lib/upytesthelper: MicroPython test helper layer on top of tinytest.
Tinytest is classical assert-style framework, but MicroPython tests work in different way - they produce content, and that content should be matched against expected one to see if test passes. upytesthelper exactly adds helper functions to make that possible.
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Paul Sokolovsky
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126
lib/upytesthelper/upytesthelper.c
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126
lib/upytesthelper/upytesthelper.c
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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Linaro Limited
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <string.h>
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#include "py/mphal.h"
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#include "py/gc.h"
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#include "py/runtime.h"
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#include "py/compile.h"
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#include "upytesthelper.h"
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static const char *test_exp_output;
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static int test_exp_output_len, test_rem_output_len;
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static int test_failed;
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static void *heap_start, *heap_end;
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void upytest_set_heap(void *start, void *end) {
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heap_start = start;
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heap_end = end;
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}
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void upytest_set_expected_output(const char *output, unsigned len) {
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test_exp_output = output;
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test_exp_output_len = test_rem_output_len = len;
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test_failed = false;
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}
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bool upytest_is_failed(void) {
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if (test_failed) {
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return true;
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}
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#if 0
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if (test_rem_output_len != 0) {
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printf("remaining len: %d\n", test_rem_output_len);
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}
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#endif
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return test_rem_output_len != 0;
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}
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// MP_PLAT_PRINT_STRN() should be redirected to this function.
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// It will pass-thru any content to mp_hal_stdout_tx_strn_cooked()
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// (the dfault value of MP_PLAT_PRINT_STRN), but will also match
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// it to the expected output as set by upytest_set_expected_output().
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// If mismatch happens, upytest_is_failed() returns true.
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void upytest_output(const char *str, mp_uint_t len) {
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if (!test_failed) {
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if (len > test_rem_output_len) {
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test_failed = true;
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} else {
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test_failed = memcmp(test_exp_output, str, len);
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#if 0
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if (test_failed) {
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printf("failed after char %u, within %d chars, res: %d\n",
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test_exp_output_len - test_rem_output_len, (int)len, test_failed);
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for (int i = 0; i < len; i++) {
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if (str[i] != test_exp_output[i]) {
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printf("%d %02x %02x\n", i, str[i], test_exp_output[i]);
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}
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}
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}
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#endif
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test_exp_output += len;
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test_rem_output_len -= len;
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}
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}
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mp_hal_stdout_tx_strn_cooked(str, len);
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}
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void upytest_execute_test(const char *src) {
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// To provide clean room for each test, interpreter and heap are
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// reinitialized before running each.
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gc_init(heap_start, heap_end);
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mp_init();
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mp_obj_list_init(mp_sys_path, 0);
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mp_obj_list_init(mp_sys_argv, 0);
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nlr_buf_t nlr;
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if (nlr_push(&nlr) == 0) {
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mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
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qstr source_name = lex->source_name;
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mp_parse_tree_t parse_tree = mp_parse(lex, MP_PARSE_FILE_INPUT);
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mp_obj_t module_fun = mp_compile(&parse_tree, source_name, MP_EMIT_OPT_NONE, false);
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mp_call_function_0(module_fun);
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nlr_pop();
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} else {
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mp_obj_t exc = (mp_obj_t)nlr.ret_val;
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if (mp_obj_is_subclass_fast(mp_obj_get_type(exc), &mp_type_SystemExit)) {
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// Assume that sys.exit() is called to skip the test.
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// TODO: That can be always true, we should set up convention to
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// use specific exit code as skip indicator.
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tinytest_set_test_skipped_();
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goto end;
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}
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mp_obj_print_exception(&mp_plat_print, exc);
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tt_abort_msg("Uncaught exception\n");
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}
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if (upytest_is_failed()) {
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tinytest_set_test_failed_();
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}
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end:
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mp_deinit();
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}
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37
lib/upytesthelper/upytesthelper.h
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37
lib/upytesthelper/upytesthelper.h
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@ -0,0 +1,37 @@
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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Linaro Limited
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdbool.h>
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#include <stdio.h>
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#include "py/mpconfig.h"
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#include "lib/tinytest/tinytest.h"
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#include "lib/tinytest/tinytest_macros.h"
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void upytest_set_heap(void *start, void *end);
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void upytest_set_expected_output(const char *output, unsigned len);
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void upytest_execute_test(const char *src);
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void upytest_output(const char *str, mp_uint_t len);
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bool upytest_is_failed(void);
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