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69 lines
3.5 KiB
C#
69 lines
3.5 KiB
C#
using AIStudio.Chat;
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namespace AIStudio.Tests.Chat;
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/// <summary>
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/// Checks which code blocks of LaTeX the chat shows as a formula.
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/// </summary>
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[TestFixture]
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public sealed class LatexFormulaTests
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{
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[TestCase(@"\frac{a}{b}")]
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[TestCase(@"\iint_D f(x,y)\,\mathrm{d}x\,\mathrm{d}y")]
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[TestCase(@"\text{if } x > 0", Description = "Text inside a formula is part of it.")]
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[TestCase("a^2\n+ b^2\n= c^2", Description = "A formula may take several lines.")]
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[TestCase(@"\begin{pmatrix} 1 & 0 \\ 0 & 1 \end{pmatrix}")]
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[TestCase("\\begin{align}\n a &= b \\\\\n c &= d\n\\end{align}")]
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[TestCase(@"f(x) = \begin{cases} 1 & x > 0 \\ 0 & \text{otherwise} \end{cases}")]
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[TestCase(@"x_{max} = \max_i x_i", Description = "A word inside braces is part of the formula.")]
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[TestCase(@"\lim_{n \to \infty} \left\{ a_n \right\}")]
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public void AFormulaIsAFormula(string latex)
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{
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Assert.That(LatexFormula.IsFormulaOnly(latex), Is.True);
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}
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[TestCase("\\documentclass{article}\n\\begin{document}\nHello\n\\end{document}", TestName = "A document")]
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[TestCase(@"\section{Results} The energy grows.", TestName = "A section")]
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[TestCase(@"\begin{itemize} \item One \end{itemize}", TestName = "A list")]
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[TestCase(@"\begin{tabular}{ll} a & b \end{tabular}", TestName = "A table")]
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[TestCase(@"\includegraphics{plot.png}", TestName = "A figure")]
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[TestCase("The value $x$ grows.", TestName = "Text with a formula in it")]
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[TestCase(@"The value \(x\) grows.", TestName = "Text with a formula in parentheses in it")]
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[TestCase("a^2 + b^2 = c^2\n\nE = mc^2", TestName = "Two formulas apart")]
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[TestCase("The content.", TestName = "A sentence")]
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[TestCase("Let x be a number.", TestName = "A sentence with short words")]
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[TestCase(@"\begin{align", TestName = "An environment which never opens")]
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public void MoreThanAFormulaIsNoFormula(string latex)
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{
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Assert.That(LatexFormula.IsFormulaOnly(latex), Is.False, "MathJax would typeset it all as one formula.");
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}
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[TestCase("latex", " E = mc^2 ", "E = mc^2")]
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[TestCase("tex", "E = mc^2", "E = mc^2")]
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[TestCase("LaTeX", "E = mc^2", "E = mc^2", Description = "The language is read in any case.")]
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[TestCase("latex", "$$\nE = mc^2\n$$", "E = mc^2", Description = "The markers inside the block are no part of the formula.")]
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[TestCase("latex", @"\[ E = mc^2 \]", "E = mc^2")]
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[TestCase("latex", @"\(E = mc^2\)", "E = mc^2")]
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[TestCase("latex", "$E = mc^2$", "E = mc^2")]
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[TestCase("math", @"\section{x}", @"\section{x}", Description = "A block of math holds a formula only, whatever it looks like.")]
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public void TheFormulaOfACodeBlockIsFound(string fenceLanguage, string code, string expected)
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{
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var found = LatexFormula.TryFind(fenceLanguage, code, out var formula);
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using (Assert.EnterMultipleScope())
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{
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Assert.That(found, Is.True);
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Assert.That(found ? code[formula] : null, Is.EqualTo(expected));
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}
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}
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[TestCase("latex", "", TestName = "An empty block")]
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[TestCase("math", "$$ $$", TestName = "Nothing but markers")]
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[TestCase("latex", @"\section{Results}", TestName = "A section of a document")]
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[TestCase("python", "E = mc^2", TestName = "Code in another language")]
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[TestCase("", "E = mc^2", TestName = "A block without a language")]
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public void ACodeBlockWithoutAFormulaHasNone(string fenceLanguage, string code)
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{
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Assert.That(LatexFormula.TryFind(fenceLanguage, code, out _), Is.False);
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}
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} |