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|
# frozen_string_literal: true
require 'rails_helper'
describe Banzai::Filter::FrontMatterFilter do
include FilterSpecHelper
it 'allows for `encoding:` before the front matter' do
content = <<~MD
# encoding: UTF-8
---
foo: foo
bar: bar
---
# Header
Content
MD
output = filter(content)
expect(output).not_to match 'encoding'
end
it 'converts YAML front matter to a fenced code block' do
content = <<~MD
---
foo: :foo_symbol
bar: :bar_symbol
---
# Header
Content
MD
output = filter(content)
aggregate_failures do
expect(output).not_to include '---'
expect(output).to include "```yaml\nfoo: :foo_symbol\n"
end
end
it 'converts TOML frontmatter to a fenced code block' do
content = <<~MD
+++
foo = :foo_symbol
bar = :bar_symbol
+++
# Header
Content
MD
output = filter(content)
aggregate_failures do
expect(output).not_to include '+++'
expect(output).to include "```toml\nfoo = :foo_symbol\n"
end
end
it 'converts JSON front matter to a fenced code block' do
content = <<~MD
;;;
{
"foo": ":foo_symbol",
"bar": ":bar_symbol"
}
;;;
# Header
Content
MD
output = filter(content)
aggregate_failures do
expect(output).not_to include ';;;'
expect(output).to include "```json\n{\n \"foo\": \":foo_symbol\",\n"
end
end
it 'converts arbitrary front matter to a fenced code block' do
content = <<~MD
---arbitrary
foo = :foo_symbol
bar = :bar_symbol
---
# Header
Content
MD
output = filter(content)
aggregate_failures do
expect(output).not_to include '---arbitrary'
expect(output).to include "```arbitrary\nfoo = :foo_symbol\n"
end
end
context 'on content without front matter' do
it 'returns the content unmodified' do
content = <<~MD
# This is some Markdown
It has no YAML front matter to parse.
MD
expect(filter(content)).to eq content
end
end
context 'on front matter without content' do
it 'converts YAML front matter to a fenced code block' do
content = <<~MD
---
foo: :foo_symbol
bar: :bar_symbol
---
MD
output = filter(content)
aggregate_failures do
expect(output).to eq <<~MD
```yaml
foo: :foo_symbol
bar: :bar_symbol
```
MD
end
end
end
end
|
