resolves #210 fix deep interdoc xref when using Asciidoctor 2 (PR #221)

2 files changed, 110 insertions, 1 deletions

diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index a179659..f8f8744 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,2 +1,10 @@
-require 'rspec'
 require 'asciidoctor-epub3'
+
+RSpec.configure do |config|
+  # configure rspec here
+end
+
+RSpec::Matchers.define :have_size do |expected|
+  match {|actual| actual.size == expected }
+  failure_message {|actual| %(expected #{actual} to have size #{expected}, but was #{actual.size}) }
+end
diff --git a/spec/xref_spec.rb b/spec/xref_spec.rb
new file mode 100644
index 0000000..16235ed
--- /dev/null
+++ b/spec/xref_spec.rb
@@ -0,0 +1,101 @@
+require_relative 'spec_helper'
+require 'digest'
+require 'fileutils' unless defined? FileUtils
+
+describe 'Asciidoctor::Epub3::Converter - Xref' do
+  context 'inter-chapter' do
+    it 'should resolve xref to top of chapter' do |example|
+      signature = Digest::SHA1.hexdigest example.full_description
+      book_dir = File.join __dir__, %(book-#{signature})
+      begin
+        Dir.mkdir book_dir
+        book_file = File.join book_dir, 'book.adoc'
+        chapter_a_file = File.join book_dir, 'chapter-a.adoc'
+        chapter_b_file = File.join book_dir, 'chapter-b.adoc'
+
+        File.write chapter_a_file, <<~'EOS', encoding: 'UTF-8'
+        = Chapter A
+
+        This is chapter A.
+        There's not much too it.
+
+        Time to move on to <<chapter-b#>>.
+        EOS
+
+        File.write chapter_b_file, <<~'EOS', encoding: 'UTF-8'
+        = Chapter B
+
+        Not much to show here either.
+        EOS
+
+        File.write book_file, <<~'EOS', encoding: 'UTF-8'
+        = Book Title
+        :doctype: book
+        :idprefix:
+        :idseparator: -
+
+        include::chapter-a.adoc[]
+
+        include::chapter-b.adoc[]
+        EOS
+
+        doc = Asciidoctor.load_file book_file, backend: 'epub3', header_footer: true
+        doc.convert
+        spine_items = doc.references[:spine_items]
+        (expect spine_items).to have_size 2
+        chapter_a_content = doc.references[:spine_items][0].content
+        (expect chapter_a_content).to include '<a id="xref--chapter-b" href="chapter-b.xhtml" class="xref">Chapter B</a>'
+      ensure
+        FileUtils.rm_r book_dir, force: true, secure: true
+      end
+    end
+
+    it 'should resolve xref to section inside chapter' do |example|
+      signature = Digest::SHA1.hexdigest example.full_description
+      book_dir = File.join __dir__, %(book-#{signature})
+      begin
+        Dir.mkdir book_dir
+        book_file = File.join book_dir, 'book.adoc'
+        chapter_a_file = File.join book_dir, 'chapter-a.adoc'
+        chapter_b_file = File.join book_dir, 'chapter-b.adoc'
+
+        File.write chapter_a_file, <<~'EOS', encoding: 'UTF-8'
+        = Chapter A
+
+        This is chapter A.
+        There's not much too it.
+
+        Time to move on to <<chapter-b#getting-started>>.
+        EOS
+
+        File.write chapter_b_file, <<~'EOS', encoding: 'UTF-8'
+        = Chapter B
+
+        == Getting Started
+
+        Now we can really get to it!
+        EOS
+
+        File.write book_file, <<~'EOS', encoding: 'UTF-8'
+        = Book Title
+        :doctype: book
+        :idprefix:
+        :idseparator: -
+
+        include::chapter-a.adoc[]
+
+        include::chapter-b.adoc[]
+        EOS
+
+        doc = Asciidoctor.load_file book_file, backend: 'epub3', header_footer: true
+        doc.convert
+        spine_items = doc.references[:spine_items]
+        (expect spine_items).to have_size 2
+        chapter_a_content = doc.references[:spine_items][0].content
+        (expect chapter_a_content).to include '<a id="xref--chapter-b--getting-started" href="chapter-b.xhtml#getting-started" class="xref">Getting Started</a>'
+      ensure
+        FileUtils.rm_r book_dir, force: true, secure: true
+      end
+    end
+  end
+end