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FTXUI/src/ftxui/dom/vbox_test.cpp
ArthurSonzogni 08ee49f3e6 Add flex_grow and flex_shrink. 
Two new elements:
- flex_grow  : Expand the element to occupy free space.
- flex_shrink: Minimize the element leave away missing space.

flex = flex_grow | flex_shrink.

Other changes:
- hbox and vbox are now non flexible by default.
- the vtext element has been added to help writting tests.
- Many new tests.
2020-06-07 02:30:45 +02:00

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8.5 KiB
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// Copyright 2020 Arthur Sonzogni. All rights reserved.
// Use of this source code is governed by the MIT license that can be found in
// the LICENSE file.
#include "ftxui/dom/elements.hpp"
#include "ftxui/screen/screen.hpp"
#include "gtest/gtest.h"
using namespace ftxui;
using namespace ftxui;
std::string rotate(std::string str) {
str.erase(std::remove(str.begin(), str.end(), '\n'), str.end());
return str;
}
TEST(VBoxText, NoFlex_NoFlex_NoFlex) {
auto root = vbox({
vtext(L"012"),
vtext(L"abc"),
vtext(L"ABC"),
});
std::vector<std::string> expectations = {
"", //
"0", //
"0a", //
"0aA", //
"01aA", //
"01abA", //
"01abAB", //
"012abAB", //
"012abcAB", //
"012abcABC", //
"012abcABC ", //
"012abcABC ", //
};
for (int i = 0; i < expectations.size(); ++i) {
Screen screen(1, i);
Render(screen, root);
EXPECT_EQ(expectations[i], rotate(screen.ToString()));
}
}
TEST(VBoxText, FlexGrow_NoFlex_NoFlex) {
auto root = vbox({
vtext(L"012") | flex_grow,
vtext(L"abc"),
vtext(L"ABC"),
});
std::vector<std::string> expectations = {
"", //
"0", //
"0a", //
"0aA", //
"01aA", //
"01abA", //
"01abAB", //
"012abAB", //
"012abcAB", //
"012abcABC", //
"012 abcABC", //
"012 abcABC", //
};
for (int i = 0; i < expectations.size(); ++i) {
Screen screen(1, i);
Render(screen, root);
EXPECT_EQ(expectations[i], rotate(screen.ToString()));
}
}
TEST(VBoxText, NoFlex_FlexGrow_NoFlex) {
auto root = vbox({
vtext(L"012"),
vtext(L"abc") | flex_grow,
vtext(L"ABC"),
});
std::vector<std::string> expectations = {
"", //
"0", //
"0a", //
"0aA", //
"01aA", //
"01abA", //
"01abAB", //
"012abAB", //
"012abcAB", //
"012abcABC", //
"012abc ABC", //
"012abc ABC", //
};
for (int i = 0; i < expectations.size(); ++i) {
Screen screen(1, i);
Render(screen, root);
EXPECT_EQ(expectations[i], rotate(screen.ToString()));
}
}
TEST(VBoxText, NoFlex_NoFlex_FlexGrow) {
auto root = vbox({
vtext(L"012"),
vtext(L"abc"),
vtext(L"ABC") | flex_grow,
});
std::vector<std::string> expectations = {
"", //
"0", //
"0a", //
"0aA", //
"01aA", //
"01abA", //
"01abAB", //
"012abAB", //
"012abcAB", //
"012abcABC", //
"012abcABC ", //
"012abcABC ", //
};
for (int i = 0; i < expectations.size(); ++i) {
Screen screen(1, i);
Render(screen, root);
EXPECT_EQ(expectations[i], rotate(screen.ToString()));
}
}
TEST(VBoxText, FlexGrow_NoFlex_FlexGrow) {
auto root = vbox({
vtext(L"012") | flex_grow,
vtext(L"abc"),
vtext(L"ABC") | flex_grow,
});
std::vector<std::string> expectations = {
"", //
"0", //
"0a", //
"0aA", //
"01aA", //
"01abA", //
"01abAB", //
"012abAB", //
"012abcAB", //
"012abcABC", //
"012abcABC ", //
"012 abcABC ", //
"012 abcABC ", //
"012 abcABC ", //
};
for (int i = 0; i < expectations.size(); ++i) {
Screen screen(1, i);
Render(screen, root);
EXPECT_EQ(expectations[i], rotate(screen.ToString()));
}
}
TEST(VBoxText, FlexGrow_FlexGrow_FlexGrow) {
auto root = vbox({
vtext(L"012") | flex_grow,
vtext(L"abc") | flex_grow,
vtext(L"ABC") | flex_grow,
});
std::vector<std::string> expectations = {
"", //
"0", //
"0a", //
"0aA", //
"01aA", //
"01abA", //
"01abAB", //
"012abAB", //
"012abcAB", //
"012abcABC", //
"012abcABC ", //
"012abc ABC ", //
"012 abc ABC ", //
"012 abc ABC ", //
"012 abc ABC ", //
"012 abc ABC ", //
};
for (int i = 0; i < expectations.size(); ++i) {
Screen screen(1, i);
Render(screen, root);
EXPECT_EQ(expectations[i], rotate(screen.ToString()));
}
}
// ------
TEST(VBoxText, FlexShrink_NoFlex_NoFlex) {
auto root = vbox({
vtext(L"012") | flex_shrink,
vtext(L"abc"),
vtext(L"ABC"),
});
std::vector<std::string> expectations = {
"", //
"a", //
"aA", //
"abA", //
"abAB", //
"abcAB", //
"abcABC", //
"0abcABC", //
"01abcABC", //
"012abcABC", //
"012abcABC ", //
"012abcABC ", //
};
for (int i = 0; i < expectations.size(); ++i) {
Screen screen(1, i);
Render(screen, root);
EXPECT_EQ(expectations[i], rotate(screen.ToString()));
}
}
TEST(VBoxText, NoFlex_FlexShrink_NoFlex) {
auto root = vbox({
vtext(L"012"),
vtext(L"abc") | flex_shrink,
vtext(L"ABC"),
});
std::vector<std::string> expectations = {
"", //
"0", //
"0A", //
"01A", //
"01AB", //
"012AB", //
"012ABC", //
"012aABC", //
"012abABC", //
"012abcABC", //
"012abcABC ", //
"012abcABC ", //
};
for (int i = 0; i < expectations.size(); ++i) {
Screen screen(1, i);
Render(screen, root);
EXPECT_EQ(expectations[i], rotate(screen.ToString()));
}
}
TEST(VBoxText, NoFlex_NoFlex_FlexShrink) {
auto root = vbox({
vtext(L"012"),
vtext(L"abc"),
vtext(L"ABC") | flex_shrink,
});
std::vector<std::string> expectations = {
"", //
"0", //
"0a", //
"01a", //
"01ab", //
"012ab", //
"012abc", //
"012abcA", //
"012abcAB", //
"012abcABC", //
"012abcABC ", //
"012abcABC ", //
};
for (int i = 0; i < expectations.size(); ++i) {
Screen screen(1, i);
Render(screen, root);
EXPECT_EQ(expectations[i], rotate(screen.ToString()));
}
}
TEST(VBoxText, FlexShrink_NoFlex_FlexShrink) {
auto root = vbox({
vtext(L"012") | flex_shrink,
vtext(L"abc"),
vtext(L"ABC") | flex_shrink,
});
std::vector<std::string> expectations = {
"", //
"a", //
"ab", //
"abc", //
"0abc", //
"0abcA", //
"01abcA", //
"01abcAB", //
"012abcAB", //
"012abcABC", //
"012abcABC ", //
};
for (int i = 0; i < expectations.size(); ++i) {
Screen screen(1, i);
Render(screen, root);
EXPECT_EQ(expectations[i], rotate(screen.ToString()));
}
}
TEST(VBoxText, FlexShrink_FlexShrink_FlexShrink) {
auto root = vbox({
vtext(L"012") | flex_shrink,
vtext(L"abc") | flex_shrink,
vtext(L"ABC") | flex_shrink,
});
std::vector<std::string> expectations = {
"", //
"0", //
"0a", //
"0aA", //
"01aA", //
"01abA", //
"01abAB", //
"012abAB", //
"012abcAB", //
"012abcABC", //
"012abcABC ", //
"012abcABC ", //
"012abcABC ", //
};
for (int i = 0; i < expectations.size(); ++i) {
Screen screen(1, i);
Render(screen, root);
EXPECT_EQ(expectations[i], rotate(screen.ToString()));
}
}
TEST(VBoxText, FlexGrow_NoFlex_FlewShrink) {
auto root = vbox({
vtext(L"012") | flex_grow,
vtext(L"abc"),
vtext(L"ABC") | flex_shrink,
});
std::vector<std::string> expectations = {
"", //
"0", //
"0a", //
"01a", //
"01ab", //
"012ab", //
"012abc", //
"012abcA", //
"012abcAB", //
"012abcABC", //
"012 abcABC", //
"012 abcABC", //
"012 abcABC", //
};
for (int i = 0; i < expectations.size(); ++i) {
Screen screen(1, i);
Render(screen, root);
EXPECT_EQ(expectations[i], rotate(screen.ToString()));
}
}
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