('render', function (this: any, template: string, name: string) {
return this.liquid.parseAndRenderSync(decodeURIComponent(template), { name })
})
const html = engine.parseAndRenderSync(
`{{ subtemplate | render: "foo" }}`,
{ subtemplate: encodeURIComponent('hello {{ name }}') }
)
expect(html).toBe('hello foo')
})
it('#288 Unexpected behavior when string literals contain }}', async () => {
const engine = new Liquid()
const html = await engine.parseAndRender(`{{ '{{' }}{{ '}}' }}`)
expect(html).toBe('{{}}')
})
it('#222 Support function calls', async () => {
const engine = new Liquid()
const html = await engine.parseAndRender(
`{{ obj.property }}`,
{ obj: { property: () => 'BAR' } }
)
expect(html).toBe('BAR')
})
it('#313 lenientIf not working as expected in umd', async () => {
const engine = new LiquidUMD({
strictVariables: true,
lenientIf: true
})
const html = await engine.parseAndRender(`{{ name | default: "default name" }}`)
expect(html).toBe('default name')
})
it('#321 comparison for empty/nil', async () => {
const engine = new Liquid()
const html = await engine.parseAndRender(
'{% if empty == nil %}true{%else%}false{%endif%}' +
'{% if nil == empty %}true{%else%}false{%endif%}'
)
expect(html).toBe('falsefalse')
})
it('#320 newline_to_br filter should output <br /> instead of <br/>', async () => {
const engine = new Liquid()
const html = await engine.parseAndRender(
`{{ 'a \n b \n c' | newline_to_br | split: '<br />' }}`
)
expect(html).toBe('a \n b \n c')
})
it('#342 New lines in logical operator', async () => {
const engine = new Liquid()
const tpl = `{%\r\nif\r\ntrue\r\nor\r\nfalse\r\n%}\r\ntrue\r\n{%\r\nendif\r\n%}`
const html = await engine.parseAndRender(tpl)
expect(html).toBe('\r\ntrue\r\n')
})
it('#401 Timezone Offset Issue', async () => {
const engine = new Liquid({ timezoneOffset: -600 })
const tpl = engine.parse('{{ date | date: "%Y-%m-%d %H:%M %p %z" }}')
const html = await engine.render(tpl, { date: '2021-10-06T15:31:00+08:00' })
expect(html).toBe('2021-10-06 17:31 PM +1000')
})
it('#412 Pass root as it is to `resolve`', async () => {
const engine = new Liquid({
root: '/tmp',
relativeReference: false,
fs: {
readFileSync: (file: string) => file,
async readFile (file: string) { return 'foo' },
existsSync (file: string) { return true },
async exists (file: string) { return true },
resolve: (dir: string, file: string) => dir + '/' + file
}
})
const tpl = engine.parse('{% include "foo.liquid" %}')
const html = await engine.renderSync(tpl)
expect(html).toBe('/tmp/foo.liquid')
})
it('#416 Templates imported by {% render %} not cached for concurrent async render', async () => {
const readFile = jest.fn(() => Promise.resolve('HELLO'))
const exists = jest.fn(() => 'HELLO')
const engine = new Liquid({
cache: true,
extname: '.liquid',
root: '~',
relativeReference: false,
fs: {
exists,
resolve: (root: string, file: string, ext: string) => root + '#' + file + ext,
sep: '#',
readFile
} as any
})
await Promise.all(Array(5).fill(0).map(
x => engine.parseAndRender("{% render 'template' %}")
))
expect(exists).toHaveBeenCalledTimes(1)
expect(readFile).toHaveBeenCalledTimes(1)
})
it('#431 Error when using Date timezoneOffset in 9.28.5', () => {
const engine = new Liquid({
timezoneOffset: 0,
preserveTimezones: true
})
const tpl = engine.parse('Welcome to {{ now | date: "%Y-%m-%d" }}')
return expect(engine.render(tpl, { now: new Date('2019-02-01T00:00:00.000Z') })).resolves.toBe('Welcome to 2019-02-01')
})
it('#433 Support Jekyll-like includes', async () => {
const engine = new Liquid({
dynamicPartials: false,
relativeReference: false,
root: '/tmp',
fs: {
readFileSync: (file: string) => file,
async readFile (file: string) { return `CONTENT for ${file}` },
existsSync (file: string) { return true },
async exists (file: string) { return true },
resolve: (dir: string, file: string) => dir + '/' + file
}
})
const tpl = engine.parse('{% include prefix/{{ my_variable | append: "-bar" }}/suffix %}')
const html = await engine.render(tpl, { my_variable: 'foo' })
expect(html).toBe('CONTENT for /tmp/prefix/foo-bar/suffix')
})
it('#428 Implement liquid/echo tags', () => {
const template = `{%- liquid
for value in array
assign double_value = value | times: 2
echo double_value | times: 2
unless forloop.last
echo '#'
endunless
endfor
echo '#'
echo double_value
-%}`
const engine = new Liquid()
const html = engine.parseAndRenderSync(template, { array: [1, 2, 3] })
expect(html).toBe('4#8#12#6')
})
it('#454 leaking JS prototype getter functions in evaluation', async () => {
const engine = new Liquid({ ownPropertyOnly: true })
const html = engine.parseAndRenderSync('{{foo | size}}-{{bar.coo}}', { foo: 'foo', bar: Object.create({ coo: 'COO' }) })
expect(html).toBe('3-')
})
it('#465 Liquidjs divided_by not compatible with Ruby/Shopify Liquid', () => {
const engine = new Liquid({ ownPropertyOnly: true })
const html = engine.parseAndRenderSync('{{ 5 | divided_by: 3, true }}')
expect(html).toBe('1')
})
it('#479 url_encode throws on undefined value', async () => {
const engine = new Liquid({
strictVariables: false
})
const tpl = engine.parse('{{ v | url_encode }}')
const html = await engine.render(tpl, { v: undefined })
expect(html).toBe('')
})
it('#481 filters that should not throw', async () => {
const engine = new Liquid()
const tpl = engine.parse(`
{{ foo | join }}
{{ foo | map: "k" }}
{{ foo | reverse }}
{{ foo | slice: 2 }}
{{ foo | newline_to_br }}
{{ foo | strip_html }}
{{ foo | truncatewords }}
{{ foo | concat | json }}
`)
const html = await engine.render(tpl, { foo: undefined })
expect(html.trim()).toBe('[]')
})
it('#481 concat should always return an array', async () => {
const engine = new Liquid()
const html = await engine.parseAndRender(`{{ foo | concat | json }}`)
expect(html).toBe('[]')
})
it('#486 Access array items from the right with negative indexes', async () => {
const engine = new Liquid()
const html = await engine.parseAndRender(`{% assign a = "x,y,z" | split: ',' -%}{{ a[-1] }} {{ a[-3] }} {{ a[-8] }}`)
expect(html).toBe('z x ')
})
it('#492 contains operator does not support Drop', async () => {
class TemplateDrop extends Drop {
valueOf () { return 'product' }
}
const engine = new Liquid()
const ctx = { template: new TemplateDrop() }
const html = await engine.parseAndRender(`{% if template contains "product" %}contains{%endif%}`, ctx)
expect(html).toBe('contains')
})
it('#513 should support large number of templates [async]', async () => {
const engine = new Liquid()
const html = await engine.parseAndRender(`{% for i in (1..10000) %}{{ i }}{% endfor %}`)
expect(html).toHaveLength(38894)
})
it('#513 should support large number of templates [sync]', () => {
const engine = new Liquid()
const html = engine.parseAndRenderSync(`{% for i in (1..10000) %}{{ i }}{% endfor %}`)
expect(html).toHaveLength(38894)
})
it('#519 should throw parse error for invalid assign expression', () => {
const engine = new Liquid()
expect(() => engine.parse('{% assign headshot = https://testurl.com/not_enclosed_in_quotes.jpg %}')).toThrow(/expected "|" before filter, line:1, col:27/)
})
it('#527 export Liquid Expression', () => {
const tokenizer = new Tokenizer('a > b')
const expression = tokenizer.readExpression()
const result = toValueSync(expression.evaluate(new Context({ a: 1, b: 2 })))
expect(result).toBe(false)
})
it('#527 export Liquid Expression (evalValue)', async () => {
const liquid = new Liquid()
const result = await liquid.evalValue('a > b', { a: 1, b: 2 })
expect(result).toBe(false)
})
it('#527 export Liquid Expression (evalValueSync)', async () => {
const liquid = new Liquid()
const result = liquid.evalValueSync('a > b', { a: 1, b: 2 })
expect(result).toBe(false)
})
it('#276 Promise support in expressions', async () => {
const liquid = new Liquid()
const tpl = '{%if name == "alice" %}true{%endif%}'
const ctx = { name: Promise.resolve('alice') }
const html = await liquid.parseAndRender(tpl, ctx)
expect(html).toBe('true')
})
it('#533 Nested Promise support for scope object', async () => {
const liquid = new Liquid()
const context = {
a: 1,
b: Promise.resolve(1),
async c () { return 1 },
d: { d: 1 },
e: { e: Promise.resolve(1) },
f: {
async f () { return 1 }
},
g: Promise.resolve({ g: 1 }),
async h () {
return { h: 1 }
},
i: Promise.resolve({
i: Promise.resolve(1)
}),
j: Promise.resolve({
async j () {
return 1
}
})
}
expect(await liquid.evalValue('a == 1', context)).toBe(true)
expect(await liquid.evalValue('b == 1', context)).toBe(true)
expect(await liquid.evalValue('c == 1', context)).toBe(true)
expect(await liquid.evalValue('d.d == 1', context)).toBe(true)
expect(await liquid.evalValue('e.e == 1', context)).toBe(true)
expect(await liquid.evalValue('f.f == 1', context)).toBe(true)
expect(await liquid.evalValue('g.g == 1', context)).toBe(true)
expect(await liquid.evalValue('h.h == 1', context)).toBe(true)
expect(await liquid.evalValue('i.i == 1', context)).toBe(true)
expect(await liquid.evalValue('j.j == 1', context)).toBe(true)
expect(await liquid.parseAndRender('{{a}}', context)).toBe('1')
expect(await liquid.parseAndRender('{{b}}', context)).toBe('1')
expect(await liquid.parseAndRender('{{c}}', context)).toBe('1')
expect(await liquid.parseAndRender('{{d.d}}', context)).toBe('1')
expect(await liquid.parseAndRender('{{e.e}}', context)).toBe('1')
expect(await liquid.parseAndRender('{{f.f}}', context)).toBe('1')
expect(await liquid.parseAndRender('{{g.g}}', context)).toBe('1')
expect(await liquid.parseAndRender('{{h.h}}', context)).toBe('1')
expect(await liquid.parseAndRender('{{i.i}}', context)).toBe('1')
expect(await liquid.parseAndRender('{{j.j}}', context)).toBe('1')
})
it('#559 Case/When should evaluate multiple When statements', async () => {
const liquid = new Liquid()
const tpl = `
{% assign tag = 'Love' %}
{% case tag %}
{% when 'Love' or 'Luck' %}
This is a love or luck potion.
{% when 'Strength','Health', 'Love' %}
This is a strength or health or love potion.
{% else %}
This is a potion.
{% endcase %}
`
const html = await liquid.parseAndRender(tpl)
expect(html).toMatch(/^\s*This is a love or luck potion.\s+This is a strength or health or love potion.\s*$/)
})
it('#570 tag registration compatible to v9', async () => {
const liquid = new Liquid()
liquid.registerTag('metadata_file', {
parse (tagToken: TagToken, remainTokens: TopLevelToken[]) {
this.str = tagToken.args
},
async render (ctx: Context) {
const content = await Promise.resolve(`{{${this.str}}}`)
return this.liquid.parseAndRender(content.toString(), ctx)
}
})
const tpl = '{% metadata_file foo %}'
const ctx = { foo: 'FOO' }
const html = await liquid.parseAndRender(tpl, ctx)
expect(html).toBe('FOO')
})
it('#573 date filter should return parsed input when no format is provided', async () => {
const liquid = new Liquid()
liquid.registerTag('metadata_file', {
parse (tagToken: TagToken, remainTokens: TopLevelToken[]) {
this.str = tagToken.args
},
async render (ctx: Context) {
const content = await Promise.resolve(`{{${this.str}}}`)
return this.liquid.parseAndRender(content.toString(), ctx)
}
})
const tpl = `{{ 'now' | date }}`
const html = await liquid.parseAndRender(tpl)
// sample: Thursday, February 2, 2023 at 6:25 pm +0000
expect(html).toMatch(/\w+, \w+ \d+, \d\d\d\d at \d+:\d\d [ap]m [-+]\d\d\d\d/)
})
it('#575 Add support for Not operator', async () => {
const liquid = new Liquid()
const tpl = `
{% if link and not button %}
<a href="{{ link }}">Lot more code here</a>
{% else %}
<div>Lot more code here</div>
{% endif %}`
const ctx = { link: 'https://example.com', button: false }
const html = await liquid.parseAndRender(tpl, ctx)
expect(html.trim()).toBe('<a href="https://example.com">Lot more code here</a>')
})
it('#70 strip multiline content of <style>', async () => {
const str = `
<style type="text/css">
.test-one-line {display: none;}
</style>`
const engine = new Liquid()
const template = '{{ str | strip_html }}'
const html = await engine.parseAndRender(template, { str })
expect(html).toMatch(/^\s*$/)
})
it('#589 Arrays should compare values', async () => {
const engine = new Liquid()
const template = `
{% assign people1 = "alice, bob, carol" | split: ", " -%}
{% assign people2 = "alice, bob, carol" | split: ", " -%}
{% if people1 == people2 %}true{%else%}false{% endif %}
`
const html = await engine.parseAndRender(template)
expect(html).toContain('true')
})
it('#604 date filter appears to add DST correction to UTC dates', () => {
const engine = new Liquid({
timezoneOffset: 'Etc/GMT'
})
const html = engine.parseAndRenderSync(
'{{ "2023-04-05T12:00:00Z" | date: "%Y-%m-%dT%H:%M:%S%z", "Etc/GMT" }}' +
'{{ "2023-01-05T12:00:00Z" | date: "%Y-%m-%dT%H:%M:%S%z", 0 }}' +
'{{ "2023-01-05T12:00:00Z" | date: "%Y-%m-%dT%H:%M:%S%z", "Etc/GMT" }}' +
'{{ "2023-01-05T12:00:00Z" | date: "%Y-%m-%dT%H:%M:%S%z" }}' +
'{{ "2023-01-05T12:00:00+0000" | date: "%Y-%m-%dT%H:%M:%S%z", 0 }}'
)
const expected =
'2023-04-05T12:00:00+0000' +
'2023-01-05T12:00:00+0000' +
'2023-01-05T12:00:00+0000' +
'2023-01-05T12:00:00+0000' +
'2023-01-05T12:00:00+0000'
expect(html).toEqual(expected)
})
it('#610 should throw missing ":" after filter name', () => {
const engine = new Liquid()
const fn = () => engine.parseAndRenderSync("{%- assign module = '' | split '' -%}")
expect(fn).toThrow(/expected ":" after filter name/)
})
it('#628 Single or double quote breaks comments', () => {
const template = `{%- liquid
# Show a message that's customized to the product type
assign product_type = product.type | downcase
assign message = ''
case product_type
when 'health'
assign message = 'This is a health potion!'
when 'love'
assign message = 'This is a love potion!'
else
assign message = 'This is a potion!'
endcase
echo message
-%}`
const engine = new Liquid()
const product = { type: 'love' }
const result = engine.parseAndRenderSync(template, { product })
expect(result).toEqual('This is a love potion!')
})
it('#643 Error When Accessing Subproperty of Bracketed Reference', () => {
const engine = new Liquid()
const tpl = '{{ ["Key String with Spaces"].subpropertyKey }}'
const ctx = {
'Key String with Spaces': {
subpropertyKey: 'FOO'
}
}
expect(engine.parseAndRenderSync(tpl, ctx)).toEqual('FOO')
})
})