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4de2be8c5f
To use, just include `Jekyll::LiquidExtensions` as you please:
```ruby
class SayHi < Liquid::Tag
include Jekyll::LiquidExtensions
def initialize(tag_name, markup, tokens)
@markup = markup.strip
end
def render(context)
"hi #{lookup_variable(context, @markup)}"
end
end
```
Fixes #2071.
32 lines
853 B
Ruby
32 lines
853 B
Ruby
require 'helper'
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class TestLiquidExtensions < Test::Unit::TestCase
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context "looking up a variable in a Liquid context" do
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class SayHi < Liquid::Tag
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include Jekyll::LiquidExtensions
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def initialize(tag_name, markup, tokens)
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@markup = markup.strip
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end
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def render(context)
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"hi #{lookup_variable(context, @markup)}"
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end
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end
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Liquid::Template.register_tag('say_hi', SayHi)
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setup do
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@template = Liquid::Template.parse("{% say_hi page.name %}") # Parses and compiles the template
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end
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should "extract the var properly" do
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assert_equal @template.render({'page' => {'name' => 'tobi'}}), 'hi tobi'
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end
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should "return the variable name if the value isn't there" do
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assert_equal @template.render({'page' => {'title' => 'tobi'}}), 'hi page.name'
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end
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end
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end
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