zephyr: Add support for binary with builtin testsuite.

If TEST is defined, file it refers to will be used as the testsuite
source (should be generated with tools/tinytest-codegen.py).

"make-bin-testsuite" script is introduce to build such a binary.

ports/zephyr/main.c

@@ -41,6 +41,13 @@
 #include "lib/utils/pyexec.h"
 #include "lib/mp-readline/readline.h"
 
+#ifdef TEST
+#include "lib/upytesthelper/upytesthelper.h"
+#include "lib/tinytest/tinytest.c"
+#include "lib/upytesthelper/upytesthelper.c"
+#include TEST
+#endif
+
 static char *stack_top;
 static char heap[MICROPY_HEAP_SIZE];
 
@@ -95,6 +102,14 @@ int real_main(void) {
 
     init_zephyr();
 
+    #ifdef TEST
+    static const char *argv[] = {"test"};
+    upytest_set_heap(heap, heap + sizeof(heap));
+    int r = tinytest_main(1, argv, groups);
+    printf("status: %d\n", r);
+    return 0;
+    #endif
+
 soft_reset:
     #if MICROPY_ENABLE_GC
     gc_init(heap, heap + sizeof(heap));

ports/zephyr/make-bin-testsuite

@@ -0,0 +1,20 @@
+#!/bin/sh
+#
+# This is a wrapper for make to build a binary with builtin testsuite.
+# It should be run just like make (i.e. extra vars can be passed on the
+# command line, etc.), e.g.:
+#
+# ./make-bin-testsuite BOARD=qemu_cortex_m3
+# ./make-bin-testsuite BOARD=qemu_cortex_m3 run
+#
+
+(cd ../../tests; ./run-tests --write-exp)
+(cd ../../tests; ./run-tests --list-tests --target=minimal \
+    -e async -e intbig -e int_big -e builtin_help -e memstats -e bytes_compare3 -e class_reverse_op \
+    -e /set -e frozenset -e complex -e const -e native -e viper \
+    -e 'float_divmod\.' -e float_parse_doubleprec -e float/true_value -e float/types \
+    | ../tools/tinytest-codegen.py --stdin) > bin-testsuite.c
+
+make \
+    CFLAGS_EXTRA='-DMP_CONFIGFILE="<mpconfigport_bin_testsuite.h>" -DTEST=\"bin-testsuite.c\" -DNO_FORKING' \
+    "$@"

ports/zephyr/mpconfigport_bin_testsuite.h

@@ -0,0 +1,31 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Linaro Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "mpconfigport.h"
+
+#ifdef TEST
+#include "lib/upytesthelper/upytesthelper.h"
+#define MP_PLAT_PRINT_STRN(str, len) upytest_output(str, len)
+#endif