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feat(test) add assert for screenshot compare
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kisvegabor committed Jun 3, 2021
1 parent 0c4bca0 commit 2f7a005
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Showing 11 changed files with 262 additions and 6 deletions.
1 change: 1 addition & 0 deletions tests/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ include ../lvgl.mk

CSRCS += ${TEST_SRC}
CSRCS += unity/unity.c
CSRCS += unity/unity_support.c
CSRCS += lv_test_init.c

OBJEXT ?= .o
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1 change: 1 addition & 0 deletions tests/defines.py
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Expand Up @@ -97,6 +97,7 @@
"LV_IMG_CACHE_DEF_SIZE":32,

"LV_USE_LOG":1,
"LV_USE_LOG_LEVEL":"LV_LOG_LEVEL_TRACE",
"LV_LOG_PRINTF":1,
"LV_USE_FONT_SUBPX": 1,
"LV_FONT_SUBPX_BGR":1,
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2 changes: 1 addition & 1 deletion tests/lv_test_init.c
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Expand Up @@ -91,7 +91,7 @@ static void hal_init(void)
{
static lv_disp_draw_buf_t draw_buf;

lv_disp_draw_buf_init(&draw_buf, disp_buf1, NULL, LV_HOR_RES * LV_VER_RES);
lv_disp_draw_buf_init(&draw_buf, disp_buf1, NULL, HOR_RES * VER_RES);

static lv_disp_drv_t disp_drv;
lv_disp_drv_init(&disp_drv);
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2 changes: 0 additions & 2 deletions tests/lv_test_main.c
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@@ -1,8 +1,6 @@
#include "../lvgl.h"
#include <stdio.h>
#include <stdlib.h>
#include "lv_test_core/lv_test_core.h"
#include "lv_test_widgets/lv_test_label.h"

#if LV_BUILD_TEST && !defined(LV_BUILD_TEST_NO_MAIN)
#include <sys/time.h>
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4 changes: 2 additions & 2 deletions tests/main.py
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Expand Up @@ -8,13 +8,13 @@
files = test.prepare()

print("============================================")
print("Minimal config, 16 bit color depth")
print("Full config, 32 bit color depth")
print("============================================")
print("")

for f in files:
name = f[:-2] #test_foo.c -> test_foo
build.build(defines.minimal_16bit, name)
build.build(defines.full_32bit, name)


#build("Minimal config monochrome", minimal_monochrome)
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Binary file added tests/ref_imgs/scr1.png
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12 changes: 11 additions & 1 deletion tests/test_obj_tree.c
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Expand Up @@ -13,7 +13,7 @@ void test_obj_tree_1(void)

void test_obj_tree_2(void)
{
return;

lv_obj_create(lv_scr_act());
lv_obj_t * o2 = lv_obj_create(lv_scr_act());
lv_obj_create(lv_scr_act());
Expand All @@ -24,6 +24,16 @@ void test_obj_tree_2(void)

lv_obj_clean(lv_scr_act());
TEST_ASSERT_EQUAL(lv_obj_get_child_cnt(lv_scr_act()), 0);

lv_color_t c1 = lv_color_hex(0x444444);
lv_color_t c2 = lv_color_hex3(0x444);
TEST_ASSERT_EQUAL_COLOR(c1, c2);

lv_obj_remove_style_all(lv_scr_act());
lv_obj_set_style_bg_color(lv_scr_act(), lv_color_hex(0x112233), 0);
lv_obj_set_style_bg_opa(lv_scr_act(), LV_OPA_COVER, 0);

TEST_ASSERT_EQUAL_SCREENSHOT("scr1.png")
}

#endif
1 change: 1 addition & 0 deletions tests/unity/unity.c
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Expand Up @@ -4,6 +4,7 @@
[Released under MIT License. Please refer to license.txt for details]
============================================================================ */
#if LV_BUILD_TEST
#define UNITY_INCLUDE_PRINT_FORMATTED 1
#include "unity.h"
#include <stddef.h>

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5 changes: 5 additions & 0 deletions tests/unity/unity.h
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Expand Up @@ -4,6 +4,8 @@
[Released under MIT License. Please refer to license.txt for details]
========================================== */
#if LV_BUILD_TEST
#define UNITY_INCLUDE_PRINT_FORMATTED 1

#ifndef UNITY_FRAMEWORK_H
#define UNITY_FRAMEWORK_H
#define UNITY
Expand Down Expand Up @@ -660,4 +662,7 @@ void verifyTest(void);
#endif
#endif


#include "unity_support.h"

#endif /*LV_BUILD_TEST*/
198 changes: 198 additions & 0 deletions tests/unity/unity_support.c
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@@ -0,0 +1,198 @@
/**
* @file lv_test_assert.c
*
* Copyright 2002-2010 Guillaume Cottenceau.
*
* This software may be freely redistributed under the terms
* of the X11 license.
*
*/

/*********************
* INCLUDES
*********************/
#if LV_BUILD_TEST
#include "../lvgl.h"

#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include "unity.h"
#define PNG_DEBUG 3
#include <png.h>

/*********************
* DEFINES
*********************/
//#define REF_IMGS_PATH "lvgl/tests/lv_test_ref_imgs/"
#define REF_IMGS_PATH "ref_imgs/"

/**********************
* TYPEDEFS
**********************/
typedef struct {
int width, height;
png_byte color_type;
png_byte bit_depth;

png_structp png_ptr;
png_infop info_ptr;
int number_of_passes;
png_bytep * row_pointers;
}png_img_t;

/**********************
* STATIC PROTOTYPES
**********************/
static int read_png_file(png_img_t * p, const char* file_name);
static void png_release(png_img_t * p);

/**********************
* STATIC VARIABLES
**********************/

/**********************
* MACROS
**********************/

/**********************
* GLOBAL FUNCTIONS
**********************/

bool lv_test_assert_img_eq(const char * fn_ref)
{

char fn_ref_full[512];
sprintf(fn_ref_full, "%s%s", REF_IMGS_PATH, fn_ref);

png_img_t p;
int res = read_png_file(&p, fn_ref_full);
if(res < 0) return false;
uint8_t * screen_buf;

lv_obj_invalidate(lv_scr_act());
lv_refr_now(NULL);

extern lv_color_t test_fb[];

screen_buf = (uint8_t *)test_fb;

uint8_t * ptr_act = NULL;
const png_byte* ptr_ref = NULL;

bool err = false;
int x, y, i_buf = 0;
for (y = 0; y < p.height; y++) {
png_byte* row = p.row_pointers[y];
for (x = 0; x < p.width; x++) {
ptr_ref = &(row[x*3]);
ptr_act = &(screen_buf[i_buf*4]);

uint8_t tmp = ptr_act[0];
ptr_act[0] = ptr_act[2];
ptr_act[2] = tmp;

if(memcmp(ptr_act, ptr_ref, 3) != 0) {
err = true;
break;
}
i_buf++;
}
if(err) break;
}

png_release(&p);

if(err) {
uint32_t ref_px = 0;
uint32_t act_px = 0;
memcpy(&ref_px, ptr_ref, 3);
memcpy(&act_px, ptr_act, 3);
TEST_PRINTF("Diff in %s at (%d;%d), %x instead of %x)", fn_ref, x, y, act_px, ref_px);
return false;
}

return true;

}

/**********************
* STATIC FUNCTIONS
**********************/

static int read_png_file(png_img_t * p, const char* file_name)
{
char header[8]; // 8 is the maximum size that can be checked

/*open file and test for it being a png*/
FILE *fp = fopen(file_name, "rb");
if (!fp) {
TEST_PRINTF("%s", "PNG file %s could not be opened for reading");
return -1;
}

size_t rcnt = fread(header, 1, 8, fp);
if (rcnt != 8 || png_sig_cmp((png_const_bytep)header, 0, 8)) {
TEST_PRINTF("%s is not recognized as a PNG file", file_name);
return -1;
}

/*initialize stuff*/
p->png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);

if (!p->png_ptr) {
TEST_PRINTF("%s", "png_create_read_struct failed");
return -1;
}

p->info_ptr = png_create_info_struct(p->png_ptr);
if (!p->info_ptr) {
TEST_PRINTF("%s", "png_create_info_struct failed");
return -1;
}
if (setjmp(png_jmpbuf(p->png_ptr))) {
TEST_PRINTF("%s", "Error during init_io");
return -1;
}
png_init_io(p->png_ptr, fp);
png_set_sig_bytes(p->png_ptr, 8);

png_read_info(p->png_ptr, p->info_ptr);

p->width = png_get_image_width(p->png_ptr, p->info_ptr);
p->height = png_get_image_height(p->png_ptr, p->info_ptr);
p->color_type = png_get_color_type(p->png_ptr, p->info_ptr);
p->bit_depth = png_get_bit_depth(p->png_ptr, p->info_ptr);

p->number_of_passes = png_set_interlace_handling(p->png_ptr);
png_read_update_info(p->png_ptr, p->info_ptr);

/*read file*/
if (setjmp(png_jmpbuf(p->png_ptr))) {
TEST_PRINTF("%s", "Error during read_image");
return -1;
}
p->row_pointers = (png_bytep*) malloc(sizeof(png_bytep) * p->height);

int y;
for (y=0; y<p->height; y++)
p->row_pointers[y] = (png_byte*) malloc(png_get_rowbytes(p->png_ptr,p->info_ptr));

png_read_image(p->png_ptr, p->row_pointers);

fclose(fp);
return 0;
}

static void png_release(png_img_t * p)
{
int y;
for (y=0; y<p->height; y++) free(p->row_pointers[y]);

free(p->row_pointers);
}


#endif
42 changes: 42 additions & 0 deletions tests/unity/unity_support.h
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@@ -0,0 +1,42 @@

#ifndef LV_UNITY_SUPPORT_H
#define LV_UNITY_SUPPORT_H

#ifdef __cplusplus
extern "C" {
#endif

#include <stdbool.h>
#include "../../lvgl.h"

bool lv_test_assert_img_eq(const char * fn_ref);


#if LV_COLOR_DEPTH != 32
# define TEST_ASSERT_EQUAL_SCREENSHOT(path) TEST_IGNORE_MESSAGE("Requires LV_COLOR_DEPTH 32");
# define TEST_ASSERT_EQUAL_SCREENSHOT_MESSAGE(path, msg) TEST_PRINTF(msg); TEST_IGNORE_MESSAGE("Requires LV_COLOR_DEPTH 32");
#else

# define TEST_ASSERT_EQUAL_SCREENSHOT(path) if(LV_HOR_RES != 800 || LV_VER_RES != 480) { \
TEST_IGNORE_MESSAGE("Requires 800x480 resolution"); \
} else { \
TEST_ASSERT(lv_test_assert_img_eq(path)); \
}

# define TEST_ASSERT_EQUAL_SCREENSHOT_MESSAGE(path, msg) if(LV_HOR_RES != 800 || LV_VER_RES != 480) { \
TEST_PRINTF(msg); \
TEST_IGNORE_MESSAGE("Requires 800x480 resolution"); \
} else { \
TEST_ASSERT_MESSAGE(lv_test_assert_img_eq(path), msg); \
}
#endif

# define TEST_ASSERT_EQUAL_COLOR(c1, c2) TEST_ASSERT_EQUAL_UINT32(c1.full, c2.full)
# define TEST_ASSERT_EQUAL_COLOR_MESSAGE(c1, c2, msg) TEST_ASSERT_EQUAL_UINT32_MESSAGE(c1.full, c2.full, msg)

#ifdef __cplusplus
} /*extern "C"*/
#endif

#endif /*LV_UNITY_SUPPORT_H*/

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