refactor(server): rename md -> markdown for consistency

src/services/export/markdown.spec.ts

@@ -0,0 +1,100 @@
+import { describe, it, expect } from "vitest";
+import markdownExportService from "./markdown.js";
+import { trimIndentation } from "../../../spec/support/utils.js";
+
+describe("Markdown export", () => {
+
+    it("exports correct language tag for known languages", () => {
+        const conversionTable = {
+            "language-text-x-nginx-conf": "nginx",
+            "language-text-x-diff": "diff",
+            "language-application-javascript-env-frontend": "javascript",
+            "language-application-javascript-env-backend": "javascript",
+            "language-text-x-asm-mips": "mips"
+        };
+
+        for (const [ input, output ] of Object.entries(conversionTable)) {
+            const html = trimIndentation`\
+                <p>A diff:</p>
+                <pre><code class="${input}">Hello
+                -world
+                +worldy
+                </code></pre>`;
+            const expected = trimIndentation`\
+                A diff:
+
+                \`\`\`${output}
+                Hello
+                -world
+                +worldy
+
+                \`\`\``;
+
+            expect(markdownExportService.toMarkdown(html)).toBe(expected);
+        }
+    });
+
+    it("removes auto tag for code blocks", () => {
+        const html = trimIndentation`\
+            <pre><code class="language-text-x-trilium-auto">Hello
+            -world
+            +worldy
+            </code></pre>`;
+        const expected = trimIndentation`\
+            \`\`\`
+            Hello
+            -world
+            +worldy
+
+            \`\`\``;
+
+        expect(markdownExportService.toMarkdown(html)).toBe(expected);
+    });
+
+    it("supports code block with no language tag", () => {
+        const html = trimIndentation`\
+            <pre><code>Hello</code></pre>`;
+        const expected = trimIndentation`\
+            \`\`\`
+            Hello
+            \`\`\``;
+
+        expect(markdownExportService.toMarkdown(html)).toBe(expected);
+    });
+
+    it("exports strikethrough text correctly", () => {
+        const html = "<s>hello</s>Hello <s>world</s>";
+        const expected = "~~hello~~Hello ~~world~~";
+        expect(markdownExportService.toMarkdown(html)).toBe(expected);
+    });
+
+    it("exports headings properly", () => {
+        const html = trimIndentation`\
+            <h1>Heading 1</h1>
+            <h2>Heading 2</h2>
+            <h3>Heading 3</h3>
+            <h4>Heading 4</h4>
+            <h5>Heading 5</h5>
+            <h6>Heading 6</h6>
+        `;
+        const expected = trimIndentation`\
+            # Heading 1
+
+            ## Heading 2
+
+            ### Heading 3
+
+            #### Heading 4
+
+            ##### Heading 5
+
+            ###### Heading 6`;
+        expect(markdownExportService.toMarkdown(html)).toBe(expected);
+    });
+
+    it("rewrites image URL with spaces", () => {
+        const html = `<img src="Hello world  .png"/>`;
+        const expected = `![](Hello%20world%20%20.png)`;
+        expect(markdownExportService.toMarkdown(html)).toBe(expected);
+    });
+});