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Codechange: Add unit-test to check if nested widget parts of properly closed.

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Properly closed means exactly one EndContainer for every Container widget.
This commit is contained in:
Peter Nelson
2023-11-02 23:25:28 +00:00
committed by Peter Nelson
parent e8db137135
commit ce6e739491
2 changed files with 27 additions and 0 deletions
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26
src/tests/test_window_desc.cpp
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@@ -47,3 +47,29 @@ TEST_CASE("WindowDesc - ini_key validity")
CHECK((has_widget == has_inikey));
}
/**
* Test if a NWidgetTree is properly closed, meaning the number of container-type parts matches the number of
* EndContainer() parts.
* @param nwid_begin Pointer to beginning of nested widget parts.
* @param nwid_end Pointer to ending of nested widget parts.
* @return True iff nested tree is properly closed.
*/
static bool IsNWidgetTreeClosed(const NWidgetPart *nwid_begin, const NWidgetPart *nwid_end)
{
int depth = 0;
for (; nwid_begin < nwid_end; ++nwid_begin) {
if (IsContainerWidgetType(nwid_begin->type)) ++depth;
if (nwid_begin->type == WPT_ENDCONTAINER) --depth;
}
return depth == 0;
}
TEST_CASE("WindowDesc - NWidgetParts properly closed")
{
const WindowDesc *window_desc = GENERATE(from_range(std::begin(*_window_descs), std::end(*_window_descs)));
INFO(fmt::format("{}:{}", window_desc->file, window_desc->line));
CHECK(IsNWidgetTreeClosed(window_desc->nwid_begin, window_desc->nwid_end));
}