From 598328ff4592d2487504ebf5a30fbc46045c0085 Mon Sep 17 00:00:00 2001
From: Gregg Kellogg <gregg@greggkellogg.net>
Date: Tue, 16 Feb 2016 15:16:12 -0800
Subject: [PATCH] Add dataset_spec and repository_spec. From repository, use
 snapshot it repo supports snapshots for including dataset.

---
 Gemfile                    |  4 ++--
 lib/rdf/spec/dataset.rb    |  2 +-
 lib/rdf/spec/repository.rb |  2 +-
 spec/dataset_spec.rb       | 14 ++++++++++++++
 spec/repository_spec.rb    | 11 +++++++++++
 5 files changed, 29 insertions(+), 4 deletions(-)
 create mode 100644 spec/dataset_spec.rb
 create mode 100644 spec/repository_spec.rb

diff --git a/Gemfile b/Gemfile
index c518d14..cf8b9a2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,8 +2,8 @@ source "http://rubygems.org"
 
 gemspec
 
-gem "rdf",            git: "git://github.com/ruby-rdf/rdf.git",            branch: "develop"
-gem "rdf-isomorphic", git: "git://github.com/ruby-rdf/rdf-isomorphic.git", branch: "develop"
+gem 'rdf',            github: "ruby-rdf/rdf",             branch: "develop"
+gem 'rdf-isomorphic', github: "ruby-rdf/rdf-isomorphic",  branch: "develop"
 
 group :development do
   gem "wirble"
diff --git a/lib/rdf/spec/dataset.rb b/lib/rdf/spec/dataset.rb
index 8f83252..e8fc82a 100644
--- a/lib/rdf/spec/dataset.rb
+++ b/lib/rdf/spec/dataset.rb
@@ -7,7 +7,7 @@
     raise 'dataset must be set with `let(:dataset)' unless
       defined? dataset
 
-    if repository.empty?
+    if dataset.empty?
       raise "+dataset+ must respond be pre-populated with the statements in #{RDF::Spec::TRIPLES_FILE} in a before block"
     end
   end
diff --git a/lib/rdf/spec/repository.rb b/lib/rdf/spec/repository.rb
index 4a872c0..ba379f1 100644
--- a/lib/rdf/spec/repository.rb
+++ b/lib/rdf/spec/repository.rb
@@ -16,7 +16,7 @@
   end
 
   let(:mutable) { repository }
-  let(:dataset) { repository }
+  let(:dataset) { repository.supports?(:snapshots) ? repository.snapshot : repository }
   subject { repository }
 
   context 'as dataset' do
diff --git a/spec/dataset_spec.rb b/spec/dataset_spec.rb
new file mode 100644
index 0000000..28e7e0a
--- /dev/null
+++ b/spec/dataset_spec.rb
@@ -0,0 +1,14 @@
+require File.join(File.dirname(__FILE__), 'spec_helper')
+require 'rdf/spec/dataset'
+
+describe RDF::Dataset do
+
+  let(:dataset) do
+    RDF::Repository.new do |r|
+      r.insert(*RDF::Spec.quads)
+    end.snapshot
+  end
+
+  # @see lib/rdf/spec/dataset.rb in rdf-spec
+  it_behaves_like 'an RDF::Dataset'
+end
diff --git a/spec/repository_spec.rb b/spec/repository_spec.rb
new file mode 100644
index 0000000..c20c627
--- /dev/null
+++ b/spec/repository_spec.rb
@@ -0,0 +1,11 @@
+require File.join(File.dirname(__FILE__), 'spec_helper')
+require 'rdf/spec/repository'
+
+describe RDF::Repository do
+  # @see lib/rdf/spec/repository.rb in rdf-spec
+  it_behaves_like 'an RDF::Repository' do
+    # The available reference implementations are `RDF::Repository` and
+    # `RDF::Graph`, but a plain Ruby array will do fine as well:
+    let(:repository) { RDF::Repository.new }
+  end
+end