rf-web/vendor/bundle/gems/liquid-4.0.3/test/integration/template_test.rb
2019-10-21 10:18:17 +02:00

333 lines
11 KiB
Ruby

require 'test_helper'
require 'timeout'
class TemplateContextDrop < Liquid::Drop
def liquid_method_missing(method)
method
end
def foo
'fizzbuzz'
end
def baz
@context.registers['lulz']
end
end
class SomethingWithLength < Liquid::Drop
def length
nil
end
end
class ErroneousDrop < Liquid::Drop
def bad_method
raise 'ruby error in drop'
end
end
class DropWithUndefinedMethod < Liquid::Drop
def foo
'foo'
end
end
class TemplateTest < Minitest::Test
include Liquid
def test_instance_assigns_persist_on_same_template_object_between_parses
t = Template.new
assert_equal 'from instance assigns', t.parse("{% assign foo = 'from instance assigns' %}{{ foo }}").render!
assert_equal 'from instance assigns', t.parse("{{ foo }}").render!
end
def test_warnings_is_not_exponential_time
str = "false"
100.times do
str = "{% if true %}true{% else %}#{str}{% endif %}"
end
t = Template.parse(str)
assert_equal [], Timeout.timeout(1) { t.warnings }
end
def test_instance_assigns_persist_on_same_template_parsing_between_renders
t = Template.new.parse("{{ foo }}{% assign foo = 'foo' %}{{ foo }}")
assert_equal 'foo', t.render!
assert_equal 'foofoo', t.render!
end
def test_custom_assigns_do_not_persist_on_same_template
t = Template.new
assert_equal 'from custom assigns', t.parse("{{ foo }}").render!('foo' => 'from custom assigns')
assert_equal '', t.parse("{{ foo }}").render!
end
def test_custom_assigns_squash_instance_assigns
t = Template.new
assert_equal 'from instance assigns', t.parse("{% assign foo = 'from instance assigns' %}{{ foo }}").render!
assert_equal 'from custom assigns', t.parse("{{ foo }}").render!('foo' => 'from custom assigns')
end
def test_persistent_assigns_squash_instance_assigns
t = Template.new
assert_equal 'from instance assigns', t.parse("{% assign foo = 'from instance assigns' %}{{ foo }}").render!
t.assigns['foo'] = 'from persistent assigns'
assert_equal 'from persistent assigns', t.parse("{{ foo }}").render!
end
def test_lambda_is_called_once_from_persistent_assigns_over_multiple_parses_and_renders
t = Template.new
t.assigns['number'] = -> { @global ||= 0; @global += 1 }
assert_equal '1', t.parse("{{number}}").render!
assert_equal '1', t.parse("{{number}}").render!
assert_equal '1', t.render!
@global = nil
end
def test_lambda_is_called_once_from_custom_assigns_over_multiple_parses_and_renders
t = Template.new
assigns = { 'number' => -> { @global ||= 0; @global += 1 } }
assert_equal '1', t.parse("{{number}}").render!(assigns)
assert_equal '1', t.parse("{{number}}").render!(assigns)
assert_equal '1', t.render!(assigns)
@global = nil
end
def test_resource_limits_works_with_custom_length_method
t = Template.parse("{% assign foo = bar %}")
t.resource_limits.render_length_limit = 42
assert_equal "", t.render!("bar" => SomethingWithLength.new)
end
def test_resource_limits_render_length
t = Template.parse("0123456789")
t.resource_limits.render_length_limit = 5
assert_equal "Liquid error: Memory limits exceeded", t.render
assert t.resource_limits.reached?
t.resource_limits.render_length_limit = 10
assert_equal "0123456789", t.render!
refute_nil t.resource_limits.render_length
end
def test_resource_limits_render_score
t = Template.parse("{% for a in (1..10) %} {% for a in (1..10) %} foo {% endfor %} {% endfor %}")
t.resource_limits.render_score_limit = 50
assert_equal "Liquid error: Memory limits exceeded", t.render
assert t.resource_limits.reached?
t = Template.parse("{% for a in (1..100) %} foo {% endfor %}")
t.resource_limits.render_score_limit = 50
assert_equal "Liquid error: Memory limits exceeded", t.render
assert t.resource_limits.reached?
t.resource_limits.render_score_limit = 200
assert_equal (" foo " * 100), t.render!
refute_nil t.resource_limits.render_score
end
def test_resource_limits_assign_score
t = Template.parse("{% assign foo = 42 %}{% assign bar = 23 %}")
t.resource_limits.assign_score_limit = 1
assert_equal "Liquid error: Memory limits exceeded", t.render
assert t.resource_limits.reached?
t.resource_limits.assign_score_limit = 2
assert_equal "", t.render!
refute_nil t.resource_limits.assign_score
end
def test_resource_limits_assign_score_nested
t = Template.parse("{% assign foo = 'aaaa' | reverse %}")
t.resource_limits.assign_score_limit = 3
assert_equal "Liquid error: Memory limits exceeded", t.render
assert t.resource_limits.reached?
t.resource_limits.assign_score_limit = 5
assert_equal "", t.render!
end
def test_resource_limits_aborts_rendering_after_first_error
t = Template.parse("{% for a in (1..100) %} foo1 {% endfor %} bar {% for a in (1..100) %} foo2 {% endfor %}")
t.resource_limits.render_score_limit = 50
assert_equal "Liquid error: Memory limits exceeded", t.render
assert t.resource_limits.reached?
end
def test_resource_limits_hash_in_template_gets_updated_even_if_no_limits_are_set
t = Template.parse("{% for a in (1..100) %} {% assign foo = 1 %} {% endfor %}")
t.render!
assert t.resource_limits.assign_score > 0
assert t.resource_limits.render_score > 0
assert t.resource_limits.render_length > 0
end
def test_render_length_persists_between_blocks
t = Template.parse("{% if true %}aaaa{% endif %}")
t.resource_limits.render_length_limit = 7
assert_equal "Liquid error: Memory limits exceeded", t.render
t.resource_limits.render_length_limit = 8
assert_equal "aaaa", t.render
t = Template.parse("{% if true %}aaaa{% endif %}{% if true %}bbb{% endif %}")
t.resource_limits.render_length_limit = 13
assert_equal "Liquid error: Memory limits exceeded", t.render
t.resource_limits.render_length_limit = 14
assert_equal "aaaabbb", t.render
t = Template.parse("{% if true %}a{% endif %}{% if true %}b{% endif %}{% if true %}a{% endif %}{% if true %}b{% endif %}{% if true %}a{% endif %}{% if true %}b{% endif %}")
t.resource_limits.render_length_limit = 5
assert_equal "Liquid error: Memory limits exceeded", t.render
t.resource_limits.render_length_limit = 11
assert_equal "Liquid error: Memory limits exceeded", t.render
t.resource_limits.render_length_limit = 12
assert_equal "ababab", t.render
end
def test_default_resource_limits_unaffected_by_render_with_context
context = Context.new
t = Template.parse("{% for a in (1..100) %} {% assign foo = 1 %} {% endfor %}")
t.render!(context)
assert context.resource_limits.assign_score > 0
assert context.resource_limits.render_score > 0
assert context.resource_limits.render_length > 0
end
def test_can_use_drop_as_context
t = Template.new
t.registers['lulz'] = 'haha'
drop = TemplateContextDrop.new
assert_equal 'fizzbuzz', t.parse('{{foo}}').render!(drop)
assert_equal 'bar', t.parse('{{bar}}').render!(drop)
assert_equal 'haha', t.parse("{{baz}}").render!(drop)
end
def test_render_bang_force_rethrow_errors_on_passed_context
context = Context.new({ 'drop' => ErroneousDrop.new })
t = Template.new.parse('{{ drop.bad_method }}')
e = assert_raises RuntimeError do
t.render!(context)
end
assert_equal 'ruby error in drop', e.message
end
def test_exception_renderer_that_returns_string
exception = nil
handler = ->(e) { exception = e; '<!-- error -->' }
output = Template.parse("{{ 1 | divided_by: 0 }}").render({}, exception_renderer: handler)
assert exception.is_a?(Liquid::ZeroDivisionError)
assert_equal '<!-- error -->', output
end
def test_exception_renderer_that_raises
exception = nil
assert_raises(Liquid::ZeroDivisionError) do
Template.parse("{{ 1 | divided_by: 0 }}").render({}, exception_renderer: ->(e) { exception = e; raise })
end
assert exception.is_a?(Liquid::ZeroDivisionError)
end
def test_global_filter_option_on_render
global_filter_proc = ->(output) { "#{output} filtered" }
rendered_template = Template.parse("{{name}}").render({ "name" => "bob" }, global_filter: global_filter_proc)
assert_equal 'bob filtered', rendered_template
end
def test_global_filter_option_when_native_filters_exist
global_filter_proc = ->(output) { "#{output} filtered" }
rendered_template = Template.parse("{{name | upcase}}").render({ "name" => "bob" }, global_filter: global_filter_proc)
assert_equal 'BOB filtered', rendered_template
end
def test_undefined_variables
t = Template.parse("{{x}} {{y}} {{z.a}} {{z.b}} {{z.c.d}}")
result = t.render({ 'x' => 33, 'z' => { 'a' => 32, 'c' => { 'e' => 31 } } }, { strict_variables: true })
assert_equal '33 32 ', result
assert_equal 3, t.errors.count
assert_instance_of Liquid::UndefinedVariable, t.errors[0]
assert_equal 'Liquid error: undefined variable y', t.errors[0].message
assert_instance_of Liquid::UndefinedVariable, t.errors[1]
assert_equal 'Liquid error: undefined variable b', t.errors[1].message
assert_instance_of Liquid::UndefinedVariable, t.errors[2]
assert_equal 'Liquid error: undefined variable d', t.errors[2].message
end
def test_nil_value_does_not_raise
Liquid::Template.error_mode = :strict
t = Template.parse("some{{x}}thing")
result = t.render!({ 'x' => nil }, strict_variables: true)
assert_equal 0, t.errors.count
assert_equal 'something', result
end
def test_undefined_variables_raise
t = Template.parse("{{x}} {{y}} {{z.a}} {{z.b}} {{z.c.d}}")
assert_raises UndefinedVariable do
t.render!({ 'x' => 33, 'z' => { 'a' => 32, 'c' => { 'e' => 31 } } }, { strict_variables: true })
end
end
def test_undefined_drop_methods
d = DropWithUndefinedMethod.new
t = Template.new.parse('{{ foo }} {{ woot }}')
result = t.render(d, { strict_variables: true })
assert_equal 'foo ', result
assert_equal 1, t.errors.count
assert_instance_of Liquid::UndefinedDropMethod, t.errors[0]
end
def test_undefined_drop_methods_raise
d = DropWithUndefinedMethod.new
t = Template.new.parse('{{ foo }} {{ woot }}')
assert_raises UndefinedDropMethod do
t.render!(d, { strict_variables: true })
end
end
def test_undefined_filters
t = Template.parse("{{a}} {{x | upcase | somefilter1 | somefilter2 | somefilter3}}")
filters = Module.new do
def somefilter3(v)
"-#{v}-"
end
end
result = t.render({ 'a' => 123, 'x' => 'foo' }, { filters: [filters], strict_filters: true })
assert_equal '123 ', result
assert_equal 1, t.errors.count
assert_instance_of Liquid::UndefinedFilter, t.errors[0]
assert_equal 'Liquid error: undefined filter somefilter1', t.errors[0].message
end
def test_undefined_filters_raise
t = Template.parse("{{x | somefilter1 | upcase | somefilter2}}")
assert_raises UndefinedFilter do
t.render!({ 'x' => 'foo' }, { strict_filters: true })
end
end
def test_using_range_literal_works_as_expected
t = Template.parse("{% assign foo = (x..y) %}{{ foo }}")
result = t.render({ 'x' => 1, 'y' => 5 })
assert_equal '1..5', result
t = Template.parse("{% assign nums = (x..y) %}{% for num in nums %}{{ num }}{% endfor %}")
result = t.render({ 'x' => 1, 'y' => 5 })
assert_equal '12345', result
end
end