Pool: Make Pool#client method public

spec/helpers/networking/connection_pool_spec.cr

@@ -58,8 +58,24 @@ Spectator.describe Invidious::ConnectionPool do
       expect(pool.post("/post") { |r| r.body_io.gets_to_end }).to eq("post")
     end
 
-    # it "Can checkout a client" do
-    # end
+    it "Allows more than one clients to be checked out (if applicable)" do
+      pool = Invidious::ConnectionPool::Pool.new(URI.parse("http://localhost:12345"), max_capacity: 100)
+
+      pool.checkout do | client |
+        expect(pool.post("/post").body).to eq("post")
+      end
+    end
+
+    it "Can make multiple requests with the same client" do
+      pool = Invidious::ConnectionPool::Pool.new(URI.parse("http://localhost:12345"), max_capacity: 100)
+
+      pool.checkout do | client |
+        expect(client.get("/get").body).to eq("get")
+        expect(client.post("/post").body).to eq("post")
+        expect(client.get("/get").body).to eq("get")
+      end
+
+    end
 
     it "Allows concurrent requests" do
       pool = Invidious::ConnectionPool::Pool.new(URI.parse("http://localhost:12345"), max_capacity: 100)

src/invidious/connection/pool.cr

@@ -32,7 +32,7 @@ module Invidious::ConnectionPool
       # Streaming API for {{method.id.upcase}} request.
       # The response will have its body as an `IO` accessed via `HTTP::Client::Response#body_io`.
       def {{method.id}}(*args, **kwargs, &)
-        self.client do | client |
+        self.checkout do | client |
           client.{{method.id}}(*args, **kwargs) do | response |
 
             result = yield response
@@ -47,14 +47,14 @@ module Invidious::ConnectionPool
       # Executes a {{method.id.upcase}} request.
       # The response will have its body as a `String`, accessed via `HTTP::Client::Response#body`.
       def {{method.id}}(*args, **kwargs)
-        self.client do | client |
+        self.checkout do | client |
           return client.{{method.id}}(*args, **kwargs)
         end
       end
     {% end %}
 
     # Checks out a client in the pool
-    private def client(&)
+    def checkout(&)
       # If a client has been deleted from the pool
       # we won't try to release it
       client_exists_in_pool = true