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Add tests for PDF metadata

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Extend the "pdf-tagged-text" test so that it does some basic checks
on the PDF file it creates. This covers the date fields as well as
some other metadata. More checks can and should be added.
This commit is contained in:
Sven Neumann 2021-01-04 12:45:38 +01:00
parent cb3618f76d
commit 4e02f705e4
1 changed files with 79 additions and 1 deletions
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80
test/pdf-tagged-text.c
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@ -29,6 +29,17 @@
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/stat.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_MMAP
#include <sys/mman.h>
#endif
#include <cairo.h>
#include <cairo-pdf.h>
@ -364,12 +375,77 @@ create_document (cairo_surface_t *surface, cairo_t *cr)
cairo_tag_end (cr, "Document");
}
static cairo_test_status_t
check_contains_string(cairo_test_context_t *ctx, const void *hay, size_t size, const char *needle)
{
if (memmem(hay, size, needle, strlen(needle)))
return CAIRO_TEST_SUCCESS;
cairo_test_log (ctx, "Failed to find expected string in generated PDF: %s\n", needle);
return CAIRO_TEST_FAILURE;
}
static cairo_test_status_t
check_created_pdf(cairo_test_context_t *ctx, const char* filename)
{
cairo_test_status_t result = CAIRO_TEST_SUCCESS;
int fd;
struct stat st;
void *contents;
fd = open(filename, O_RDONLY, 0);
if (fd < 0) {
cairo_test_log (ctx, "Failed to open generated PDF file %s: %s\n", filename, strerror(errno));
return CAIRO_TEST_FAILURE;
}
if (fstat(fd, &st) == -1)
{
cairo_test_log (ctx, "Failed to stat generated PDF file %s: %s\n", filename, strerror(errno));
close(fd);
return CAIRO_TEST_FAILURE;
}
if (st.st_size == 0)
{
cairo_test_log (ctx, "Generated PDF file %s is empty\n", filename);
close(fd);
return CAIRO_TEST_FAILURE;
}
#ifdef HAVE_MMAP
contents = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
if (contents == NULL)
{
cairo_test_log (ctx, "Failed to mmap generated PDF file %s: %s\n", filename, strerror(errno));
close(fd);
return CAIRO_TEST_FAILURE;
}
/* check metadata */
result |= check_contains_string(ctx, contents, st.st_size, "/Title (PDF Features Test)");
result |= check_contains_string(ctx, contents, st.st_size, "/Author (cairo test suite)");
result |= check_contains_string(ctx, contents, st.st_size, "/Creator (pdf-features)");
result |= check_contains_string(ctx, contents, st.st_size, "/CreationDate (20160101123456+10'30')");
result |= check_contains_string(ctx, contents, st.st_size, "/ModDate (20160621054321Z)");
// TODO: add more checks
munmap(contents, st.st_size);
#endif
close(fd);
return result;
}
static cairo_test_status_t
preamble (cairo_test_context_t *ctx)
{
cairo_surface_t *surface;
cairo_t *cr;
cairo_status_t status, status2;
cairo_test_status_t result;
char *filename;
const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : ".";
@ -396,9 +472,11 @@ preamble (cairo_test_context_t *ctx)
return CAIRO_TEST_FAILURE;
}
result = check_created_pdf(ctx, filename);
free (filename);
return CAIRO_TEST_SUCCESS;
return result;
}
CAIRO_TEST (pdf_tagged_text,