describe "POST create" do 
 context "when params are valid" do 
 before { @some = Some.new(name:"Vincent", lat:48.872958, lng:2.380428) }
 it "should create an Thing position" do 
   expect { 
    post :create, homeless:{ name:@some.name, lat:@some.lat, lng:@some.lng }, format: :json }.to change(Some, :count).by 1 
    response.body.should be_json_eql(@some.to_json) 
 end 
 end 
 context "when invalid params" do 
   before {post :create, some:{name: "Vincent"}, format: :json } 
   subject {response} it { should eq(422) } 
   its(:body) {should have_json_path("errors")} 
 end 
end