Test install

Makefile

@@ -78,6 +78,12 @@ compile-headers: $(_build_path)/CMakeCache.txt ## Compile the headers
 install: $(_build_path)/CMakeCache.txt compile ## Install the project
 	cmake --install $(_build_path) --config $(CONFIG) --component beman.optional --verbose
 
+.PHONY: clean-install
+clean-install:
+	-rm -rf .install
+
+realclean: clean-install
+
 ctest: $(_build_path)/CMakeCache.txt ## Run CTest on current build
 	cd $(_build_path) && ctest --output-on-failure -C $(CONFIG)
 
@@ -195,6 +201,18 @@ mrdocs: ## Build the docs with Doxygen
 	cd docs && NO_COLOR=1 mrdocs mrdocs.yml 2>&1 | sed 's/\x1b\[[0-9;]*m//g'
 	find docs/adoc -name '*.adoc' | xargs asciidoctor
 
+.PHONY: testinstall
+testinstall: install
+testinstall: ## Test the installed package
+	cmake -S installtest -B installtest/.build
+	cmake --build  installtest/.build --target test
+
+.PHONY: clean-testinstall
+clean-testinstall:
+	-rm -rf installtest/.build
+
+realclean: clean-testinstall
+
 # Help target
 .PHONY: help
 help: ## Show this help.

installtest/CMakeLists.txt

@@ -0,0 +1,28 @@
+cmake_minimum_required(VERSION 3.30)
+project(ConsumerBemanOptional)
+
+set(CMAKE_CXX_STANDARD 20)
+
+# Enable testing in this separate project
+enable_testing()
+
+# Find the installed package
+set(OPTIONAL_INSTALL_DIR "../.install/lib/cmake/beman.optional")
+find_package(
+    beman.optional
+    REQUIRED
+    PATHS ${OPTIONAL_INSTALL_DIR}
+    NO_DEFAULT_PATH
+)
+
+# Add your test executable
+add_executable(TestInstalledOptional test.cpp)
+
+# Link against the imported target
+target_link_libraries(TestInstalledOptional beman::optional)
+
+# Register the test with CTest
+add_test(NAME RunInstalledTest COMMAND TestInstalledOptional)
+
+# Ensure 'make test' first builds the 'all' target
+set(CMAKE_SKIP_TEST_ALL_DEPENDENCY FALSE)

installtest/test.cpp

@@ -0,0 +1,19 @@
+// testinstall/test.cpp                                               -*-C++-*-
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+#include <beman/optional/optional.hpp>
+#include <iostream>
+
+int main() {
+    beman::optional::optional<int> empty_opt{};
+    if (!empty_opt) {
+        std::cout << "empty_opt is empty!\n";
+    }
+
+    beman::optional::optional<int> opt{26};
+    if (opt) {
+        std::cout << "opt = " << *opt << "\n";
+    }
+
+    return 0;
+}