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merged 2 commits into from
Jul 30, 2025
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katex test [nfc]: Name the KaTeX tests without redundancy after split #1767

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8ca68d4
katex test [nfc]: Name the KatexExample statics without redundancy
gnprice Jul 29, 2025
79edb40
katex test [nfc]: Cut redundant group on KaTeX widget tests
gnprice Jul 29, 2025
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66 changes: 33 additions & 33 deletions test/model/katex_test.dart
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -26,8 +26,8 @@ class KatexExample extends ContentExample {
// The font sizes can be compared using the katex.css generated
// from katex.scss :
// https://unpkg.com/[email protected]/dist/katex.css
static final mathBlockKatexSizing = KatexExample.block(
'math block; KaTeX different sizing',
static final sizing = KatexExample.block(
'different font sizes',
// https://chat.zulip.org/#narrow/channel/7-test-here/topic/Rajesh/near/2155476
'\\Huge 1\n\\huge 2\n\\LARGE 3\n\\Large 4\n\\large 5\n\\normalsize 6\n\\small 7\n\\footnotesize 8\n\\scriptsize 9\n\\tiny 0',
'<p>'
Expand Down Expand Up @@ -82,8 +82,8 @@ class KatexExample extends ContentExample {
]),
]);

static final mathBlockKatexNestedSizing = KatexExample.block(
'math block; KaTeX nested sizing',
static final nestedSizing = KatexExample.block(
'sizing spans nested',
r'\tiny {1 \Huge 2}',
'<p>'
'<span class="katex-display"><span class="katex">'
Expand All @@ -108,8 +108,8 @@ class KatexExample extends ContentExample {
]),
]);

static final mathBlockKatexDelimSizing = KatexExample.block(
'math block; KaTeX delimiter sizing',
static final delimsizing = KatexExample.block(
'delimsizing spans, big delimiters',
// https://chat.zulip.org/#narrow/channel/7-test-here/topic/Rajesh/near/2147135
r'⟨ \big( \Big[ \bigg⌈ \Bigg⌊',
'<p>'
Expand Down Expand Up @@ -150,8 +150,8 @@ class KatexExample extends ContentExample {
]),
]);

static final mathBlockKatexSpace = KatexExample.block(
'math block; KaTeX space',
static final spacing = KatexExample.block(
'positive horizontal spacing with margin-right',
// https://chat.zulip.org/#narrow/channel/7-test-here/topic/Rajesh/near/2214883
'1:2',
'<p>'
Expand Down Expand Up @@ -184,8 +184,8 @@ class KatexExample extends ContentExample {
]),
]);

static final mathBlockKatexSuperscript = KatexExample.block(
'math block, KaTeX superscript; single vlist-r, single vertical offset row',
static final vlistSuperscript = KatexExample.block(
'superscript: single vlist-r, single vertical offset row',
// https://chat.zulip.org/#narrow/channel/7-test-here/topic/Rajesh/near/2176734
"a'",
'<p>'
Expand Down Expand Up @@ -234,8 +234,8 @@ class KatexExample extends ContentExample {
]),
]);

static final mathBlockKatexSubscript = KatexExample.block(
'math block, KaTeX subscript; two vlist-r, single vertical offset row',
static final vlistSubscript = KatexExample.block(
'subscript: two vlist-r, single vertical offset row',
// https://chat.zulip.org/#narrow/channel/7-test-here/topic/Rajesh/near/2176735
'x_n',
'<p>'
Expand Down Expand Up @@ -288,8 +288,8 @@ class KatexExample extends ContentExample {
]),
]);

static final mathBlockKatexSubSuperScript = KatexExample.block(
'math block, KaTeX subsup script; two vlist-r, multiple vertical offset rows',
static final vlistSubAndSuperscript = KatexExample.block(
'subscript and superscript: two vlist-r, multiple vertical offset rows',
// https://chat.zulip.org/#narrow/channel/7-test-here/topic/Rajesh/near/2176738
'_u^o',
'<p>'
Expand Down Expand Up @@ -356,8 +356,8 @@ class KatexExample extends ContentExample {
]),
]);

static final mathBlockKatexRaisebox = KatexExample.block(
'math block, KaTeX raisebox; single vlist-r, single vertical offset row',
static final vlistRaisebox = KatexExample.block(
r'\raisebox: single vlist-r, single vertical offset row',
// https://chat.zulip.org/#narrow/channel/7-test-here/topic/Rajesh/near/2176739
r'a\raisebox{0.25em}{$b$}c',
'<p>'
Expand Down Expand Up @@ -398,8 +398,8 @@ class KatexExample extends ContentExample {
]),
]);

static final mathBlockKatexNegativeMargin = KatexExample.block(
'math block, KaTeX negative margin',
static final negativeMargin = KatexExample.block(
r'negative horizontal margin (\!)',
// https://chat.zulip.org/#narrow/channel/7-test-here/topic/Rajesh/near/2223563
r'1 \! 2',
'<p>'
Expand All @@ -421,8 +421,8 @@ class KatexExample extends ContentExample {
]),
]);

static final mathBlockKatexLogo = KatexExample.block(
'math block, KaTeX logo',
static final katexLogo = KatexExample.block(
'KaTeX logo: vlists, negative margins',
// https://chat.zulip.org/#narrow/channel/7-test-here/topic/Rajesh/near/2141902
r'\KaTeX',
'<p>'
Expand Down Expand Up @@ -509,8 +509,8 @@ class KatexExample extends ContentExample {
]),
]);

static final mathBlockKatexNegativeMarginsOnVlistRow = KatexExample.block(
'math block, KaTeX negative margins on a vlist row',
static final vlistNegativeMargin = KatexExample.block(
'vlist using negative margin (subscript X_n)',
// https://chat.zulip.org/#narrow/channel/7-test-here/topic/Rajesh/near/2224918
'X_n',
'<p>'
Expand Down Expand Up @@ -571,17 +571,17 @@ class KatexExample extends ContentExample {
void main() async {
TestZulipBinding.ensureInitialized();

testParseExample(KatexExample.mathBlockKatexSizing);
testParseExample(KatexExample.mathBlockKatexNestedSizing);
testParseExample(KatexExample.mathBlockKatexDelimSizing);
testParseExample(KatexExample.mathBlockKatexSpace);
testParseExample(KatexExample.mathBlockKatexSuperscript);
testParseExample(KatexExample.mathBlockKatexSubscript);
testParseExample(KatexExample.mathBlockKatexSubSuperScript);
testParseExample(KatexExample.mathBlockKatexRaisebox);
testParseExample(KatexExample.mathBlockKatexNegativeMargin);
testParseExample(KatexExample.mathBlockKatexLogo);
testParseExample(KatexExample.mathBlockKatexNegativeMarginsOnVlistRow);
testParseExample(KatexExample.sizing);
testParseExample(KatexExample.nestedSizing);
testParseExample(KatexExample.delimsizing);
testParseExample(KatexExample.spacing);
testParseExample(KatexExample.vlistSuperscript);
testParseExample(KatexExample.vlistSubscript);
testParseExample(KatexExample.vlistSubAndSuperscript);
testParseExample(KatexExample.vlistRaisebox);
testParseExample(KatexExample.negativeMargin);
testParseExample(KatexExample.katexLogo);
testParseExample(KatexExample.vlistNegativeMargin);

test('all KaTeX content examples are tested', () {
// Check that every KatexExample defined above has a corresponding
Expand Down
164 changes: 81 additions & 83 deletions test/widgets/katex_test.dart
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -11,95 +11,93 @@ import 'content_test.dart';
void main() {
TestZulipBinding.ensureInitialized();

group('MathBlock', () {
group('characters render at specific offsets with specific size', () {
final testCases = <(KatexExample, List<(String, Offset, Size)>, {bool? skip})>[
(KatexExample.mathBlockKatexSizing, skip: false, [
('1', Offset(0.00, 2.24), Size(25.59, 61.00)),
('2', Offset(25.59, 10.04), Size(21.33, 51.00)),
('3', Offset(46.91, 16.55), Size(17.77, 43.00)),
('4', Offset(64.68, 21.98), Size(14.80, 36.00)),
('5', Offset(79.48, 26.50), Size(12.34, 30.00)),
('6', Offset(91.82, 30.26), Size(10.28, 25.00)),
('7', Offset(102.10, 32.15), Size(9.25, 22.00)),
('8', Offset(111.35, 34.03), Size(8.23, 20.00)),
('9', Offset(119.58, 35.91), Size(7.20, 17.00)),
('0', Offset(126.77, 39.68), Size(5.14, 12.00)),
]),
(KatexExample.mathBlockKatexNestedSizing, skip: false, [
('1', Offset(0.00, 40.24), Size(5.14, 12.00)),
('2', Offset(5.14, 2.80), Size(25.59, 61.00)),
]),
(KatexExample.mathBlockKatexDelimSizing, skip: false, [
('(', Offset(8.00, 20.14), Size(9.42, 25.00)),
('[', Offset(17.42, 20.14), Size(9.71, 25.00)),
('⌈', Offset(27.12, 20.14), Size(11.99, 25.00)),
('⌊', Offset(39.11, 20.14), Size(13.14, 25.00)),
]),
(KatexExample.mathBlockKatexSpace, skip: false, [
('1', Offset(0.00, 2.24), Size(10.28, 25.00)),
(':', Offset(16.00, 2.24), Size(5.72, 25.00)),
('2', Offset(27.43, 2.24), Size(10.28, 25.00)),
]),
(KatexExample.mathBlockKatexSuperscript, skip: false, [
('a', Offset(0.00, 5.28), Size(10.88, 25.00)),
('′', Offset(10.88, 1.13), Size(3.96, 17.00)),
]),
(KatexExample.mathBlockKatexSubscript, skip: false, [
('x', Offset(0.00, 5.28), Size(11.76, 25.00)),
('n', Offset(11.76, 13.65), Size(8.63, 17.00)),
]),
(KatexExample.mathBlockKatexSubSuperScript, skip: false, [
('u', Offset(0.00, 15.65), Size(8.23, 17.00)),
('o', Offset(0.00, 2.07), Size(6.98, 17.00)),
]),
(KatexExample.mathBlockKatexRaisebox, skip: false, [
('a', Offset(0.00, 4.16), Size(10.88, 25.00)),
('b', Offset(10.88, -0.66), Size(8.82, 25.00)),
('c', Offset(19.70, 4.16), Size(8.90, 25.00)),
]),
(KatexExample.mathBlockKatexNegativeMargin, skip: false, [
('1', Offset(0.00, 3.12), Size(10.28, 25.00)),
('2', Offset(6.85, 3.36), Size(10.28, 25.00)),
]),
(KatexExample.mathBlockKatexLogo, skip: false, [
('K', Offset(0.0, 8.64), Size(16.0, 25.0)),
('A', Offset(12.50, 10.85), Size(10.79, 17.0)),
('T', Offset(20.21, 9.36), Size(14.85, 25.0)),
('E', Offset(31.63, 14.52), Size(14.0, 25.0)),
('X', Offset(43.06, 9.85), Size(15.42, 25.0)),
]),
(KatexExample.mathBlockKatexNegativeMarginsOnVlistRow, skip: false, [
('X', Offset(0.00, 7.04), Size(17.03, 25.00)),
('n', Offset(17.03, 15.90), Size(8.63, 17.00)),
]),
];
group('snapshot per-character rects', () {
final testCases = <(KatexExample, List<(String, Offset, Size)>, {bool? skip})>[
(KatexExample.sizing, skip: false, [
('1', Offset(0.00, 2.24), Size(25.59, 61.00)),
('2', Offset(25.59, 10.04), Size(21.33, 51.00)),
('3', Offset(46.91, 16.55), Size(17.77, 43.00)),
('4', Offset(64.68, 21.98), Size(14.80, 36.00)),
('5', Offset(79.48, 26.50), Size(12.34, 30.00)),
('6', Offset(91.82, 30.26), Size(10.28, 25.00)),
('7', Offset(102.10, 32.15), Size(9.25, 22.00)),
('8', Offset(111.35, 34.03), Size(8.23, 20.00)),
('9', Offset(119.58, 35.91), Size(7.20, 17.00)),
('0', Offset(126.77, 39.68), Size(5.14, 12.00)),
]),
(KatexExample.nestedSizing, skip: false, [
('1', Offset(0.00, 40.24), Size(5.14, 12.00)),
('2', Offset(5.14, 2.80), Size(25.59, 61.00)),
]),
(KatexExample.delimsizing, skip: false, [
('(', Offset(8.00, 20.14), Size(9.42, 25.00)),
('[', Offset(17.42, 20.14), Size(9.71, 25.00)),
('⌈', Offset(27.12, 20.14), Size(11.99, 25.00)),
('⌊', Offset(39.11, 20.14), Size(13.14, 25.00)),
]),
(KatexExample.spacing, skip: false, [
('1', Offset(0.00, 2.24), Size(10.28, 25.00)),
(':', Offset(16.00, 2.24), Size(5.72, 25.00)),
('2', Offset(27.43, 2.24), Size(10.28, 25.00)),
]),
(KatexExample.vlistSuperscript, skip: false, [
('a', Offset(0.00, 5.28), Size(10.88, 25.00)),
('′', Offset(10.88, 1.13), Size(3.96, 17.00)),
]),
(KatexExample.vlistSubscript, skip: false, [
('x', Offset(0.00, 5.28), Size(11.76, 25.00)),
('n', Offset(11.76, 13.65), Size(8.63, 17.00)),
]),
(KatexExample.vlistSubAndSuperscript, skip: false, [
('u', Offset(0.00, 15.65), Size(8.23, 17.00)),
('o', Offset(0.00, 2.07), Size(6.98, 17.00)),
]),
(KatexExample.vlistRaisebox, skip: false, [
('a', Offset(0.00, 4.16), Size(10.88, 25.00)),
('b', Offset(10.88, -0.66), Size(8.82, 25.00)),
('c', Offset(19.70, 4.16), Size(8.90, 25.00)),
]),
(KatexExample.negativeMargin, skip: false, [
('1', Offset(0.00, 3.12), Size(10.28, 25.00)),
('2', Offset(6.85, 3.36), Size(10.28, 25.00)),
]),
(KatexExample.katexLogo, skip: false, [
('K', Offset(0.0, 8.64), Size(16.0, 25.0)),
('A', Offset(12.50, 10.85), Size(10.79, 17.0)),
('T', Offset(20.21, 9.36), Size(14.85, 25.0)),
('E', Offset(31.63, 14.52), Size(14.0, 25.0)),
('X', Offset(43.06, 9.85), Size(15.42, 25.0)),
]),
(KatexExample.vlistNegativeMargin, skip: false, [
('X', Offset(0.00, 7.04), Size(17.03, 25.00)),
('n', Offset(17.03, 15.90), Size(8.63, 17.00)),
]),
];

for (final testCase in testCases) {
testWidgets(testCase.$1.description, (tester) async {
await _loadKatexFonts();
for (final testCase in testCases) {
testWidgets(testCase.$1.description, (tester) async {
await _loadKatexFonts();

await prepareContent(tester, plainContent(testCase.$1.html));
await prepareContent(tester, plainContent(testCase.$1.html));

final baseRect = tester.getRect(find.byType(KatexWidget));
final baseRect = tester.getRect(find.byType(KatexWidget));

for (final characterData in testCase.$2) {
final character = characterData.$1;
final expectedTopLeftOffset = characterData.$2;
final expectedSize = characterData.$3;
for (final characterData in testCase.$2) {
final character = characterData.$1;
final expectedTopLeftOffset = characterData.$2;
final expectedSize = characterData.$3;

final rect = tester.getRect(find.text(character));
final topLeftOffset = rect.topLeft - baseRect.topLeft;
final size = rect.size;
final rect = tester.getRect(find.text(character));
final topLeftOffset = rect.topLeft - baseRect.topLeft;
final size = rect.size;

check(topLeftOffset)
.within(distance: 0.05, from: expectedTopLeftOffset);
check(size)
.within(distance: 0.05, from: expectedSize);
}
}, skip: testCase.skip);
}
});
check(topLeftOffset)
.within(distance: 0.05, from: expectedTopLeftOffset);
check(size)
.within(distance: 0.05, from: expectedSize);
}
}, skip: testCase.skip);
}
});
}

Expand Down