Method on_tracker_accept

cpp/src/delivery_test.cpp:111–114

    }

    void on_tracker_accept(proton::tracker &t) override {
        ASSERT_EQUAL(test_tag, t.tag());
        tracker_accept_counter++;
    }

    void on_tracker_settle(proton::tracker &t) override {
        ASSERT_EQUAL(test_tag, t.tag());