From d65744b1fc34c127c97de1c926f19ac58b502b1a Mon Sep 17 00:00:00 2001
From: David Leeds <david.leeds@chargepoint.com>
Date: Fri, 7 May 2021 06:22:07 -0700
Subject: [PATCH] Enable default construction of PendingAsyncCall (#180)

This is helpful in use cases where a user defined class wants to
store a PendingAsyncCall as a member variable, or in a STL
container.
---
 include/sdbus-c++/IProxy.h                       |  2 ++
 tests/integrationtests/DBusAsyncMethodsTests.cpp | 16 ++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/include/sdbus-c++/IProxy.h b/include/sdbus-c++/IProxy.h
index 0594bf2..0d00131 100644
--- a/include/sdbus-c++/IProxy.h
+++ b/include/sdbus-c++/IProxy.h
@@ -293,6 +293,8 @@ namespace sdbus {
     class PendingAsyncCall
     {
     public:
+        PendingAsyncCall() = default;
+
         /*!
          * @brief Cancels the delivery of the pending asynchronous call result
          *
diff --git a/tests/integrationtests/DBusAsyncMethodsTests.cpp b/tests/integrationtests/DBusAsyncMethodsTests.cpp
index 7c185f4..cb0f5cc 100644
--- a/tests/integrationtests/DBusAsyncMethodsTests.cpp
+++ b/tests/integrationtests/DBusAsyncMethodsTests.cpp
@@ -201,6 +201,22 @@ TEST_F(SdbusTestObject, AnswersThatAsyncCallIsNotPendingAfterItHasBeenCompleted)
     ASSERT_TRUE(waitUntil([&call](){ return !call.isPending(); }));
 }
 
+TEST_F(SdbusTestObject, AnswersThatDefaultConstructedAsyncCallIsNotPending)
+{
+    sdbus::PendingAsyncCall call;
+
+    ASSERT_FALSE(call.isPending());
+}
+
+TEST_F(SdbusTestObject, SupportsAsyncCallCopyAssignment)
+{
+    sdbus::PendingAsyncCall call;
+
+    call = m_proxy->doOperationClientSideAsync(100);
+
+    ASSERT_TRUE(call.isPending());
+}
+
 TEST_F(SdbusTestObject, InvokesErroneousMethodAsynchronouslyOnClientSide)
 {
     std::promise<uint32_t> promise;