Index: fpdfsdk/src/fpdftext_embeddertest.cpp |
diff --git a/fpdfsdk/src/fpdftext_embeddertest.cpp b/fpdfsdk/src/fpdftext_embeddertest.cpp |
index 3198fe0f86b66565887a49844c803c5a6f35f6eb..14578326588c32274a95ce35aedb2641cf456293 100644 |
--- a/fpdfsdk/src/fpdftext_embeddertest.cpp |
+++ b/fpdfsdk/src/fpdftext_embeddertest.cpp |
@@ -7,17 +7,363 @@ |
#include "../../fpdfsdk/include/fpdftext.h" |
#include "testing/gtest/include/gtest/gtest.h" |
+namespace { |
+ |
+static bool check_unsigned_shorts(const char* expected, |
+ const unsigned short* actual, |
+ size_t length) { |
+ if (length > strlen(expected) + 1) { |
+ return false; |
+ } |
+ for (size_t i = 0; i < length; ++i) { |
+ if (actual[i] != static_cast<unsigned short>(expected[i])) { |
+ return false; |
+ } |
+ } |
+ return true; |
+} |
+ |
+} // namespace |
+ |
class FPDFTextEmbeddertest : public EmbedderTest { |
}; |
+TEST_F(FPDFTextEmbeddertest, Text) { |
+ EXPECT_TRUE(OpenDocument("testing/resources/hello_world.pdf")); |
+ FPDF_FORMHANDLE form_handle = SetFormFillEnvironment(); |
+ FPDF_PAGE page = LoadPage(0, form_handle); |
+ EXPECT_NE(nullptr, page); |
+ |
+ FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
+ EXPECT_NE(nullptr, textpage); |
+ |
+ const char expected[] = "Hello, world!\r\nGoodbye, world!"; |
+ unsigned short fixed_buffer[128]; |
+ memset(fixed_buffer, 0xbd, sizeof(fixed_buffer)); |
+ |
+ // Check includes the terminating NUL that is provided. |
+ EXPECT_EQ(sizeof(expected), FPDFText_GetText(textpage, 0, 128, fixed_buffer)); |
+ EXPECT_TRUE(check_unsigned_shorts(expected, fixed_buffer, sizeof(expected))); |
+ |
+ // Count does not include the terminating NUL in the string literal. |
+ EXPECT_EQ(sizeof(expected) - 1, FPDFText_CountChars(textpage)); |
+ for (size_t i = 0; i < sizeof(expected) - 1; ++i) { |
+ EXPECT_EQ(expected[i], FPDFText_GetUnicode(textpage, i)) << " at " << i; |
+ } |
+ |
+ EXPECT_EQ(12.0, FPDFText_GetFontSize(textpage, 0)); |
+ EXPECT_EQ(16.0, FPDFText_GetFontSize(textpage, 15)); |
+ |
+ double left = 0.0; |
+ double right = 0.0; |
+ double bottom = 0.0; |
+ double top = 0.0; |
+ FPDFText_GetCharBox(textpage, 4, &left, &right, &bottom, &top); |
+ EXPECT_NEAR(41.071, left, 0.001); |
+ EXPECT_NEAR(46.243, right, 0.001); |
+ EXPECT_NEAR(49.844, bottom, 0.001); |
+ EXPECT_NEAR(55.520, top, 0.001); |
+ |
+ EXPECT_EQ(4, FPDFText_GetCharIndexAtPos( |
+ textpage, 42.0, 50.0, 1.0, 1.0)); |
+ EXPECT_EQ(-1, FPDFText_GetCharIndexAtPos( |
+ textpage, 0.0, 0.0, 1.0, 1.0)); |
+ EXPECT_EQ(-1, FPDFText_GetCharIndexAtPos( |
+ textpage, 199.0, 199.0, 1.0, 1.0)); |
+ |
+ // Test out of range indicies. |
+ EXPECT_EQ(-1, FPDFText_GetCharIndexAtPos( |
+ textpage, 42.0, 10000000.0, 1.0, 1.0)); |
+ EXPECT_EQ(-1, FPDFText_GetCharIndexAtPos( |
+ textpage, -1.0, 50.0, 1.0, 1.0)); |
+ |
+ // Count does not include the terminating NUL in the string literal. |
+ EXPECT_EQ(2, FPDFText_CountRects(textpage, 0, sizeof(expected) - 1)); |
+ |
+ left = 0.0; |
+ right = 0.0; |
+ bottom = 0.0; |
+ top = 0.0; |
+ FPDFText_GetRect(textpage, 1, &left, &top, &right, &bottom); |
+ EXPECT_NEAR(20.847, left, 0.001); |
+ EXPECT_NEAR(135.167, right, 0.001); |
+ EXPECT_NEAR(96.655, bottom, 0.001); |
+ EXPECT_NEAR(116.000, top, 0.001); |
+ |
+ // Test out of range indicies set outputs to (0.0, 0.0, 0.0, 0.0). |
+ left = -1.0; |
+ right = -1.0; |
+ bottom = -1.0; |
+ top = -1.0; |
+ FPDFText_GetRect(textpage, -1, &left, &top, &right, &bottom); |
+ EXPECT_EQ(0.0, left); |
+ EXPECT_EQ(0.0, right); |
+ EXPECT_EQ(0.0, bottom); |
+ EXPECT_EQ(0.0, top); |
+ |
+ left = -2.0; |
+ right = -2.0; |
+ bottom = -2.0; |
+ top = -2.0; |
+ FPDFText_GetRect(textpage, 2, &left, &top, &right, &bottom); |
+ EXPECT_EQ(0.0, left); |
+ EXPECT_EQ(0.0, right); |
+ EXPECT_EQ(0.0, bottom); |
+ EXPECT_EQ(0.0, top); |
+ |
+ EXPECT_EQ(9, FPDFText_GetBoundedText( |
+ textpage, 41.0, 56.0, 82.0, 48.0, 0, 0)); |
+ |
+ // Extract starting at character 4 as above. |
+ memset(fixed_buffer, 0xbd, sizeof(fixed_buffer)); |
+ EXPECT_EQ(1, FPDFText_GetBoundedText( |
+ textpage, 41.0, 56.0, 82.0, 48.0, fixed_buffer, 1)); |
+ EXPECT_TRUE(check_unsigned_shorts(expected + 4, fixed_buffer, 1)); |
+ EXPECT_EQ(0xbdbd, fixed_buffer[1]); |
+ |
+ memset(fixed_buffer, 0xbd, sizeof(fixed_buffer)); |
+ EXPECT_EQ(9, FPDFText_GetBoundedText( |
+ textpage, 41.0, 56.0, 82.0, 48.0, fixed_buffer, 9)); |
+ EXPECT_TRUE(check_unsigned_shorts(expected + 4, fixed_buffer, 9)); |
+ EXPECT_EQ(0xbdbd, fixed_buffer[9]); |
+ |
+ memset(fixed_buffer, 0xbd, sizeof(fixed_buffer)); |
+ EXPECT_EQ(10, FPDFText_GetBoundedText( |
+ textpage, 41.0, 56.0, 82.0, 48.0, fixed_buffer, 128)); |
+ EXPECT_TRUE(check_unsigned_shorts(expected + 4, fixed_buffer, 9)); |
+ EXPECT_EQ(0u, fixed_buffer[9]); |
+ EXPECT_EQ(0xbdbd, fixed_buffer[10]); |
+ |
+ FPDFText_ClosePage(textpage); |
+ ClearFormFillEnvironment(form_handle); |
+} |
+ |
+TEST_F(FPDFTextEmbeddertest, TextSearch) { |
+ EXPECT_TRUE(OpenDocument("testing/resources/hello_world.pdf")); |
+ FPDF_FORMHANDLE form_handle = SetFormFillEnvironment(); |
+ FPDF_PAGE page = LoadPage(0, form_handle); |
+ EXPECT_NE(nullptr, page); |
+ |
+ FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
+ EXPECT_NE(nullptr, textpage); |
+ |
+ // Avoid issues with system wchar_t width vs. FPDF_WideString. |
+ const unsigned short nope[] = { 'n', 'o', 'p', 'e', '\0' }; |
+ const unsigned short world[] = { 'w', 'o', 'r', 'l', 'd', '\0' }; |
+ const unsigned short world_caps[] = { 'W', 'O', 'R', 'L', 'D', '\0' }; |
+ const unsigned short world_substr[] = { 'o', 'r', 'l', 'd', '\0' }; |
+ |
+ // No occurences of "nope" in test page. |
+ FPDF_SCHHANDLE search = FPDFText_FindStart(textpage, nope, 0, 0); |
+ EXPECT_NE(nullptr, search); |
+ EXPECT_EQ(0, FPDFText_GetSchResultIndex(search)); |
+ EXPECT_EQ(0, FPDFText_GetSchCount(search)); |
+ |
+ // Advancing finds nothing. |
+ EXPECT_FALSE(FPDFText_FindNext(search)); |
+ EXPECT_EQ(0, FPDFText_GetSchResultIndex(search)); |
+ EXPECT_EQ(0, FPDFText_GetSchCount(search)); |
+ |
+ // Retreating finds nothing. |
+ EXPECT_FALSE(FPDFText_FindPrev(search)); |
+ EXPECT_EQ(0, FPDFText_GetSchResultIndex(search)); |
+ EXPECT_EQ(0, FPDFText_GetSchCount(search)); |
+ FPDFText_FindClose(search); |
+ |
+ // Two occurences of "world" in test page. |
+ search = FPDFText_FindStart(textpage, world, 0, 2); |
+ EXPECT_NE(nullptr, search); |
+ |
+ // Remains not found until advanced. |
+ EXPECT_EQ(0, FPDFText_GetSchResultIndex(search)); |
+ EXPECT_EQ(0, FPDFText_GetSchCount(search)); |
+ |
+ // First occurence of "world" in this test page. |
+ EXPECT_TRUE(FPDFText_FindNext(search)); |
+ EXPECT_EQ(7, FPDFText_GetSchResultIndex(search)); |
+ EXPECT_EQ(5, FPDFText_GetSchCount(search)); |
+ |
+ // Last occurence of "world" in this test page. |
+ EXPECT_TRUE(FPDFText_FindNext(search)); |
+ EXPECT_EQ(24, FPDFText_GetSchResultIndex(search)); |
+ EXPECT_EQ(5, FPDFText_GetSchCount(search)); |
+ |
+ // Found position unchanged when fails to advance. |
+ EXPECT_FALSE(FPDFText_FindNext(search)); |
+ EXPECT_EQ(24, FPDFText_GetSchResultIndex(search)); |
+ EXPECT_EQ(5, FPDFText_GetSchCount(search)); |
+ |
+ // Back to first occurence. |
+ EXPECT_TRUE(FPDFText_FindPrev(search)); |
+ EXPECT_EQ(7, FPDFText_GetSchResultIndex(search)); |
+ EXPECT_EQ(5, FPDFText_GetSchCount(search)); |
+ |
+ // Found position unchanged when fails to retreat. |
+ EXPECT_FALSE(FPDFText_FindPrev(search)); |
+ EXPECT_EQ(7, FPDFText_GetSchResultIndex(search)); |
+ EXPECT_EQ(5, FPDFText_GetSchCount(search)); |
+ FPDFText_FindClose(search); |
+ |
+ // Exact search unaffected by case sensitiity and whole word flags. |
+ search = FPDFText_FindStart( |
+ textpage, world, FPDF_MATCHCASE | FPDF_MATCHWHOLEWORD, 0); |
+ EXPECT_NE(nullptr, search); |
+ EXPECT_TRUE(FPDFText_FindNext(search)); |
+ EXPECT_EQ(7, FPDFText_GetSchResultIndex(search)); |
+ EXPECT_EQ(5, FPDFText_GetSchCount(search)); |
+ FPDFText_FindClose(search); |
+ |
+ // Default is case-insensitive, so matching agaist caps works. |
+ search = FPDFText_FindStart(textpage, world_caps, 0, 0); |
+ EXPECT_NE(nullptr, search); |
+ EXPECT_TRUE(FPDFText_FindNext(search)); |
+ EXPECT_EQ(7, FPDFText_GetSchResultIndex(search)); |
+ EXPECT_EQ(5, FPDFText_GetSchCount(search)); |
+ FPDFText_FindClose(search); |
+ |
+ // But can be made case sensitive, in which case this fails. |
+ search = FPDFText_FindStart(textpage, world_caps, FPDF_MATCHCASE, 0); |
+ EXPECT_FALSE(FPDFText_FindNext(search)); |
+ EXPECT_EQ(0, FPDFText_GetSchResultIndex(search)); |
+ EXPECT_EQ(0, FPDFText_GetSchCount(search)); |
+ FPDFText_FindClose(search); |
+ |
+ // Default is match anywhere within word, so matching substirng works. |
+ search = FPDFText_FindStart(textpage, world_substr, 0, 0); |
+ EXPECT_TRUE(FPDFText_FindNext(search)); |
+ EXPECT_EQ(8, FPDFText_GetSchResultIndex(search)); |
+ EXPECT_EQ(4, FPDFText_GetSchCount(search)); |
+ FPDFText_FindClose(search); |
+ |
+ // But can be made to mach word boundaries, in which case this fails. |
+ search = FPDFText_FindStart(textpage, world_substr, FPDF_MATCHWHOLEWORD, 0); |
+ EXPECT_FALSE(FPDFText_FindNext(search)); |
+ // TODO(tsepez): investigate strange index/count values in this state. |
+ FPDFText_FindClose(search); |
+ |
+ FPDFText_ClosePage(textpage); |
+ ClearFormFillEnvironment(form_handle); |
+} |
+ |
// Test that the page has characters despite a bad stream length. |
TEST_F(FPDFTextEmbeddertest, StreamLengthPastEndOfFile) { |
EXPECT_TRUE(OpenDocument("testing/resources/bug_57.pdf")); |
FPDF_FORMHANDLE form_handle = SetFormFillEnvironment(); |
FPDF_PAGE page = LoadPage(0, form_handle); |
EXPECT_NE(nullptr, page); |
+ |
FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
EXPECT_NE(nullptr, textpage); |
EXPECT_EQ(13, FPDFText_CountChars(textpage)); |
+ |
+ FPDFText_ClosePage(textpage); |
+ ClearFormFillEnvironment(form_handle); |
+} |
+ |
+TEST_F(FPDFTextEmbeddertest, WebLinks) { |
+ EXPECT_TRUE(OpenDocument("testing/resources/weblinks.pdf")); |
+ FPDF_FORMHANDLE form_handle = SetFormFillEnvironment(); |
+ FPDF_PAGE page = LoadPage(0, form_handle); |
+ EXPECT_NE(nullptr, page); |
+ |
+ FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
+ EXPECT_NE(nullptr, textpage); |
+ |
+ FPDF_PAGELINK pagelink = FPDFLink_LoadWebLinks(textpage); |
+ EXPECT_NE(nullptr, pagelink); |
+ |
+ // Page contains two HTTP-style URLs. |
+ EXPECT_EQ(2, FPDFLink_CountWebLinks(pagelink)); |
+ |
+ // Only a terminating NUL required for bogus links. |
+ EXPECT_EQ(1, FPDFLink_GetURL(pagelink, 2, nullptr, 0)); |
+ EXPECT_EQ(1, FPDFLink_GetURL(pagelink, 1400, nullptr, 0)); |
+ EXPECT_EQ(1, FPDFLink_GetURL(pagelink, -1, nullptr, 0)); |
+ |
+ // Query the number of characters required for each link (incl NUL). |
+ EXPECT_EQ(25, FPDFLink_GetURL(pagelink, 0, nullptr, 0)); |
+ EXPECT_EQ(26, FPDFLink_GetURL(pagelink, 1, nullptr, 0)); |
+ |
+ const char expected_url[] = "http://example.com?q=foo"; |
+ unsigned short fixed_buffer[128]; |
+ |
+ // Retrieve a link with too small a buffer. Buffer will not be |
+ // NUL-terminated, but must not be modified past indicated length, |
+ // so pre-fill with a pattern to check write bounds. |
+ memset(fixed_buffer, 0xbd, sizeof(fixed_buffer)); |
+ EXPECT_EQ(1, FPDFLink_GetURL(pagelink, 0, fixed_buffer, 1)); |
+ EXPECT_TRUE(check_unsigned_shorts(expected_url, fixed_buffer, 1)); |
+ EXPECT_EQ(0xbdbd, fixed_buffer[1]); |
+ |
+ // Check buffer that doesn't have space for a terminating NUL. |
+ memset(fixed_buffer, 0xbd, sizeof(fixed_buffer)); |
+ EXPECT_EQ(sizeof(expected_url) - 1, FPDFLink_GetURL( |
+ pagelink, 0, fixed_buffer, sizeof(expected_url) - 1)); |
+ EXPECT_TRUE(check_unsigned_shorts( |
+ expected_url, fixed_buffer, sizeof(expected_url) - 1)); |
+ EXPECT_EQ(0xbdbd, fixed_buffer[sizeof(expected_url) - 1]); |
+ |
+ // Retreive link with exactly-sized buffer. |
+ memset(fixed_buffer, 0xbd, sizeof(fixed_buffer)); |
+ EXPECT_EQ(sizeof(expected_url), FPDFLink_GetURL( |
+ pagelink, 0, fixed_buffer, sizeof(expected_url))); |
+ EXPECT_TRUE(check_unsigned_shorts( |
+ expected_url, fixed_buffer, sizeof(expected_url))); |
+ EXPECT_EQ(0u, fixed_buffer[sizeof(expected_url) - 1]); |
+ EXPECT_EQ(0xbdbd, fixed_buffer[sizeof(expected_url)]); |
+ |
+ // Retreive link with ample-sized-buffer. |
+ memset(fixed_buffer, 0xbd, sizeof(fixed_buffer)); |
+ EXPECT_EQ(sizeof(expected_url), FPDFLink_GetURL( |
+ pagelink, 0, fixed_buffer, 128)); |
+ EXPECT_TRUE(check_unsigned_shorts( |
+ expected_url, fixed_buffer, sizeof(expected_url))); |
+ EXPECT_EQ(0u, fixed_buffer[sizeof(expected_url) - 1]); |
+ EXPECT_EQ(0xbdbd, fixed_buffer[sizeof(expected_url)]); |
+ |
+ // Each link rendered in a single rect in this test page. |
+ EXPECT_EQ(1, FPDFLink_CountRects(pagelink, 0)); |
+ EXPECT_EQ(1, FPDFLink_CountRects(pagelink, 1)); |
+ |
+ // Each link rendered in a single rect in this test page. |
+ EXPECT_EQ(0, FPDFLink_CountRects(pagelink, -1)); |
+ EXPECT_EQ(0, FPDFLink_CountRects(pagelink, 2)); |
+ EXPECT_EQ(0, FPDFLink_CountRects(pagelink, 10000)); |
+ |
+ // Check boundary of valid link index with valid rect index. |
+ double left = 0.0; |
+ double right = 0.0; |
+ double top = 0.0; |
+ double bottom = 0.0; |
+ FPDFLink_GetRect(pagelink, 0, 0, &left, &top, &right, &bottom); |
+ EXPECT_NEAR(50.791, left, 0.001); |
+ EXPECT_NEAR(187.963, right, 0.001); |
+ EXPECT_NEAR(97.624, bottom, 0.001); |
+ EXPECT_NEAR(108.736, top, 0.001); |
+ |
+ // Check that valid link with invalid rect index leaves parameters unchanged. |
+ left = -1.0; |
+ right = -1.0; |
+ top = -1.0; |
+ bottom = -1.0; |
+ FPDFLink_GetRect(pagelink, 0, 1, &left, &top, &right, &bottom); |
+ EXPECT_EQ(-1.0, left); |
+ EXPECT_EQ(-1.0, right); |
+ EXPECT_EQ(-1.0, bottom); |
+ EXPECT_EQ(-1.0, top); |
+ |
+ // Check that invalid link index leaves parameters unchanged. |
+ left = -2.0; |
+ right = -2.0; |
+ top = -2.0; |
+ bottom = -2.0; |
+ FPDFLink_GetRect(pagelink, -1, 0, &left, &top, &right, &bottom); |
+ EXPECT_EQ(-2.0, left); |
+ EXPECT_EQ(-2.0, right); |
+ EXPECT_EQ(-2.0, bottom); |
+ EXPECT_EQ(-2.0, top); |
+ |
+ FPDFLink_CloseWebLinks(pagelink); |
+ FPDFText_ClosePage(textpage); |
ClearFormFillEnvironment(form_handle); |
} |