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Diffstat (limited to 'testfiles/src/visual-bounds-test.cpp')
| -rw-r--r-- | testfiles/src/visual-bounds-test.cpp | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/testfiles/src/visual-bounds-test.cpp b/testfiles/src/visual-bounds-test.cpp new file mode 100644 index 0000000..dbc1605 --- /dev/null +++ b/testfiles/src/visual-bounds-test.cpp @@ -0,0 +1,132 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/** + * @file Test the computation of visual bounding boxes. + */ +/* + * Authors: + * Rafał Siejakowski <rs@rs-math.net> + * + * Copyright (C) 2023 Authors + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ +#include <gtest/gtest.h> + +#include <2geom/rect.h> +#include <iostream> +#include <iomanip> +#include "inkscape.h" +#include "document.h" +#include "object/sp-item.h" +#include "object/sp-rect.h" + +class InkscapeInit // Initialize the Inkscape Application singleton. +{ +public: + InkscapeInit() + { + if (!Inkscape::Application::exists()) { + Inkscape::Application::create(false); + } + } +}; + +class VisualBoundsTest : public ::testing::Test +{ +protected: + + VisualBoundsTest() + : _init{} + , _document{SPDocument::createNewDoc(INKSCAPE_TESTS_DIR "/data/visual-bounds.svg", false)} + { + _document->ensureUpToDate(); + _findTestCount(); + } + +public: + SPItem *getItemById(char const *const id) + { + auto obj = _document->getObjectById(id); + if (!obj) { + return nullptr; + } + return cast<SPItem>(obj); + } + size_t testCount() const { return _test_count; } +private: + void _findTestCount() + { + auto tspan = _document->getObjectById("num_tests"); + if (!tspan) { + std::cerr << "Could not get the element with id=\"num_tests\".\n"; + return; + } + auto content = tspan->firstChild(); + if (!content) { + std::cerr << "Could not get the content of the element with id=\"num_tests\".\n"; + return; + } + auto repr = content->getRepr(); + if (!repr) { + std::cerr << "Could not get the repr of the content of the element with id=\"num_tests\".\n"; + return; + } + auto text = repr->content(); + if (!text) { + std::cerr << "Could not get the text content of the element with id=\"num_tests\".\n"; + return; + } + try { + _test_count = std::stoul(text); + } catch (std::invalid_argument const &e) { + std::cerr << "Could not parse an integer from the content of element with id=\"num_tests\".\n"; + return; + } + } + + InkscapeInit _init; + std::unique_ptr<SPDocument> _document; + size_t _test_count = 0; +}; + +TEST_F(VisualBoundsTest, ShapeBounds) +{ + size_t const id_maxlen = 7 + 1; + char object_id[id_maxlen], bbox_id[id_maxlen]; + double const epsilon = 1e-4; + + for (size_t i = 1; i<= testCount(); i++) { + snprintf(object_id, id_maxlen, "obj-%lu", i); + snprintf(bbox_id, id_maxlen, "vbb-%lu", i); + + auto const *item = getItemById(object_id); + auto const *bbox = getItemById(bbox_id); + ASSERT_TRUE(item && bbox); + + Geom::Rect const expected_bbox = cast<SPRect>(bbox)->getRect(); + + auto const actual_opt_bbox = item->visualBounds(item->transform); + ASSERT_TRUE(bool(actual_opt_bbox)); + Geom::Rect const actual_bbox = *actual_opt_bbox; + + // Check that the item's visual bounding box is as expected, up to epsilon. + for (auto const dim : {Geom::X, Geom::Y}) { + EXPECT_GE(actual_bbox[dim].min(), expected_bbox[dim].min() - epsilon); + EXPECT_LE(actual_bbox[dim].min(), expected_bbox[dim].min() + epsilon); + + EXPECT_GE(actual_bbox[dim].max(), expected_bbox[dim].max() - epsilon); + EXPECT_LE(actual_bbox[dim].max(), expected_bbox[dim].max() + epsilon); + } + } +} + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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