Add Telebugs::Promise and make Telebugs.notify return it

lib/telebugs.rb

@@ -1,7 +1,10 @@
 # frozen_string_literal: true
 
+require "concurrent"
+
 require_relative "telebugs/version"
 require_relative "telebugs/config"
+require_relative "telebugs/promise"
 
 module Telebugs
   # The general error that this library uses when it wants to raise.
@@ -13,7 +16,7 @@ def configure
     end
 
     def notify(error:)
-      Concurrent::Promises.future do
+      Telebugs::Promise.new(error) do
       end
     end
   end

lib/telebugs/promise.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module Telebugs
+  # Wraps Concurrent::Promise to provide a consistent API for promises that we
+  # can control.
+  class Promise
+    def initialize(*, &)
+      @future = Concurrent::Promises.future(*, &)
+    end
+
+    def value
+      @future.value
+    end
+  end
+end

test/test_promise.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+require "test_helper"
+
+class TestPromise < Minitest::Test
+  def test_future_value
+    promise = Telebugs::Promise.new { 1 + 1 }
+
+    assert_equal 2, promise.value
+  end
+end

test/test_telebugs.rb

@@ -20,6 +20,6 @@ def test_configure_configures_project_key
   def test_notify_returns_a_future
     future = Telebugs.notify(error: StandardError.new)
 
-    assert_instance_of Concurrent::Promises::Future, future
+    assert_instance_of Telebugs::Promise, future
   end
 end