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katex-test: Add unit tests for \overline and \underline
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‎test/model/katex_test.dart‎

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@@ -731,6 +731,109 @@ class KatexExample extends ContentExample {
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]),
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]),
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]);
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static final overline = KatexExample.block(
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// https://chat.zulip.org/#narrow/channel/7-test-here/topic/Saif.20KaTeX/near/2285099
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r'overline: \overline{AB}',
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r'\overline{AB}',
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'<p>'
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'<span class="katex-display"><span class="katex">'
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'<span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML" display="block"><semantics><mrow><mover accent="true"><mrow><mi>A</mi><mi>B</mi></mrow><mo stretchy="true">‾</mo></mover></mrow><annotation encoding="application/x-tex">\\overline{AB}</annotation></semantics></math></span>'
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'<span class="katex-html" aria-hidden="true">'
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'<span class="base">'
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'<span class="strut" style="height:0.8833em;"></span>'
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'<span class="mord overline">'
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'<span class="vlist-t">'
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'<span class="vlist-r">'
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'<span class="vlist" style="height:0.8833em;">'
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'<span style="top:-3em;">'
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'<span class="pstrut" style="height:3em;"></span>'
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'<span class="mord">'
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'<span class="mord mathnormal">A</span>'
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'<span class="mord mathnormal" style="margin-right:0.05017em;">B</span></span></span>'
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'<span style="top:-3.8033em;">'
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'<span class="pstrut" style="height:3em;"></span>'
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'<span class="overline-line" style="border-bottom-width:0.04em;"></span></span></span></span></span></span></span></span></span></p>',[
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KatexSpanNode(nodes: [
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KatexStrutNode(heightEm: 0.8833, verticalAlignEm: null),
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KatexSpanNode(nodes: [
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KatexVlistNode(rows: [
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KatexVlistRowNode(
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verticalOffsetEm: -3 + 3,
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node: KatexSpanNode(nodes: [
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KatexSpanNode(nodes: [
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KatexSpanNode(
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styles: KatexSpanStyles(fontFamily: 'KaTeX_Math', fontStyle: KatexSpanFontStyle.italic),
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text: 'A'),
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KatexSpanNode(
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styles: KatexSpanStyles(marginRightEm: 0.05017, fontFamily: 'KaTeX_Math', fontStyle: KatexSpanFontStyle.italic),
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text: 'B'),
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]),
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])),
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KatexVlistRowNode(
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verticalOffsetEm: -3.8033 + 3,
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node: KatexSpanNode(nodes: [
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KatexSpanNode(
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styles: KatexSpanStyles(widthEm: double.infinity, borderBottomStyle: KatexSpanBorderBottomStyle.solid, borderBottomWidthEm: 0.04),
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nodes: []),
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])),
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]),
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]),
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]),
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]);
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static final underline = KatexExample.block(
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// https://chat.zulip.org/#narrow/channel/7-test-here/topic/Saif.20KaTeX/near/2285099
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r'underline: \underline{AB}',
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r'\underline{AB}',
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'<p>'
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'<span class="katex-display"><span class="katex">'
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'<span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML" display="block"><semantics><mrow><munder accentunder="true"><mrow><mi>A</mi><mi>B</mi></mrow><mo stretchy="true">‾</mo></munder></mrow><annotation encoding="application/x-tex">\\underline{AB}</annotation></semantics></math></span>'
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'<span class="katex-html" aria-hidden="true">'
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'<span class="base">'
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'<span class="strut" style="height:0.8833em;vertical-align:-0.2em;"></span>'
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'<span class="mord underline">'
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'<span class="vlist-t vlist-t2">'
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'<span class="vlist-r">'
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'<span class="vlist" style="height:0.6833em;">'
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'<span style="top:-2.84em;">'
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'<span class="pstrut" style="height:3em;"></span>'
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'<span class="underline-line" style="border-bottom-width:0.04em;"></span></span>'
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'<span style="top:-3em;">'
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'<span class="pstrut" style="height:3em;"></span>'
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'<span class="mord">'
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'<span class="mord mathnormal">A</span>'
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'<span class="mord mathnormal" style="margin-right:0.05017em;">B</span></span></span></span>'
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'<span class="vlist-s">​</span></span>'
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'<span class="vlist-r">'
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'<span class="vlist" style="height:0.2em;"><span></span></span></span></span></span></span></span></span></span></p>',[
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KatexSpanNode(nodes: [
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KatexStrutNode(heightEm: 0.8833, verticalAlignEm: -0.2),
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KatexSpanNode(nodes: [
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KatexVlistNode(rows: [
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KatexVlistRowNode(
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verticalOffsetEm: -2.84 + 3,
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node: KatexSpanNode(nodes: [
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KatexSpanNode(
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styles: KatexSpanStyles(widthEm: double.infinity, borderBottomStyle: KatexSpanBorderBottomStyle.solid, borderBottomWidthEm: 0.04),
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nodes: []),
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])),
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KatexVlistRowNode(
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verticalOffsetEm: -3 + 3,
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node: KatexSpanNode(nodes: [
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KatexSpanNode(nodes: [
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KatexSpanNode(
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styles: KatexSpanStyles(fontFamily: 'KaTeX_Math', fontStyle: KatexSpanFontStyle.italic),
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text: 'A'),
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KatexSpanNode(
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styles: KatexSpanStyles(marginRightEm: 0.05017, fontFamily: 'KaTeX_Math', fontStyle: KatexSpanFontStyle.italic),
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text: 'B'),
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]),
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])),
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]),
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]),
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]),
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]);
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}
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void main() async {
@@ -754,6 +857,8 @@ void main() async {
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testParseExample(KatexExample.bigOperators);
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testParseExample(KatexExample.colonEquals);
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testParseExample(KatexExample.nulldelimiter);
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testParseExample(KatexExample.overline);
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testParseExample(KatexExample.underline);
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group('parseCssHexColor', () {
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const testCases = [

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