115 lines
3.8 KiB
TypeScript
115 lines
3.8 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import {
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plainTextToComposerBody,
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rewriteCidImagesForEditor,
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replaceInlineImagePlaceholders,
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INLINE_IMAGE_PLACEHOLDER,
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} from "../email-composer-utils";
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describe("plainTextToComposerBody", () => {
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it("returns an empty string for empty input", () => {
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expect(plainTextToComposerBody("")).toBe("");
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});
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it("escapes HTML before building composer paragraphs", () => {
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expect(plainTextToComposerBody("<script>alert('x') & \"q\"</script>")).toBe(
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"<p><script>alert('x') & "q"</script></p>"
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);
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});
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it("normalizes line endings and preserves single line breaks", () => {
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expect(plainTextToComposerBody("line1\r\nline2\rline3")).toBe(
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"<p>line1<br>line2<br>line3</p>"
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);
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});
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it("splits paragraphs on blank lines", () => {
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expect(plainTextToComposerBody("first\n\nsecond\nthird")).toBe(
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"<p>first</p><p>second<br>third</p>"
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);
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});
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});
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describe("rewriteCidImagesForEditor", () => {
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it("returns input unchanged when no cid: refs are present", () => {
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const html = '<p>hi</p><img src="https://example.com/x.png">';
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expect(rewriteCidImagesForEditor(html)).toBe(html);
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});
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it("handles empty input", () => {
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expect(rewriteCidImagesForEditor("")).toBe("");
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});
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it("rewrites a cid: src to placeholder + data-cid", () => {
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const out = rewriteCidImagesForEditor(
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'<img src="cid:abc@x" alt="logo">'
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);
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expect(out).toContain('data-cid="abc@x"');
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expect(out).toContain(`src="${INLINE_IMAGE_PLACEHOLDER}"`);
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expect(out).toContain('alt="logo"');
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expect(out).not.toContain('src="cid:');
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});
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it("preserves an existing data-cid attribute", () => {
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const out = rewriteCidImagesForEditor(
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'<img src="cid:abc" data-cid="kept">'
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);
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expect(out).toContain('data-cid="kept"');
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expect(out).not.toContain('data-cid="abc"');
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});
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it("leaves non-cid images alone", () => {
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const out = rewriteCidImagesForEditor(
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'<img src="https://example.com/x.png"><img src="cid:y">'
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);
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expect(out).toContain('src="https://example.com/x.png"');
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expect(out).toContain('data-cid="y"');
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});
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});
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describe("replaceInlineImagePlaceholders", () => {
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it("returns input unchanged when the map is empty", () => {
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const html = '<img src="..." data-cid="x">';
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expect(replaceInlineImagePlaceholders(html, new Map())).toBe(html);
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});
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it("swaps the placeholder src to the data URL for matching cids", () => {
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const html = `<img src="${INLINE_IMAGE_PLACEHOLDER}" data-cid="abc">`;
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const out = replaceInlineImagePlaceholders(
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html,
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new Map([["abc", "data:image/png;base64,AAAA"]])
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);
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expect(out).toContain('src="data:image/png;base64,AAAA"');
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expect(out).toContain('data-cid="abc"');
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});
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it("also rewrites raw cid: src refs that lack a placeholder", () => {
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const html = '<img src="cid:abc" data-cid="abc">';
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const out = replaceInlineImagePlaceholders(
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html,
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new Map([["abc", "data:image/png;base64,AAAA"]])
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);
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expect(out).toContain('src="data:image/png;base64,AAAA"');
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});
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it("does not overwrite images the user has re-pointed away from the cid", () => {
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const html =
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'<img src="https://example.com/other.png" data-cid="abc">';
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const out = replaceInlineImagePlaceholders(
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html,
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new Map([["abc", "data:image/png;base64,AAAA"]])
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);
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expect(out).toContain('src="https://example.com/other.png"');
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expect(out).not.toContain("data:image/png;base64,AAAA");
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});
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it("leaves unknown cids untouched", () => {
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const html = `<img src="${INLINE_IMAGE_PLACEHOLDER}" data-cid="missing">`;
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const out = replaceInlineImagePlaceholders(
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html,
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new Map([["abc", "data:image/png;base64,AAAA"]])
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);
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expect(out).toBe(html);
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});
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});
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