Initial commit, source code of Gitea 1.23.1

modules/markup/markdown/markdown_math_test.go

@@ -0,0 +1,245 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package markdown
+
+import (
+	"strings"
+	"testing"
+
+	"code.gitea.io/gitea/modules/markup"
+
+	"github.com/stretchr/testify/assert"
+)
+
+const nl = "\n"
+
+func TestMathRender(t *testing.T) {
+	testcases := []struct {
+		testcase string
+		expected string
+	}{
+		{
+			"$a$",
+			`<p><code class="language-math">a</code></p>` + nl,
+		},
+		{
+			"$ a $",
+			`<p><code class="language-math">a</code></p>` + nl,
+		},
+		{
+			"$a$ $b$",
+			`<p><code class="language-math">a</code> <code class="language-math">b</code></p>` + nl,
+		},
+		{
+			`\(a\) \(b\)`,
+			`<p><code class="language-math">a</code> <code class="language-math">b</code></p>` + nl,
+		},
+		{
+			`$a$.`,
+			`<p><code class="language-math">a</code>.</p>` + nl,
+		},
+		{
+			`.$a$`,
+			`<p>.$a$</p>` + nl,
+		},
+		{
+			`$a a$b b$`,
+			`<p>$a a$b b$</p>` + nl,
+		},
+		{
+			`a a$b b`,
+			`<p>a a$b b</p>` + nl,
+		},
+		{
+			`a$b $a a$b b$`,
+			`<p>a$b $a a$b b$</p>` + nl,
+		},
+		{
+			"a$x$",
+			`<p>a$x$</p>` + nl,
+		},
+		{
+			"$x$a",
+			`<p>$x$a</p>` + nl,
+		},
+		{
+			"$a$ ($b$) [$c$] {$d$}",
+			`<p><code class="language-math">a</code> (<code class="language-math">b</code>) [$c$] {$d$}</p>` + nl,
+		},
+		{
+			"$$a$$",
+			`<code class="language-math display">a</code>` + nl,
+		},
+		{
+			"$$a$$ test",
+			`<p><code class="language-math">a</code> test</p>` + nl,
+		},
+		{
+			"test $$a$$",
+			`<p>test <code class="language-math">a</code></p>` + nl,
+		},
+		{
+			`foo $x=\$$ bar`,
+			`<p>foo <code class="language-math">x=\$</code> bar</p>` + nl,
+		},
+		{
+			`$\text{$b$}$`,
+			`<p><code class="language-math">\text{$b$}</code></p>` + nl,
+		},
+		{
+			"a$`b`$c",
+			`<p>a<code class="language-math">b</code>c</p>` + nl,
+		},
+		{
+			"a $`b`$ c",
+			`<p>a <code class="language-math">b</code> c</p>` + nl,
+		},
+		{
+			"a$``b``$c x$```y```$z",
+			`<p>a<code class="language-math">b</code>c x<code class="language-math">y</code>z</p>` + nl,
+		},
+	}
+
+	for _, test := range testcases {
+		t.Run(test.testcase, func(t *testing.T) {
+			res, err := RenderString(markup.NewTestRenderContext(), test.testcase)
+			assert.NoError(t, err)
+			assert.Equal(t, test.expected, string(res))
+		})
+	}
+}
+
+func TestMathRenderBlockIndent(t *testing.T) {
+	testcases := []struct {
+		name     string
+		testcase string
+		expected string
+	}{
+		{
+			"indent-0",
+			`
+\[
+\alpha
+\]
+`,
+			`<pre class="code-block is-loading"><code class="language-math display">
+\alpha
+</code></pre>
+`,
+		},
+		{
+			"indent-1",
+			`
+ \[
+ \alpha
+ \]
+`,
+			`<pre class="code-block is-loading"><code class="language-math display">
+\alpha
+</code></pre>
+`,
+		},
+		{
+			"indent-2-mismatch",
+			`
+  \[
+a
+ b
+  c
+   d
+  \]
+`,
+			`<pre class="code-block is-loading"><code class="language-math display">
+a
+b
+c
+ d
+</code></pre>
+`,
+		},
+		{
+			"indent-2",
+			`
+  \[
+  a
+   b
+  c
+  \]
+`,
+			`<pre class="code-block is-loading"><code class="language-math display">
+a
+ b
+c
+</code></pre>
+`,
+		},
+		{
+			"indent-0-oneline",
+			`$$ x $$
+foo`,
+			`<code class="language-math display"> x </code>
+<p>foo</p>
+`,
+		},
+		{
+			"indent-3-oneline",
+			`   $$ x $$<SPACE>
+foo`,
+			`<code class="language-math display"> x </code>
+<p>foo</p>
+`,
+		},
+		{
+			"quote-block",
+			`
+> \[
+> a
+> \]
+> \[
+> b
+> \]
+`,
+			`<blockquote>
+<pre class="code-block is-loading"><code class="language-math display">
+a
+</code></pre>
+<pre class="code-block is-loading"><code class="language-math display">
+b
+</code></pre>
+</blockquote>
+`,
+		},
+		{
+			"list-block",
+			`
+1. a
+   \[
+   x
+   \]
+2. b`,
+			`<ol>
+<li>a
+<pre class="code-block is-loading"><code class="language-math display">
+x
+</code></pre>
+</li>
+<li>b</li>
+</ol>
+`,
+		},
+		{
+			"inline-non-math",
+			`\[x]`,
+			`<p>[x]</p>` + nl,
+		},
+	}
+
+	for _, test := range testcases {
+		t.Run(test.name, func(t *testing.T) {
+			res, err := RenderString(markup.NewTestRenderContext(), strings.ReplaceAll(test.testcase, "<SPACE>", " "))
+			assert.NoError(t, err)
+			assert.Equal(t, test.expected, string(res), "unexpected result for test case:\n%s", test.testcase)
+		})
+	}
+}