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2026-07-13 13:00:08 +08:00

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此文件含有模棱两可的 Unicode 字符
此文件含有可能会与其他字符混淆的 Unicode 字符。 如果您是想特意这样的,可以安全地忽略该警告。 使用 Escape 按钮显示他们。
package cli
import (
"strings"
"testing"
)
func TestLatexToUnicode(t *testing.T) {
cases := []struct {
in, want string
}{
{`E = mc^2`, "E = mc²"},
{`x^{n+1}`, "xⁿ⁺¹"},
{`H_2O`, "H₂O"},
{`x_i^2`, "xᵢ²"},
{`\alpha + \beta = \gamma`, "α + β = γ"},
{`\sum_{i=1}^{n} i`, "∑ᵢ₌₁ⁿ i"},
{`\int_0^1 x\,dx`, "∫₀¹ x dx"},
{`\frac{1}{2}`, "1/2"},
{`\frac{x+1}{2}`, "(x+1)/2"},
{`\sqrt{2}`, "√2"},
{`\sqrt{x+y}`, "√(x+y)"},
{`\sqrt[3]{x}`, "∛x"},
{`a \leq b \neq c`, "a ≤ b ≠ c"},
{`\mathbb{R}^n`, "ℝⁿ"},
{`\text{if } x > 0`, "if x > 0"},
{`\vec{v}`, "v⃗"},
{`a^q`, "a^q"},
{`f(x) = x^{2y}`, "f(x) = x²ʸ"},
}
for _, c := range cases {
if got := latexToUnicode(c.in); got != c.want {
t.Errorf("latexToUnicode(%q) = %q, want %q", c.in, got, c.want)
}
}
}
func TestNormalizeMath(t *testing.T) {
cases := []struct {
in, want string
}{
{`\(x+1\)`, "$x+1$"},
{`\[x+1\]`, "$$x+1$$"},
{"$$\nE = mc^2\n$$", "$$ E = mc^2 $$"},
{"`\\(literal\\)`", "`\\(literal\\)`"},
{"```\n\\[code\\]\n```", "```\n\\[code\\]\n```"},
}
for _, c := range cases {
if got := normalizeMath(c.in); got != c.want {
t.Errorf("normalizeMath(%q) = %q, want %q", c.in, got, c.want)
}
}
}
func TestRenderInlineMath(t *testing.T) {
colorEnabled = false
r := newMarkdownRenderer(80)
out := r.Render(`The mass-energy relation is $E = mc^2$ exactly.`)
if !strings.Contains(out, "E = mc²") {
t.Errorf("inline math not rendered: %q", out)
}
out = r.Render(`It costs $5 and then $10 total.`)
if !strings.Contains(out, "$5 and then $10") {
t.Errorf("currency wrongly parsed as math: %q", out)
}
out = r.Render("$$\n\\int_0^1 x\\,dx = \\frac{1}{2}\n$$")
if !strings.Contains(out, "∫₀¹ x dx = 1/2") {
t.Errorf("display math not rendered: %q", out)
}
out = r.Render("Code stays literal: `$x^2$` here.")
if !strings.Contains(out, "$x^2$") {
t.Errorf("math inside code span was converted: %q", out)
}
}