Ignored Title

#include #include #include #include #include "BookXPath.h" // ============================================================================ // In-memory stored-ZIP fixture: BookXPath streams chapters through the // engine's ZipEntryReader, which reads the entry's local file header first, // so the buffer must be a structurally valid (uncompressed) zip member. // ============================================================================ namespace { using freeink::book::BookSource; using freeink::book::ZipCatalog; using freeink::book::ZipEntry; class MemorySource : public BookSource { public: explicit MemorySource(std::vector bytes) : bytes_(std::move(bytes)) {} int32_t readAt(uint64_t offset, void* dst, uint32_t len) override { if (offset >= bytes_.size()) return 0; const uint32_t n = std::min(len, bytes_.size() - offset); memcpy(dst, bytes_.data() + offset, n); return static_cast(n); } uint64_t size() const override { return bytes_.size(); } private: std::vector bytes_; }; void putU16(std::vector& v, uint16_t x) { v.push_back(x & 0xFF); v.push_back(x >> 8); } void putU32(std::vector& v, uint32_t x) { for (int i = 0; i < 4; ++i) v.push_back((x >> (8 * i)) & 0xFF); } // One stored (method 0) zip member at offset 0, plus the matching ZipEntry. struct Fixture { MemorySource source; ZipEntry entry; ZipCatalog zip; // unused by BookXPath but part of its signature static Fixture fromXhtml(const std::string& xhtml) { std::vector buf; const char* name = "ch.xhtml"; putU32(buf, 0x04034b50); // local file header signature putU16(buf, 20); // version needed putU16(buf, 0); // flags putU16(buf, 0); // method: stored putU16(buf, 0); // mod time putU16(buf, 0); // mod date putU32(buf, 0); // crc-32 (not validated on stored reads) putU32(buf, static_cast(xhtml.size())); // compressed size putU32(buf, static_cast(xhtml.size())); // uncompressed size putU16(buf, static_cast(strlen(name))); // name length putU16(buf, 0); // extra length buf.insert(buf.end(), name, name + strlen(name)); buf.insert(buf.end(), xhtml.begin(), xhtml.end()); Fixture f{MemorySource(std::move(buf)), ZipEntry{}, ZipCatalog{}}; f.entry.name = "ch.xhtml"; f.entry.method = 0; f.entry.compressedSize = static_cast(xhtml.size()); f.entry.uncompressedSize = static_cast(xhtml.size()); f.entry.localHeaderOffset = 0; return f; } }; // Character accounting reference for kChapter (mirrors ChapterLayout): // p1 "Hello world" chars 0..10 // p2 "Second para here" chars 11..26 // p3 "Third" chars 27..31 const char kChapter[] = "" "" "Ignored Title" "" "

Hello world

Second para here

" "

Third

" ""; } // namespace TEST(BookXPath, SpineIndexFromXpath) { EXPECT_EQ(BookXPath::spineIndexForXpath("/body/DocFragment[8]/body/p[4]/text().96"), 7); EXPECT_EQ(BookXPath::spineIndexForXpath("/body/DocFragment[1]"), 0); EXPECT_EQ(BookXPath::spineIndexForXpath("/body/nope"), -1); EXPECT_EQ(BookXPath::spineIndexForXpath(""), -1); } TEST(BookXPath, CharStartToXpathRealAncestry) { auto f = Fixture::fromXhtml(kChapter); // Char 0: first char of p1 inside the div. EXPECT_EQ(BookXPath::xpathForCharStart(f.source, f.zip, f.entry, 2, 0), "/body/DocFragment[3]/body/div[1]/p[1]/text().0"); // Char 13 = "cond..." — 3rd char (offset 2) of p2. Whitespace in p1 // ("Hello world") must have collapsed to a single space for this to hold. EXPECT_EQ(BookXPath::xpathForCharStart(f.source, f.zip, f.entry, 2, 13), "/body/DocFragment[3]/body/div[1]/p[2]/text().2"); // Char 28 = 2nd char of p3 — body's FIRST p child (div doesn't count: // sibling indices are per-tag). EXPECT_EQ(BookXPath::xpathForCharStart(f.source, f.zip, f.entry, 2, 28), "/body/DocFragment[3]/body/p[1]/text().1"); // Past the end of the chapter: chapter-level fallback. EXPECT_EQ(BookXPath::xpathForCharStart(f.source, f.zip, f.entry, 2, 100000), "/body/DocFragment[3]"); } TEST(BookXPath, XpathToCharStartRoundTrip) { auto f = Fixture::fromXhtml(kChapter); uint32_t ch = 0; ASSERT_TRUE(BookXPath::charStartForXpath(f.source, f.zip, f.entry, "/body/DocFragment[3]/body/div[1]/p[2]/text().2", &ch)); EXPECT_EQ(ch, 13u); ASSERT_TRUE( BookXPath::charStartForXpath(f.source, f.zip, f.entry, "/body/DocFragment[3]/body/p[1]/text().1", &ch)); EXPECT_EQ(ch, 28u); // Elements without an explicit index default to [1]. ASSERT_TRUE( BookXPath::charStartForXpath(f.source, f.zip, f.entry, "/body/DocFragment[3]/body/div/p[1]/text().5", &ch)); EXPECT_EQ(ch, 5u); // Chapter-level xpath resolves to the chapter start. ASSERT_TRUE(BookXPath::charStartForXpath(f.source, f.zip, f.entry, "/body/DocFragment[3]", &ch)); EXPECT_EQ(ch, 0u); // Ancestry that does not exist in the chapter. EXPECT_FALSE(BookXPath::charStartForXpath(f.source, f.zip, f.entry, "/body/DocFragment[3]/body/section[2]/p[9]/text().0", &ch)); } TEST(BookXPath, InlineElementTargetsResolve) { auto f = Fixture::fromXhtml(kChapter); // KOReader may point inside an inline element: para starts at // char 18 ("Second " = 7 chars into p2, which starts at 11). uint32_t ch = 0; ASSERT_TRUE(BookXPath::charStartForXpath(f.source, f.zip, f.entry, "/body/DocFragment[3]/body/div[1]/p[2]/i[1]/text().0", &ch)); EXPECT_EQ(ch, 18u); } TEST(BookXPath, EntitiesAndBrAccounting) { // "A&B" is 3 chars;
contributes one '\n' char (layout parity). auto f = Fixture::fromXhtml( "

A&B
C

"); EXPECT_EQ(BookXPath::xpathForCharStart(f.source, f.zip, f.entry, 0, 4), "/body/DocFragment[1]/body/p[1]/text().4"); // 'C' after A,&,B,\n uint32_t ch = 0; ASSERT_TRUE(BookXPath::charStartForXpath(f.source, f.zip, f.entry, "/body/DocFragment[1]/body/p[1]/text().4", &ch)); EXPECT_EQ(ch, 4u); }