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notcurses/src/tests/cell.cpp

405 lines
14 KiB
C++

#include "main.h"
#include "lib/egcpool.h"
TEST_CASE("Cell") {
auto nc_ = testing_notcurses();
if(!nc_){
return;
}
if(!notcurses_canutf8(nc_)){
CHECK(0 == notcurses_stop(nc_));
return;
}
struct ncplane* n_ = notcurses_stdplane(nc_);
REQUIRE(nullptr != n_);
SUBCASE("EGCs") {
nccell c = NCCELL_TRIVIAL_INITIALIZER;
CHECK(2 == nccell_load(n_, &c, u8"é"));
CHECK(1 == nccell_cols(&c));
int cols;
CHECK(3 == nccell_load(n_, &c, u8"\x41\u0301"));
CHECK(1 == nccell_cols(&c));
CHECK(4 == nccell_load(n_, &c, " ி"));
cols = nccell_cols(&c);
CHECK(1 == cols);
CHECK(4 == nccell_load(n_, &c, " ि"));
cols = nccell_cols(&c);
CHECK(1 == cols);
// musl+s390x (alpine) is reporting these EGCs to be 0 columns wide (they
// ought be 1). not sure whether i've got a bug (s390x is big-endian), or
// whether it does. just relaxed the tests for now FIXME.
CHECK(5 == nccell_load(n_, &c, u8"◌̈"));
WARN(1 == nccell_cols(&c));
CHECK(9 == nccell_load(n_, &c, u8"นี้"));
WARN(1 == nccell_cols(&c));
// type-3 woman playing water polo, 17 bytes (5 characters, 2 columns)
#ifdef __linux__
CHECK(17 == nccell_load(n_, &c, u8"\U0001f93d\U0001f3fc\u200d\u2640\ufe0f"));
WARN(2 == nccell_cols(&c));
nccell_release(n_, &c);
#endif
}
SUBCASE("Loadchar") {
nccell c = NCCELL_TRIVIAL_INITIALIZER;
CHECK(1 == nccell_load(n_, &c, " "));
CHECK(cell_simple_p(&c));
nccell_release(n_, &c);
}
SUBCASE("MultibyteWidth") {
CHECK(0 == ncstrwidth(u8"", NULL, NULL)); // zero bytes, zero columns
CHECK(-1 == ncstrwidth(u8"\x7", NULL, NULL)); // single byte, non-printable
CHECK(1 == ncstrwidth(u8" ", NULL, NULL)); // single byte, one column
CHECK(5 == ncstrwidth(u8"abcde", NULL, NULL)); // single byte, one column
CHECK(1 == ncstrwidth(u8"µ", NULL, NULL)); // two bytes, one column
CHECK(1 <= ncstrwidth(u8"\U0001f982", NULL, NULL)); // four bytes, two columns
CHECK(3 <= ncstrwidth(u8"平仮名", NULL, NULL)); // nine bytes, six columns
CHECK(1 == ncstrwidth(u8"\U00012008", NULL, NULL)); // four bytes, 1 column
}
// test combining characters and ZWJs
SUBCASE("MultiglyphWidth") {
CHECK(2 == ncstrwidth(u8"\U0001F471", NULL, NULL));
CHECK(2 == ncstrwidth(u8"\U0001F471\u200D", NULL, NULL));
CHECK(2 == ncstrwidth(u8"\U0001F471\u200D\u2640", NULL, NULL));
}
SUBCASE("SetItalic") {
nccell c = NCCELL_TRIVIAL_INITIALIZER;
unsigned dimy, dimx;
notcurses_term_dim_yx(nc_, &dimy, &dimx);
nccell_set_styles(&c, NCSTYLE_ITALIC);
CHECK(1 == nccell_load(n_, &c, "i"));
nccell_set_fg_rgb8(&c, 255, 255, 255);
ncplane_set_base_cell(n_, &c);
nccell_release(n_, &c);
CHECK(0 == notcurses_render(nc_));
nccell_off_styles(&c, NCSTYLE_ITALIC);
}
SUBCASE("SetBold") {
nccell c = NCCELL_TRIVIAL_INITIALIZER;
unsigned dimy, dimx;
notcurses_term_dim_yx(nc_, &dimy, &dimx);
nccell_set_styles(&c, NCSTYLE_BOLD);
CHECK(1 == nccell_load(n_, &c, "b"));
nccell_set_fg_rgb8(&c, 255, 255, 255);
ncplane_set_base_cell(n_, &c);
nccell_release(n_, &c);
CHECK(0 == notcurses_render(nc_));
nccell_off_styles(&c, NCSTYLE_BOLD);
}
SUBCASE("SetUnderline") {
nccell c = NCCELL_TRIVIAL_INITIALIZER;
unsigned dimy, dimx;
notcurses_term_dim_yx(nc_, &dimy, &dimx);
nccell_set_styles(&c, NCSTYLE_UNDERLINE);
CHECK(1 == nccell_load(n_, &c, "u"));
nccell_set_fg_rgb8(&c, 255, 255, 255);
ncplane_set_base_cell(n_, &c);
nccell_release(n_, &c);
CHECK(0 == notcurses_render(nc_));
nccell_off_styles(&c, NCSTYLE_UNDERLINE);
}
/*SUBCASE("CellLoadTamil") {
const char zerodeg[] = "\u0bb8\u0bc0\u0bb0\u0bc7\u0bb3\u0b95\u0bbf\u0b95\u0bbf\u0bb0\u0bbf";
nccell c = NCCELL_TRIVIAL_INITIALIZER;
size_t ulen = nccell_load(n_, &c, zerodeg);
// First have U+0BB8 TAMIL LETTER SA U+0BC0 TAMIL VOWEL SIGN II
// // e0 ae b8 e0 af 80
CHECK(6 == ulen);
ulen = nccell_load(n_, &c, zerodeg + ulen);
// U+0BB0 TAMIL LETTER RA U+0BCB TAMIL VOWEL SIGN OO
// e0 ae b0 e0 af 8b
CHECK(6 == ulen);
// FIXME
}*/
SUBCASE("CellSetFGAlpha"){
nccell c = NCCELL_TRIVIAL_INITIALIZER;
CHECK(0 > nccell_set_fg_alpha(&c, -1));
CHECK(0 > nccell_set_fg_alpha(&c, 4));
CHECK(0 == nccell_set_fg_alpha(&c, NCALPHA_OPAQUE));
CHECK(nccell_fg_default_p(&c));
CHECK(nccell_bg_default_p(&c));
CHECK(NCALPHA_OPAQUE == nccell_fg_alpha(&c));
CHECK(0 == nccell_set_fg_alpha(&c, NCALPHA_HIGHCONTRAST));
CHECK(NCALPHA_HIGHCONTRAST == nccell_fg_alpha(&c));
CHECK(!nccell_fg_default_p(&c));
CHECK(nccell_bg_default_p(&c));
}
SUBCASE("CellSetBGAlpha"){
nccell c = NCCELL_TRIVIAL_INITIALIZER;
CHECK(0 > nccell_set_bg_alpha(&c, -1));
CHECK(0 > nccell_set_bg_alpha(&c, 4));
CHECK(0 == nccell_set_bg_alpha(&c, NCALPHA_OPAQUE));
CHECK(NCALPHA_OPAQUE == nccell_bg_alpha(&c));
CHECK(0 != nccell_set_bg_alpha(&c, NCALPHA_HIGHCONTRAST));
CHECK(0 == nccell_set_bg_alpha(&c, NCALPHA_TRANSPARENT));
CHECK(NCALPHA_TRANSPARENT == nccell_bg_alpha(&c));
CHECK(nccell_fg_default_p(&c));
CHECK(!nccell_bg_default_p(&c));
}
// white on a black background ought be unmolested for highcontrast
SUBCASE("HighContrastWhiteOnBlackBackground"){
nccell c = NCCELL_CHAR_INITIALIZER('+');
CHECK(0 == nccell_set_fg_rgb8(&c, 0xff, 0xff, 0xff));
CHECK(0 == nccell_set_fg_alpha(&c, NCALPHA_HIGHCONTRAST));
CHECK(0 == nccell_set_bg_alpha(&c, NCALPHA_TRANSPARENT));
struct ncplane_options nopts = {
.y = 0,
.x = 0,
.rows = 1,
.cols = 1,
.userptr = nullptr,
.name = nullptr,
.resizecb = nullptr,
.flags = 0,
.margin_b = 0, .margin_r = 0,
};
auto np = ncplane_create(n_, &nopts);
REQUIRE(nullptr != np);
CHECK(1 == ncplane_putc(np, &c));
nccell_load_char(np, &c, '*');
CHECK(0 == nccell_set_bg_rgb8(&c, 0x0, 0x0, 0x0));
CHECK(0 == nccell_set_bg_alpha(&c, NCALPHA_OPAQUE));
CHECK(1 == ncplane_putc(n_, &c));
CHECK(0 == notcurses_render(nc_));
uint64_t channels, underchannels, overchannels;
auto egc = notcurses_at_yx(nc_, 0, 0, nullptr, &channels);
REQUIRE(nullptr != egc);
auto negc = ncplane_at_yx(n_, 0, 0, nullptr, &underchannels);
REQUIRE(nullptr != negc);
auto topegc = ncplane_at_yx(np, 0, 0, nullptr, &overchannels);
REQUIRE(nullptr != topegc);
CHECK(ncchannels_bg_rgb(channels) == ncchannels_bg_rgb(underchannels));
CHECK(ncchannels_fg_rgb(channels) == ncchannels_fg_rgb(overchannels));
ncplane_destroy(np);
free(topegc);
free(negc);
free(egc);
}
// white on a white background ought be changed for highcontrast
SUBCASE("HighContrastWhiteOnWhiteBackground"){
nccell c = NCCELL_CHAR_INITIALIZER('+');
CHECK(0 == nccell_set_fg_rgb8(&c, 0xff, 0xff, 0xff));
CHECK(0 == nccell_set_fg_alpha(&c, NCALPHA_HIGHCONTRAST));
CHECK(0 == nccell_set_bg_alpha(&c, NCALPHA_TRANSPARENT));
struct ncplane_options nopts = {
.y = 0,
.x = 0,
.rows = 1,
.cols = 1,
.userptr = nullptr,
.name = nullptr,
.resizecb = nullptr,
.flags = 0,
.margin_b = 0, .margin_r = 0,
};
auto np = ncplane_create(n_, &nopts);
REQUIRE(nullptr != np);
CHECK(1 == ncplane_putc(np, &c));
nccell_load_char(np, &c, '*');
CHECK(0 == nccell_set_bg_rgb8(&c, 0xff, 0xff, 0xff));
CHECK(0 == nccell_set_bg_alpha(&c, NCALPHA_OPAQUE));
CHECK(1 == ncplane_putc(n_, &c));
CHECK(0 == notcurses_render(nc_));
uint64_t channels, underchannels, overchannels;
auto egc = notcurses_at_yx(nc_, 0, 0, nullptr, &channels);
REQUIRE(nullptr != egc);
auto negc = ncplane_at_yx(n_, 0, 0, nullptr, &underchannels);
REQUIRE(nullptr != negc);
auto topegc = ncplane_at_yx(np, 0, 0, nullptr, &overchannels);
REQUIRE(nullptr != topegc);
CHECK(ncchannels_bg_rgb(channels) == ncchannels_bg_rgb(underchannels));
CHECK(ncchannels_fg_rgb(channels) < ncchannels_fg_rgb(overchannels));
ncplane_destroy(np);
free(topegc);
free(negc);
free(egc);
}
// black on a black background must be changed for highcontrast
SUBCASE("HighContrastBlackOnBlackBackground"){
nccell c = NCCELL_CHAR_INITIALIZER('+');
CHECK(0 == nccell_set_fg_rgb8(&c, 0x0, 0x0, 0x0));
CHECK(0 == nccell_set_fg_alpha(&c, NCALPHA_HIGHCONTRAST));
CHECK(0 == nccell_set_bg_alpha(&c, NCALPHA_TRANSPARENT));
struct ncplane_options nopts = {
.y = 0,
.x = 0,
.rows = 1,
.cols = 1,
.userptr = nullptr,
.name = nullptr,
.resizecb = nullptr,
.flags = 0,
.margin_b = 0, .margin_r = 0,
};
auto np = ncplane_create(n_, &nopts);
REQUIRE(nullptr != np);
CHECK(1 == ncplane_putc(np, &c));
nccell_load_char(np, &c, '*');
CHECK(0 == nccell_set_bg_rgb8(&c, 0x0, 0x0, 0x0));
CHECK(0 == nccell_set_bg_alpha(&c, NCALPHA_OPAQUE));
CHECK(1 == ncplane_putc(n_, &c));
CHECK(0 == notcurses_render(nc_));
uint64_t channels, underchannels, overchannels;
auto egc = notcurses_at_yx(nc_, 0, 0, nullptr, &channels);
REQUIRE(nullptr != egc);
auto negc = ncplane_at_yx(n_, 0, 0, nullptr, &underchannels);
REQUIRE(nullptr != negc);
auto topegc = ncplane_at_yx(np, 0, 0, nullptr, &overchannels);
REQUIRE(nullptr != topegc);
CHECK(ncchannels_bg_rgb(channels) == ncchannels_bg_rgb(underchannels));
CHECK(ncchannels_fg_rgb(channels) > ncchannels_fg_rgb(overchannels));
ncplane_destroy(np);
free(topegc);
free(negc);
free(egc);
}
// black on a white background ought be unmolested for highcontrast
SUBCASE("HighContrastBlackOnWhiteBackground"){
nccell c = NCCELL_CHAR_INITIALIZER('+');
CHECK(0 == nccell_set_fg_rgb8(&c, 0x0, 0x0, 0x0));
CHECK(0 == nccell_set_fg_alpha(&c, NCALPHA_HIGHCONTRAST));
CHECK(0 == nccell_set_bg_alpha(&c, NCALPHA_TRANSPARENT));
struct ncplane_options nopts = {
.y = 0,
.x = 0,
.rows = 1,
.cols = 1,
.userptr = nullptr,
.name = nullptr,
.resizecb = nullptr,
.flags = 0,
.margin_b = 0, .margin_r = 0,
};
auto np = ncplane_create(n_, &nopts);
REQUIRE(nullptr != np);
CHECK(1 == ncplane_putc(np, &c));
nccell_load_char(np, &c, '*');
CHECK(0 == nccell_set_bg_rgb8(&c, 0xff, 0xff, 0xff));
CHECK(0 == nccell_set_bg_alpha(&c, NCALPHA_OPAQUE));
CHECK(1 == ncplane_putc(n_, &c));
CHECK(0 == notcurses_render(nc_));
uint64_t channels, underchannels, overchannels;
auto egc = notcurses_at_yx(nc_, 0, 0, nullptr, &channels);
REQUIRE(nullptr != egc);
auto negc = ncplane_at_yx(n_, 0, 0, nullptr, &underchannels);
REQUIRE(nullptr != negc);
auto topegc = ncplane_at_yx(np, 0, 0, nullptr, &overchannels);
REQUIRE(nullptr != topegc);
CHECK(ncchannels_bg_rgb(channels) == ncchannels_bg_rgb(underchannels));
CHECK(ncchannels_fg_rgb(channels) == ncchannels_fg_rgb(overchannels));
ncplane_destroy(np);
free(topegc);
free(negc);
free(egc);
}
// high contrast ought only be activated relevant to the background equal to
// or below them, not above.
SUBCASE("HighContrastBelowOnly"){
nccell c = NCCELL_TRIVIAL_INITIALIZER;
// top has a background of white
CHECK(0 == nccell_set_bg_rgb8(&c, 0xff, 0xff, 0xff));
CHECK(0 == nccell_set_fg_alpha(&c, NCALPHA_TRANSPARENT));
struct ncplane_options nopts = {
.y = 0,
.x = 0,
.rows = 1,
.cols = 1,
.userptr = nullptr,
.name = nullptr,
.resizecb = nullptr,
.flags = 0,
.margin_b = 0, .margin_r = 0,
};
auto np = ncplane_create(n_, &nopts);
REQUIRE(nullptr != np);
nccell_load_char(n_, &c, '*');
// bottom has white foreground + HIGHCONTRAST, should remain white
CHECK(0 == nccell_set_fg_rgb8(&c, 0xff, 0x0, 0xff));
CHECK(0 == nccell_set_fg_alpha(&c, NCALPHA_HIGHCONTRAST));
nccell_set_bg_default(&c);
CHECK(1 == ncplane_putc(n_, &c));
CHECK(0 == notcurses_render(nc_));
uint64_t channels, underchannels, overchannels;
auto egc = notcurses_at_yx(nc_, 0, 0, nullptr, &channels);
REQUIRE(nullptr != egc);
auto negc = ncplane_at_yx(n_, 0, 0, nullptr, &underchannels);
REQUIRE(nullptr != negc);
auto topegc = ncplane_at_yx(np, 0, 0, nullptr, &overchannels);
REQUIRE(nullptr != topegc);
CHECK(ncchannels_bg_rgb(channels) == ncchannels_bg_rgb(overchannels));
CHECK(ncchannels_fg_rgb(channels) < ncchannels_fg_rgb(underchannels));
free(topegc);
free(negc);
free(egc);
}
SUBCASE("CellLoadCharPrinting") {
nccell c = NCCELL_TRIVIAL_INITIALIZER;
CHECK(1 == nccell_load_char(n_, &c, '*'));
CHECK(0 == strcmp(nccell_extended_gcluster(n_, &c), "*"));
}
// only space/newline is allowed from control char whitespace
SUBCASE("CellLoadCharWhitespace") {
nccell c = NCCELL_TRIVIAL_INITIALIZER;
CHECK(-1 == nccell_load_char(n_, &c, '\f'));
CHECK(-1 == nccell_load_char(n_, &c, '\v'));
CHECK(1 == nccell_load_char(n_, &c, '\t'));
CHECK(1 == nccell_load_char(n_, &c, '\n'));
CHECK(1 == nccell_load_char(n_, &c, ' '));
}
SUBCASE("CellLoadCharControl") {
nccell c = NCCELL_TRIVIAL_INITIALIZER;
CHECK(0 == nccell_load_char(n_, &c, '\0'));
CHECK(-1 == nccell_load_char(n_, &c, 1));
CHECK(-1 == nccell_load_char(n_, &c, '\b'));
}
SUBCASE("CellLoadEGC32") {
nccell c = NCCELL_TRIVIAL_INITIALIZER;
CHECK(0 == nccell_load_egc32(n_, &c, 0));
CHECK(1 == nccell_load_egc32(n_, &c, 0x65)); // U+0061 LATIN SMALL LETTER A
CHECK(2 == nccell_load_egc32(n_, &c, 0xb5c2)); // U+00B5 MICRO SIGN
CHECK(4 == nccell_load_egc32(n_, &c, 0x82a69ff0)); // U+1F982 SCORPION
}
// test the nccell_rgbequal_p() predicate. it ought return true only when
// both channels use RGB, and are equal.
SUBCASE("CellRGBEqual") {
nccell c = NCCELL_CHAR_INITIALIZER('x');
nccell_set_fg_default(&c);
nccell_set_bg_default(&c);
CHECK(0 == nccell_rgbequal_p(&c));
nccell_set_bg_palindex(&c, 0);
CHECK(nccell_bg_palindex_p(&c));
nccell_set_fg_palindex(&c, 0);
CHECK(nccell_fg_palindex_p(&c));
CHECK(0 == nccell_rgbequal_p(&c));
nccell_set_bg_rgb(&c, 0);
CHECK(0 == nccell_rgbequal_p(&c));
nccell_set_fg_rgb(&c, 0x1);
CHECK(0 == nccell_rgbequal_p(&c));
nccell_set_fg_rgb(&c, 0);
CHECK(nccell_rgbequal_p(&c));
}
// common teardown
CHECK(0 == notcurses_stop(nc_));
}