diff --git a/qemu-arm/Makefile b/qemu-arm/Makefile
index 2f03c0c8dae2d85b68da2c37ff392d211ec4aa13..03cc7db9e0d62c9c2a6dd65a7ae876ae871e9a4c 100644
--- a/qemu-arm/Makefile
+++ b/qemu-arm/Makefile
@@ -33,9 +33,16 @@ endif
 ## - gcc-arm-none-eabi-4_8-2014q1/share/gcc-arm-none-eabi/samples/src/qemu/Makefile
 LDFLAGS= --specs=nano.specs --specs=rdimon.specs -Wl,--gc-sections -Wl,-Map=$(@:.elf=.map)
 
+ifeq ($(RUN_TESTS), 1)
+SRC_C = \
+	test_main.c \
+
+else
 SRC_C = \
 	main.c \
 
+endif
+
 SRC_S = \
 
 OBJ =
@@ -43,12 +50,25 @@ OBJ += $(PY_O)
 OBJ += $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
 OBJ += $(addprefix $(BUILD)/, $(SRC_S:.s=.o))
 
+ifeq ($(RUN_TESTS), 1)
+INC += -I../tools/tinytest/
+OBJ += $(BUILD)/tinytest.o
+endif
+
 all: run
 
 run: $(BUILD)/flash.elf
-
 	qemu-system-arm -cpu cortex-m3 -nographic -monitor null -serial null -semihosting -kernel $(BUILD)/flash.elf
 
+.PHONY: $(BUILD)/genhdr/tests.h
+
+$(BUILD)/test_main.o: $(BUILD)/genhdr/tests.h
+$(BUILD)/genhdr/tests.h:
+	$(Q)echo "Generating $@";(cd ../tests; ../tools/tinytest-codegen.py) > $@
+
+$(BUILD)/tinytest.o:
+	$(Q)$(CC) $(CFLAGS) -DNO_FORKING -o $@ -c ../tools/tinytest/tinytest.c
+
 ## `$(LD)` doesn't seem to like `--specs` for some reason, but we can just use `$(CC)` here.
 $(BUILD)/flash.elf: $(OBJ)
 	$(Q)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJ) $(LIBS)
diff --git a/qemu-arm/test_main.c b/qemu-arm/test_main.c
new file mode 100644
index 0000000000000000000000000000000000000000..709bcf2f1b59642e6684515df61c9f6fea5a9dff
--- /dev/null
+++ b/qemu-arm/test_main.c
@@ -0,0 +1,87 @@
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "mpconfig.h"
+#include "nlr.h"
+#include "misc.h"
+#include "qstr.h"
+#include "lexer.h"
+#include "parse.h"
+#include "obj.h"
+#include "parsehelper.h"
+#include "compile.h"
+#include "runtime0.h"
+#include "runtime.h"
+#include "repl.h"
+
+#include "tinytest.h"
+#include "tinytest_macros.h"
+
+inline void do_str(const char *src) {
+    mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
+    if (lex == NULL) {
+        tt_abort_msg("Lexer initialization error");
+    }
+
+    mp_parse_error_kind_t parse_error_kind;
+    mp_parse_node_t pn = mp_parse(lex, MP_PARSE_FILE_INPUT, &parse_error_kind);
+
+    if (pn == MP_PARSE_NODE_NULL) {
+        mp_parse_show_exception(lex, parse_error_kind);
+        mp_lexer_free(lex);
+        tt_abort_msg("Parser error");
+    }
+
+    // parse okay
+    qstr source_name = mp_lexer_source_name(lex);
+    mp_lexer_free(lex);
+    mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, true);
+    mp_parse_node_free(pn);
+
+    if (module_fun == mp_const_none) {
+        tt_abort_msg("Computer error");
+    }
+
+    nlr_buf_t nlr;
+    if (nlr_push(&nlr) == 0) {
+        mp_call_function_0(module_fun);
+        nlr_pop();
+    } else {
+        mp_obj_print_exception((mp_obj_t)nlr.ret_val);
+        tt_abort_msg("Uncaught exception");
+    }
+end:
+    ;
+}
+
+#include "genhdr/tests.h"
+
+int main() {
+    const char a[] = {"sim"};
+    qstr_init();
+    mp_init();
+    int r = tinytest_main(1, (const char **) a, groups);
+    mp_deinit();
+    printf( "status: %i\n", r);
+    return r;
+}
+
+void gc_collect(void) {
+}
+
+mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
+    return NULL;
+}
+
+mp_import_stat_t mp_import_stat(const char *path) {
+    return MP_IMPORT_STAT_NO_EXIST;
+}
+
+mp_obj_t mp_builtin_open(uint n_args, const mp_obj_t *args) {
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_open_obj, 1, 2, mp_builtin_open);
+
+void nlr_jump_fail(void *val) {
+}