wscript: refactoring, replace --enable-fs-tests with --enable-tests

* Run filesystem tests in sequential order, to avoid tests being run
before filesystem_stdio DLL is linked
* Include new interface test in filesystem

filesystem/wscript

@@ -1,12 +1,7 @@
 #!/usr/bin/env python
 
-from waflib.Tools import waf_unit_test
-
 def options(opt):
-	grp = opt.add_option_group('filesystem_stdio options')
-
-	grp.add_option('--enable-fs-tests', action='store_true', dest = 'FS_TESTS', default = False,
-		help = 'enable filesystem_stdio tests')
+	pass
 
 def configure(conf):
 	nortti = {
@@ -15,8 +10,6 @@ def configure(conf):
 	}
 	conf.env.append_unique('CXXFLAGS', conf.get_flags_by_compiler(nortti, conf.env.COMPILER_CC))
 
-	conf.env.FS_TESTS = conf.options.FS_TESTS
-
 	if conf.env.DEST_OS != 'android':
 		if conf.env.cxxshlib_PATTERN.startswith('lib'):
 			conf.env.cxxshlib_PATTERN = conf.env.cxxshlib_PATTERN[3:]
@@ -32,21 +25,25 @@ def build(bld):
 		libs += [ 'public' ]
 
 	bld.shlib(target = 'filesystem_stdio',
-		features = 'cxx',
+		features = 'cxx seq',
 		source = bld.path.ant_glob(['*.c', '*.cpp']),
 		use = libs,
 		install_path = bld.env.LIBDIR,
 		subsystem = bld.env.MSVC_SUBSYSTEM)
 
-	if bld.env.FS_TESTS:
+	if bld.env.TESTS:
 		# build in same module, so dynamic linking will work
 		# for now (until we turn libpublic to shared module lol)
-		bld.program(features = 'test',
-			source = 'tests/caseinsensitive.c',
-			target = 'test_caseinsensitive',
+		tests = {
+			'caseinsensitive' : 'tests/caseinsensitive.c',
+			'interface' : 'tests/interface.cpp',
+		}
+
+		for i in tests:
+			bld.program(features = 'test seq',
+				source = tests[i],
+				target = 'test_%s' % i,
 				use = libs + ['DL'],
 				rpath = '$ORIGIN',
 				subsystem = bld.env.CONSOLE_SUBSYSTEM,
 				install_path = None)
-		bld.add_post_fun(waf_unit_test.summary)
-		bld.add_post_fun(waf_unit_test.set_exit_code)

wscript

@@ -3,6 +3,7 @@
 # a1batross, mittorn, 2018
 
 from waflib import Build, Context, Logs
+from waflib.Tools import waf_unit_test
 import sys
 import os
 
@@ -127,6 +128,9 @@ def options(opt):
 	grp.add_option('--disable-werror', action = 'store_true', dest = 'DISABLE_WERROR', default = False,
 		help = 'disable compilation abort on warning')
 
+	grp.add_option('--enable-tests', action = 'store_true', dest = 'TESTS', default = False,
+		help = 'enable building standalone tests (does not enable engine tests!) [default: %default]')
+
 	grp = opt.add_option_group('Renderers options')
 
 	grp.add_option('--enable-all-renderers', action='store_true', dest='ALL_RENDERERS', default=False,
@@ -325,6 +329,7 @@ def configure(conf):
 		conf.env.append_unique('CFLAGS', cflags)
 		conf.env.append_unique('CXXFLAGS', cxxflags)
 
+	conf.env.TESTS         = conf.options.TESTS
 	conf.env.ENABLE_UTILS  = conf.options.ENABLE_UTILS
 	conf.env.ENABLE_FUZZER = conf.options.ENABLE_FUZZER
 	conf.env.DEDICATED     = conf.options.DEDICATED
@@ -466,3 +471,7 @@ def build(bld):
 			continue
 
 		bld.add_subproject(i.name)
+
+	if bld.env.TESTS:
+		bld.add_post_fun(waf_unit_test.summary)
+		bld.add_post_fun(waf_unit_test.set_exit_code)