tests: move base64 to a unit test

Move to a unit test, no need to build this for every platform we have.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

tests/lib/base64/CMakeLists.txt

@@ -1,8 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-
-cmake_minimum_required(VERSION 3.13.1)
-include($ENV{ZEPHYR_BASE}/cmake/app/boilerplate.cmake NO_POLICY_SCOPE)
-project(base64)
-
-FILE(GLOB app_sources src/*.c)
-target_sources(app PRIVATE ${app_sources})

tests/lib/base64/prj.conf

@@ -1,3 +0,0 @@
-CONFIG_BASE64=y
-CONFIG_ZTEST=y
-CONFIG_ZTEST_STACKSIZE=2048

tests/unit/base64/CMakeLists.txt

@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+
+project(base64)
+set(SOURCES main.c)
+include($ENV{ZEPHYR_BASE}/subsys/testsuite/unittest.cmake)

tests/unit/base64/main.c

@@ -28,6 +28,8 @@
 #include <ztest.h>
 #include <sys/base64.h>
 
+#include "../../../lib/os/base64.c"
+
 static const unsigned char base64_test_dec[64] = {
 	0x24, 0x48, 0x6E, 0x56, 0x87, 0x62, 0x5A, 0xBD,
 	0xBF, 0x17, 0xD9, 0xA2, 0xC4, 0x17, 0x1A, 0x01,

tests/unit/base64/testcase.yaml

@@ -1,3 +1,4 @@
 tests:
   libraries.encoding:
     tags: base64
+    type: unit