From 2e9039634dc8c3048d0fd111b44fed4a60eb44ab Mon Sep 17 00:00:00 2001
From: Alfi Maulana <alfi.maulana.f@gmail.com>
Date: Sun, 21 Apr 2024 22:12:30 +0700
Subject: [PATCH] test: add test for testing `setup_go` function

---
 CMakeLists.txt               |  2 +-
 test/CMakeLists.txt          |  6 ++++++
 test/cmake/SetupGoTest.cmake | 38 ++++++++++++++++++++++++++++++++++++
 3 files changed, 45 insertions(+), 1 deletion(-)
 create mode 100644 test/cmake/SetupGoTest.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ee6e149..3703936 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.19)
+cmake_minimum_required(VERSION 3.29)
 
 project(
   SetupGo
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index b506921..3855e30 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -4,6 +4,7 @@ function(add_cmake_test FILE)
       NAME ${NAME}
       COMMAND ${CMAKE_COMMAND}
         -D CMAKE_MODULE_PATH=${CMAKE_MODULE_PATH}
+        -D CMAKE_BUILD_DIR=${CMAKE_CURRENT_SOURCE_DIR}/build
         -D TEST_MATCHES=^${NAME}$
         -P ${CMAKE_CURRENT_SOURCE_DIR}/${FILE}
     )
@@ -15,3 +16,8 @@ add_cmake_test(
   "Create directory recursively"
   # Add more test cases here.
 )
+
+add_cmake_test(
+  cmake/SetupGoTest.cmake
+  "Set up the latest version of Go"
+)
diff --git a/test/cmake/SetupGoTest.cmake b/test/cmake/SetupGoTest.cmake
new file mode 100644
index 0000000..b541e3c
--- /dev/null
+++ b/test/cmake/SetupGoTest.cmake
@@ -0,0 +1,38 @@
+# Matches everything if not defined
+if(NOT TEST_MATCHES)
+  set(TEST_MATCHES ".*")
+endif()
+
+set(TEST_COUNT 0)
+
+include(SetupGo)
+
+if("Set up the latest version of Go" MATCHES ${TEST_MATCHES})
+  math(EXPR TEST_COUNT "${TEST_COUNT} + 1")
+
+  setup_go()
+
+  if(NOT DEFINED GO_EXECUTABLE)
+    message(FATAL_ERROR "The GO_EXECUTABLE variable should be defined")
+  endif()
+
+  if(NOT EXISTS ${GO_EXECUTABLE})
+    message(FATAL_ERROR "The Go executable at '${GO_EXECUTABLE}' should exist")
+  endif()
+
+  if(NOT IS_EXECUTABLE ${GO_EXECUTABLE})
+    message(FATAL_ERROR "The Go executable at '${GO_EXECUTABLE}' should be executable")
+  endif()
+
+  execute_process(
+    COMMAND ${GO_EXECUTABLE} version
+    RESULT_VARIABLE RES
+  )
+  if(NOT RES EQUAL 0)
+    message(FATAL_ERROR "It should not fail to execute the Go executable")
+  endif()
+endif()
+
+if(TEST_COUNT LESS_EQUAL 0)
+  message(FATAL_ERROR "Nothing to test with: ${TEST_MATCHES}")
+endif()