API: Endpoint to expose personal snippets as /snippets

Adding the necessary API for the new /snippets Restful resource
added with this commit. Added a new Grape class `Snippets`, as
well as a `PersonalSnippet` entity.

Issue: #20042
Merge-Request: !6373
Signed-off-by: Guyzmo <guyzmo+gitlab+pub@m0g.net>

1 files changed, 34 insertions, 25 deletions

diff --git a/spec/finders/snippets_finder_spec.rb b/spec/finders/snippets_finder_spec.rb
index 28bdc18e840..4427443208a 100644
--- a/spec/finders/snippets_finder_spec.rb
+++ b/spec/finders/snippets_finder_spec.rb
@@ -9,65 +9,74 @@ describe SnippetsFinder do
   let(:project2) { create(:empty_project, :private, group: group) }
 
   context ':all filter' do
-    before do
-      @snippet1 = create(:personal_snippet, :private)
-      @snippet2 = create(:personal_snippet, :internal)
-      @snippet3 = create(:personal_snippet, :public)
-    end
+    let!(:snippet1) { create(:personal_snippet, :private) }
+    let!(:snippet2) { create(:personal_snippet, :internal) }
+    let!(:snippet3) { create(:personal_snippet, :public) }
 
     it "returns all private and internal snippets" do
       snippets = SnippetsFinder.new.execute(user, filter: :all)
-      expect(snippets).to include(@snippet2, @snippet3)
-      expect(snippets).not_to include(@snippet1)
+      expect(snippets).to include(snippet2, snippet3)
+      expect(snippets).not_to include(snippet1)
     end
 
     it "returns all public snippets" do
       snippets = SnippetsFinder.new.execute(nil, filter: :all)
-      expect(snippets).to include(@snippet3)
-      expect(snippets).not_to include(@snippet1, @snippet2)
+      expect(snippets).to include(snippet3)
+      expect(snippets).not_to include(snippet1, snippet2)
     end
   end
 
-  context ':by_user filter' do
-    before do
-      @snippet1 = create(:personal_snippet, :private,  author: user)
-      @snippet2 = create(:personal_snippet, :internal, author: user)
-      @snippet3 = create(:personal_snippet, :public,   author: user)
+  context ':public filter' do
+    let!(:snippet1) { create(:personal_snippet, :private) }
+    let!(:snippet2) { create(:personal_snippet, :internal) }
+    let!(:snippet3) { create(:personal_snippet, :public) }
+
+    it "returns public public snippets" do
+      snippets = SnippetsFinder.new.execute(nil, filter: :public)
+
+      expect(snippets).to include(snippet3)
+      expect(snippets).not_to include(snippet1, snippet2)
     end
+  end
+
+  context ':by_user filter' do
+    let!(:snippet1) { create(:personal_snippet, :private, author: user) }
+    let!(:snippet2) { create(:personal_snippet, :internal, author: user) }
+    let!(:snippet3) { create(:personal_snippet, :public, author: user) }
 
     it "returns all public and internal snippets" do
       snippets = SnippetsFinder.new.execute(user1, filter: :by_user, user: user)
-      expect(snippets).to include(@snippet2, @snippet3)
-      expect(snippets).not_to include(@snippet1)
+      expect(snippets).to include(snippet2, snippet3)
+      expect(snippets).not_to include(snippet1)
     end
 
     it "returns internal snippets" do
       snippets = SnippetsFinder.new.execute(user, filter: :by_user, user: user, scope: "are_internal")
-      expect(snippets).to include(@snippet2)
-      expect(snippets).not_to include(@snippet1, @snippet3)
+      expect(snippets).to include(snippet2)
+      expect(snippets).not_to include(snippet1, snippet3)
     end
 
     it "returns private snippets" do
       snippets = SnippetsFinder.new.execute(user, filter: :by_user, user: user, scope: "are_private")
-      expect(snippets).to include(@snippet1)
-      expect(snippets).not_to include(@snippet2, @snippet3)
+      expect(snippets).to include(snippet1)
+      expect(snippets).not_to include(snippet2, snippet3)
     end
 
     it "returns public snippets" do
       snippets = SnippetsFinder.new.execute(user, filter: :by_user, user: user, scope: "are_public")
-      expect(snippets).to include(@snippet3)
-      expect(snippets).not_to include(@snippet1, @snippet2)
+      expect(snippets).to include(snippet3)
+      expect(snippets).not_to include(snippet1, snippet2)
     end
 
     it "returns all snippets" do
       snippets = SnippetsFinder.new.execute(user, filter: :by_user, user: user)
-      expect(snippets).to include(@snippet1, @snippet2, @snippet3)
+      expect(snippets).to include(snippet1, snippet2, snippet3)
     end
 
     it "returns only public snippets if unauthenticated user" do
       snippets = SnippetsFinder.new.execute(nil, filter: :by_user, user: user)
-      expect(snippets).to include(@snippet3)
-      expect(snippets).not_to include(@snippet2, @snippet1)
+      expect(snippets).to include(snippet3)
+      expect(snippets).not_to include(snippet2, snippet1)
     end
   end