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YGLoggerTest.cpp
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YGLoggerTest.cpp
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/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the LICENSE
* file in the root directory of this source tree.
*/
#include <gtest/gtest.h>
#include <stdarg.h>
#include <yoga/Yoga.h>
namespace {
char writeBuffer[4096];
int _unmanagedLogger(const YGConfigRef config,
const YGNodeRef node,
YGLogLevel level,
const char *format,
va_list args) {
return vsnprintf(writeBuffer + strlen(writeBuffer),
sizeof(writeBuffer) - strlen(writeBuffer),
format,
args);
}
}
TEST(YogaTest, config_print_tree_enabled) {
writeBuffer[0] = '\0';
const YGConfigRef config = YGConfigNew();
YGConfigSetPrintTreeFlag(config, true);
YGConfigSetLogger(config, _unmanagedLogger);
const YGNodeRef root = YGNodeNewWithConfig(config);
const YGNodeRef child0 = YGNodeNewWithConfig(config);
const YGNodeRef child1 = YGNodeNewWithConfig(config);
YGNodeInsertChild(root, child0, 0);
YGNodeInsertChild(root, child1, 1);
YGNodeCalculateLayout(root, YGUnitUndefined, YGUnitUndefined, YGDirectionLTR);
YGConfigSetLogger(config, NULL);
YGNodeFreeRecursive(root);
const char* expected =
"<div layout=\"width: 0; height: 0; top: 0; left: 0;\" style=\"\" >\n "
"<div layout=\"width: 0; height: 0; top: 0; left: 0;\" style=\"\" "
"></div>\n <div layout=\"width: 0; height: 0; top: 0; left: 0;\" "
"style=\"\" ></div>\n</div>";
ASSERT_STREQ(expected, writeBuffer);
}
TEST(YogaTest, config_print_tree_disabled) {
writeBuffer[0] = '\0';
const YGConfigRef config = YGConfigNew();
YGConfigSetPrintTreeFlag(config, false);
YGConfigSetLogger(config, _unmanagedLogger);
const YGNodeRef root = YGNodeNewWithConfig(config);
const YGNodeRef child0 = YGNodeNewWithConfig(config);
const YGNodeRef child1 = YGNodeNewWithConfig(config);
YGNodeInsertChild(root, child0, 0);
YGNodeInsertChild(root, child1, 1);
YGNodeCalculateLayout(root, YGUnitUndefined, YGUnitUndefined, YGDirectionLTR);
YGConfigSetLogger(config, NULL);
YGNodeFreeRecursive(root);
const char* expected = "";
ASSERT_STREQ(expected, writeBuffer);
}
TEST(YogaTest, logger_default_node_should_print_no_style_info) {
writeBuffer[0] = '\0';
const YGConfigRef config = YGConfigNew();
YGConfigSetLogger(config, _unmanagedLogger);
const YGNodeRef root = YGNodeNewWithConfig(config);
YGNodeCalculateLayout(root, YGUnitUndefined, YGUnitUndefined, YGDirectionLTR);
YGNodePrint(root,
(YGPrintOptions)(YGPrintOptionsLayout | YGPrintOptionsChildren |
YGPrintOptionsStyle));
YGConfigSetLogger(config, NULL);
YGNodeFree(root);
const char *expected = "<div layout=\"width: 0; height: 0; top: 0; left: 0;\" style=\"\" ></div>";
ASSERT_STREQ(expected, writeBuffer);
}
TEST(YogaTest, logger_node_with_percentage_absolute_position_and_margin) {
writeBuffer[0] = '\0';
const YGConfigRef config = YGConfigNew();
YGConfigSetLogger(config, _unmanagedLogger);
const YGNodeRef root = YGNodeNewWithConfig(config);
YGNodeStyleSetPositionType(root, YGPositionTypeAbsolute);
YGNodeStyleSetWidthPercent(root, 50);
YGNodeStyleSetHeightPercent(root, 75);
YGNodeStyleSetFlex(root, 1);
YGNodeStyleSetMargin(root, YGEdgeRight, 10);
YGNodeStyleSetMarginAuto(root, YGEdgeLeft);
YGNodeCalculateLayout(root, YGUnitUndefined, YGUnitUndefined, YGDirectionLTR);
YGNodePrint(root,
(YGPrintOptions)(YGPrintOptionsLayout | YGPrintOptionsChildren |
YGPrintOptionsStyle));
YGConfigSetLogger(config, NULL);
YGNodeFree(root);
const char *expected = "<div layout=\"width: 0; height: 0; top: 0; left: 0;\" style=\"flex: 1; "
"margin-left: auto; margin-right: 10px; width: 50%; height: 75%; "
"position: absolute; \" ></div>";
ASSERT_STREQ(expected, writeBuffer);
}
TEST(YogaTest, logger_node_with_children_should_print_indented) {
writeBuffer[0] = '\0';
const YGConfigRef config = YGConfigNew();
YGConfigSetLogger(config, _unmanagedLogger);
const YGNodeRef root = YGNodeNewWithConfig(config);
const YGNodeRef child0 = YGNodeNewWithConfig(config);
const YGNodeRef child1 = YGNodeNewWithConfig(config);
YGNodeInsertChild(root, child0, 0);
YGNodeInsertChild(root, child1, 1);
YGNodeCalculateLayout(root, YGUnitUndefined, YGUnitUndefined, YGDirectionLTR);
YGNodePrint(root,
(YGPrintOptions)(YGPrintOptionsLayout | YGPrintOptionsChildren |
YGPrintOptionsStyle));
YGConfigSetLogger(config, NULL);
YGNodeFreeRecursive(root);
const char *expected = "<div layout=\"width: 0; height: 0; top: 0; left: 0;\" style=\"\" >\n "
"<div layout=\"width: 0; height: 0; top: 0; left: 0;\" style=\"\" "
"></div>\n <div layout=\"width: 0; height: 0; top: 0; left: 0;\" "
"style=\"\" ></div>\n</div>";
ASSERT_STREQ(expected, writeBuffer);
}