Added .unshare_project_with_group to projects (NARKOZ#395)

lib/gitlab/client/projects.rb

@@ -449,6 +449,18 @@ def share_project_with_group(project, id, group_access)
       post("/projects/#{url_encode project}/share", body: { group_id: id, group_access: group_access })
     end
 
+    # Unshare project with group.
+    #
+    # @example
+    #   Gitlab.unshare_project_with_group('gitlab', 2)
+    #
+    # @param  [Integer, String] project The ID or path of a project.
+    # @param  [Integer] id The ID of a group.
+    # @return [void] This API call returns an empty response body.
+    def unshare_project_with_group(project, id)
+      delete("/projects/#{url_encode project}/share/#{id}")
+    end
+
     # Stars a project.
     # @see https://docs.gitlab.com/ce/api/projects.html#star-a-project
     #

spec/gitlab/client/projects_spec.rb

@@ -578,6 +578,17 @@
     end
   end
 
+  describe ".unshare_project_with_group" do
+    before do
+      stub_delete("/projects/3/share/10", "group")
+      @group = Gitlab.unshare_project_with_group(3, 10)
+    end
+
+    it "gets the correct resource" do
+      expect(a_delete("/projects/3/share/10")).to have_been_made
+    end
+  end
+
   describe ".star_project" do
     before do
       stub_post("/projects/3/star", "project_star")