L1: shared LICE drawing kit — theme/palette + component geometry + draw kit; retire GDI text in bank_panel
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// Standalone tests for reasampler::component_geometry — no REAPER, no LICE, no framework.
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// Same fast assert loop as the sibling pure tests (prune_button / mode_switch).
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//
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// Covers (brief §L1 point 2 + §test cases): button box inset + graceful suppression; slider
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// track/filled/handle geometry for representative values incl. endpoints, value->px inverse,
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// too-small/degenerate suppression; list-row rect for representative indices, partial last
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// row, hover hit-test returns the right row and "no hit" outside/past the last row; and the
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// shared half-open box hit-test agrees with layout (no double-claimed pixel).
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#include "../src/component_geometry.h"
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#include <cstdio>
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using namespace reasampler;
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static int g_fail = 0;
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#define CHECK(cond) do { if(!(cond)) { \
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std::printf("FAIL line %d: %s\n", __LINE__, #cond); ++g_fail; } } while(0)
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// --- hitTestBox (the shared primitive) ---------------------------------------
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static void testHitTestBoxHalfOpen() {
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KitBox b{10, 20, 30, 40};
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CHECK(hitTestBox(10, 20, b)); // top-left inclusive
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CHECK(hitTestBox(39, 59, b)); // bottom-right inclusive (x+w-1, y+h-1)
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CHECK(!hitTestBox(40, 20, b)); // right edge excluded
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CHECK(!hitTestBox(10, 60, b)); // bottom edge excluded
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CHECK(!hitTestBox(9, 20, b)); // just left
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CHECK(!hitTestBox(10, 19, b)); // just above
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KitBox empty{};
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CHECK(!hitTestBox(0, 0, empty)); // empty claims nothing
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}
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// --- Button box --------------------------------------------------------------
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static void testButtonBoxInset() {
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KitBox cell{0, 0, 100, 40};
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const KitButtonBox b = computeButtonBox(cell, 4);
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CHECK(!b.box.empty());
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CHECK((b.box == KitBox{4, 4, 92, 32}));
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}
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static void testButtonBoxZeroPadding() {
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KitBox cell{5, 6, 20, 10};
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const KitButtonBox b = computeButtonBox(cell, 0);
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CHECK((b.box == cell)); // no inset -> the whole cell
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}
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static void testButtonBoxNegativePaddingTreatedAsZero() {
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KitBox cell{5, 6, 20, 10};
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CHECK((computeButtonBox(cell, -8).box == cell));
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}
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static void testButtonBoxSuppressedWhenPaddingCollapses() {
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KitBox cell{0, 0, 10, 10};
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CHECK(computeButtonBox(cell, 5).box.empty()); // 10 - 2*5 = 0 width -> suppressed
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CHECK(computeButtonBox(cell, 6).box.empty()); // negative -> suppressed
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CHECK(computeButtonBox(KitBox{}, 2).box.empty()); // degenerate cell -> suppressed
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}
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// --- Slider ------------------------------------------------------------------
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// control 200x20, handle 12, track thickness 4. half = 6. track.x = 6, track.width =
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// 200-12 = 188, track.y = (20-4)/2 = 8. At value 0 the handle centre is track.x=6 ->
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// handle.x = 0; filled.width = 0. At value 1 the centre is 6+188=194 -> handle.x=188.
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static void testSliderEndpoints() {
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KitBox ctrl{0, 0, 200, 20};
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const SliderGeometry lo = computeSlider(ctrl, 0.0, 12, 4);
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CHECK(!lo.track.empty());
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CHECK((lo.track == KitBox{6, 8, 188, 4}));
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CHECK(lo.handle.x == 0); // flush left
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CHECK(lo.filled.width == 0); // nothing filled at 0
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const SliderGeometry hi = computeSlider(ctrl, 1.0, 12, 4);
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CHECK(hi.handle.x == 188); // flush right (200-12)
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CHECK(hi.filled.width == 188); // fully filled at 1
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}
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static void testSliderMidpoint() {
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KitBox ctrl{0, 0, 200, 20};
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const SliderGeometry m = computeSlider(ctrl, 0.5, 12, 4);
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// centre = 6 + round(0.5*188) = 6 + 94 = 100; handle.x = 100 - 6 = 94.
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CHECK(m.handle.x == 94);
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CHECK(m.filled.width == 94);
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}
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static void testSliderClampsValue() {
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KitBox ctrl{0, 0, 200, 20};
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CHECK((computeSlider(ctrl, -1.0, 12, 4).handle.x == computeSlider(ctrl, 0.0, 12, 4).handle.x));
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CHECK((computeSlider(ctrl, 5.0, 12, 4).handle.x == computeSlider(ctrl, 1.0, 12, 4).handle.x));
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}
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static void testSliderSuppressedWhenTooSmallOrDegenerate() {
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CHECK(computeSlider(KitBox{0, 0, 8, 20}, 0.5, 12, 4).track.empty()); // width < handle
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CHECK(computeSlider(KitBox{0, 0, 200, 8}, 0.5, 12, 4).track.empty()); // height < handle
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CHECK(computeSlider(KitBox{}, 0.5, 12, 4).track.empty()); // degenerate
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CHECK(computeSlider(KitBox{0, 0, 200, 20}, 0.5, 0, 4).track.empty()); // no handle
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CHECK(computeSlider(KitBox{0, 0, 200, 20}, 0.5, 12, 0).track.empty()); // no track
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}
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// value->px is the inverse of the handle placement (a track jump).
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static void testSliderValueAtInverse() {
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KitBox ctrl{0, 0, 200, 20};
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CHECK(sliderValueAt(6, ctrl, 12) == 0.0); // at/left of track start
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CHECK(sliderValueAt(0, ctrl, 12) == 0.0); // left of the control -> 0
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CHECK(sliderValueAt(194, ctrl, 12) == 1.0); // at track end -> 1
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CHECK(sliderValueAt(300, ctrl, 12) == 1.0); // past the end -> clamped
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const double mid = sliderValueAt(100, ctrl, 12); // (100-6)/188
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CHECK(mid > 0.49 && mid < 0.51);
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CHECK(sliderValueAt(50, KitBox{0, 0, 8, 20}, 12) == 0.0); // too small -> 0
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}
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// --- List row ----------------------------------------------------------------
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static void testListRowStacking() {
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KitBox list{0, 100, 220, 90}; // 3 full rows of 30 fit
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CHECK((computeListRow(list, 0, 30).box == KitBox{0, 100, 220, 30}));
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CHECK((computeListRow(list, 1, 30).box == KitBox{0, 130, 220, 30}));
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CHECK((computeListRow(list, 2, 30).box == KitBox{0, 160, 220, 30}));
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CHECK(computeListRow(list, 0, 30).index == 0);
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CHECK(computeListRow(list, 2, 30).index == 2);
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}
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// A row that starts inside the list but overhangs the bottom keeps full height (caller
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// clips the draw); a row starting AT/BELOW the bottom is suppressed.
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static void testListRowPartialAndClipped() {
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KitBox list{0, 0, 100, 50}; // rows of 30: row 0 [0,30), row 1 [30,60) overhangs
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const ListRowBox partial = computeListRow(list, 1, 30);
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CHECK(!partial.box.empty());
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CHECK(partial.box.y == 30);
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CHECK(partial.box.height == 30); // full height; caller clips
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CHECK(computeListRow(list, 2, 30).box.empty()); // starts at y=60 >= bottom -> none
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}
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static void testListRowDegenerate() {
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CHECK(computeListRow(KitBox{}, 0, 30).box.empty());
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CHECK(computeListRow(KitBox{0, 0, 100, 90}, -1, 30).box.empty());
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CHECK(computeListRow(KitBox{0, 0, 100, 90}, 0, 0).box.empty());
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}
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static void testListRowHitTest() {
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KitBox list{0, 100, 220, 90}; // 3 rows of 30, rowCount = 3
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CHECK(hitTestListRow(10, 100, list, 30, 3) == 0); // top of row 0
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CHECK(hitTestListRow(10, 129, list, 30, 3) == 0); // bottom of row 0 (inclusive)
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CHECK(hitTestListRow(10, 130, list, 30, 3) == 1); // top of row 1
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CHECK(hitTestListRow(10, 189, list, 30, 3) == 2); // last pixel of row 2
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// Misses.
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CHECK(hitTestListRow(10, 99, list, 30, 3) == -1); // above the list
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CHECK(hitTestListRow(10, 190, list, 30, 3) == -1); // below the list band
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CHECK(hitTestListRow(-1, 100, list, 30, 3) == -1); // left of the list
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CHECK(hitTestListRow(220, 100, list, 30, 3) == -1); // right edge excluded
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}
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// rowCount bounds the hit: a taller list with fewer rows than fit reports the empty tail
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// as a miss (no phantom row past the data).
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static void testListRowHitTestBoundedByCount() {
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KitBox list{0, 0, 100, 200}; // room for 6 rows of 30, but only 2 exist
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CHECK(hitTestListRow(10, 10, list, 30, 2) == 0);
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CHECK(hitTestListRow(10, 40, list, 30, 2) == 1);
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CHECK(hitTestListRow(10, 70, list, 30, 2) == -1); // row 2 is empty tail -> miss
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CHECK(hitTestListRow(10, 10, list, 30, 0) == -1); // zero rows -> always miss
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}
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// Draw/hit-test agreement: every pixel inside a computed row hit-tests to that row.
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static void testListRowLayoutHitAgreement() {
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KitBox list{3, 7, 97, 120};
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const int rh = 24, rowCount = 4;
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for (int idx = 0; idx < rowCount; ++idx) {
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const ListRowBox r = computeListRow(list, idx, rh);
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if (r.box.empty()) continue;
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for (int py = r.box.y; py < r.box.y + r.box.height &&
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py < list.y + list.height; ++py)
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CHECK(hitTestListRow(list.x + 1, py, list, rh, rowCount) == idx);
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}
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}
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int main() {
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testHitTestBoxHalfOpen();
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testButtonBoxInset();
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testButtonBoxZeroPadding();
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testButtonBoxNegativePaddingTreatedAsZero();
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testButtonBoxSuppressedWhenPaddingCollapses();
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testSliderEndpoints();
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testSliderMidpoint();
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testSliderClampsValue();
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testSliderSuppressedWhenTooSmallOrDegenerate();
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testSliderValueAtInverse();
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testListRowStacking();
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testListRowPartialAndClipped();
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testListRowDegenerate();
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testListRowHitTest();
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testListRowHitTestBoundedByCount();
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testListRowLayoutHitAgreement();
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if (g_fail == 0) std::printf("component_geometry: all tests passed\n");
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else std::printf("component_geometry: %d CHECK(s) FAILED\n", g_fail);
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return g_fail == 0 ? 0 : 1;
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}
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