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https://github.com/tiennm99/monkeyd-crawler.git
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tiennm99
fb903e3262
PDF rendering failed on Linux with "stat usr/share/fonts/...: no such file or directory": fpdf joins the font path onto its own font directory, which it defaults to ".", so path.Join turns an absolute path into a working-directory-relative one. It only resolved when the process happened to run from the filesystem root, which is why Windows was unaffected. Font data is now read by pdfout and handed over as bytes. LoadFont also falls back to a bundled DejaVu Sans, so a host with no fonts installed still renders. An explicitly requested font remains a hard error when unreadable rather than being silently substituted. Tests verify the bundled font parses and covers Vietnamese, which is the reason it exists.
99 lines
2.5 KiB
Go
99 lines
2.5 KiB
Go
package pdfout
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import (
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"os"
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"path/filepath"
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"testing"
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)
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func testOptions(t *testing.T) Options {
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t.Helper()
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// LoadFont("") cannot fail — it ends at the bundled font — so unlike the
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// old FindFont call this never skips for want of a system font.
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font, err := LoadFont("")
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if err != nil {
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t.Fatalf("LoadFont: %v", err)
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}
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return Options{
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Page: Presets["phone"],
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Margin: 6,
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Font: font,
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FontSize: 12,
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LineSpacing: 1.55,
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Title: "TRỞ LẠI NĂM THÁNG CŨ",
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SourceURL: "https://example.test/n.html",
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}
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}
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func TestWriteProducesReadablePDF(t *testing.T) {
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path := filepath.Join(t.TempDir(), "out.pdf")
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chapters := []Chapter{
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{Heading: "Chương 1", Paragraphs: []string{
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"Nghe vị trưởng tử nói chuyện với nàng.",
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"Một đoạn văn khác để kiểm tra ngắt dòng tự động trên trang nhỏ.",
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}},
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{Heading: "Chương 2", Paragraphs: []string{"Đoạn cuối."}},
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}
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if err := Write(path, testOptions(t), chapters); err != nil {
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t.Fatalf("Write: %v", err)
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}
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info, err := os.Stat(path)
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if err != nil {
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t.Fatalf("stat output: %v", err)
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}
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if info.Size() == 0 {
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t.Fatal("wrote an empty PDF")
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}
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header := make([]byte, 5)
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f, err := os.Open(path)
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if err != nil {
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t.Fatal(err)
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}
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defer f.Close()
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if _, err := f.Read(header); err != nil {
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t.Fatal(err)
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}
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if string(header) != "%PDF-" {
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t.Errorf("output does not start with a PDF header, got %q", header)
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}
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}
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// A novel with many chapters must not overflow a page; auto page break plus the
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// footer reserve handles that, so a long chapter should span several pages.
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func TestWriteHandlesLongChapters(t *testing.T) {
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path := filepath.Join(t.TempDir(), "long.pdf")
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paragraphs := make([]string, 200)
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for i := range paragraphs {
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paragraphs[i] = "Một đoạn văn dài để buộc trình kết xuất phải sang trang mới nhiều lần."
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}
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if err := Write(path, testOptions(t), []Chapter{{Heading: "Chương 1", Paragraphs: paragraphs}}); err != nil {
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t.Fatalf("Write: %v", err)
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}
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info, err := os.Stat(path)
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if err != nil {
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t.Fatal(err)
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}
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if info.Size() < 2000 {
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t.Errorf("output suspiciously small (%d bytes) for 200 paragraphs", info.Size())
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}
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}
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func TestPresetNamesIsStable(t *testing.T) {
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got := PresetNames()
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want := []string{"a4", "a5", "phone"}
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if len(got) != len(want) {
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t.Fatalf("PresetNames() = %v, want %v", got, want)
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}
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for i := range want {
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if got[i] != want[i] {
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t.Errorf("PresetNames()[%d] = %q, want %q", i, got[i], want[i])
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}
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}
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}
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