53 lines
1.6 KiB
Go
53 lines
1.6 KiB
Go
package sanitize
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import (
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"strings"
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"testing"
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)
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func TestStripHiddenEmailHTML_removesMailchimpPreheaderPadding(t *testing.T) {
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const padding = "͏ \u200c \u00a0 \u2007 "
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in := `<div style="display: none; max-height: 0px; overflow: hidden;">` + strings.Repeat(padding, 20) + `</div>` +
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`<p>All motor files are now structured by model.</p>`
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out := StripHiddenEmailHTML(in)
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if strings.Contains(out, "\u034f") || strings.Contains(out, "\u200c") {
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t.Fatalf("invisible padding remains: %q", out)
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}
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if !strings.Contains(out, "All motor files") {
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t.Fatalf("visible content removed: %q", out)
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}
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}
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func TestSanitizeHTML_stripsHiddenPreheader(t *testing.T) {
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in := `<div style="display: none;">hidden junk</div><p>Hello world</p>`
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got := SanitizeHTML(in)
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if strings.Contains(got, "hidden junk") {
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t.Fatalf("hidden preheader leaked after sanitize: %q", got)
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}
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if !strings.Contains(got, "Hello world") {
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t.Fatalf("visible content missing: %q", got)
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}
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}
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func TestStripInvisibleTextRuns(t *testing.T) {
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in := "Hello " + strings.Repeat("\u034f\u200c\u00a0\u2007 ", 30) + "world"
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got := StripInvisibleTextRuns(in)
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if strings.Contains(got, "\u034f") {
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t.Fatalf("padding remains: %q", got)
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}
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if got != "Hello world" {
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t.Fatalf("got %q", got)
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}
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}
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func TestStripInvisibleTextRuns_preservesNewlines(t *testing.T) {
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in := "Reply line one\nOn 22/04/2026 wrote:\n> quoted"
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got := StripInvisibleTextRuns(in)
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if !strings.Contains(got, "\n") {
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t.Fatalf("newlines collapsed: %q", got)
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}
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if !strings.Contains(got, "> quoted") {
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t.Fatalf("quote line missing: %q", got)
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}
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}
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