diff -r 000000000000 -r 70cc629ec1e0 test/harness/testcaseoutput.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/harness/testcaseoutput.c	Wed Oct 16 22:51:29 2013 +0100
@@ -0,0 +1,140 @@
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <glib.h>
+#include <bl/bl.h>
+#include "testcase.h"
+#include "testcaseoutput.h"
+
+/*
+ * Replace \r\n with \n, \n with U+240A (visible symbol for LF)
+ * and \r with U+240D (visible symbol for CR).
+ */
+static char *dos2unix(const char *text)
+{
+    gunichar c;
+    gboolean cr=FALSE;
+    const gunichar visible_lf=0x240A;
+    const gunichar visible_cr=0x240D;
+    GString *string;
+    string=g_string_new(NULL);
+    while(*text)
+    {
+	c=g_utf8_get_char(text);
+	text=g_utf8_next_char(text);
+	if (cr)
+	{
+	    cr=FALSE;
+	    if (c=='\n')
+	    {
+		g_string_append_c(string,'\n');
+		continue;
+	    }
+	    else
+		g_string_append_unichar(string,visible_cr);
+	}
+	if (c=='\r')
+	    cr=TRUE;
+	else if (c=='\n')
+	    g_string_append_unichar(string,visible_lf);
+	else
+	    g_string_append_unichar(string,c);
+    }
+    if (cr)
+	g_string_append_unichar(string,visible_cr);
+    return g_string_free(string,FALSE);
+}
+
+/*
+ * Read an output file needed for a testcase (as specified in <output>).
+ * The file is read in the encoding specified for communicating with
+ * bookloupe.
+ */
+gboolean testcase_output_read(Testcase *testcase,TestcaseOutput *output,
+  gchar **contents,gsize *length,GError **error)
+{
+    char *filename,*s,*t;
+    gboolean retval;
+    GError *tmp_err=NULL;
+    if (!strcmp(output->name,"stdout"))
+    {
+	*contents=g_strdup(testcase->test_output);
+	if (length)
+	    *length=strlen(testcase->test_output);
+    }
+    else
+    {
+	if (testcase->tmpdir)
+	    filename=g_build_filename(testcase->tmpdir,output->name,NULL);
+	else
+	    filename=g_strdup(output->name);
+	if (!g_file_get_contents(filename,&s,NULL,error))
+	{
+	    g_free(filename);
+	    return FALSE;
+	}
+	g_free(filename);
+	if (testcase->encoding)
+	{
+	    t=dos2unix(s);
+	    g_free(s);
+	    s=g_convert(t,-1,"UTF-8",testcase->encoding,NULL,length,&tmp_err);
+	    g_free(t);
+	    if (!s)
+	    {
+		g_propagate_prefixed_error(error,tmp_err,
+		  "Conversion from %s failed: ",testcase->encoding);
+		return FALSE;
+	    }
+	    *contents=s;
+	}
+	else
+	{
+	    *contents=dos2unix(s);
+	    if (length)
+		*length=strlen(*contents);
+	}
+    }
+    return TRUE;
+}
+
+/*
+ * Remove an output file created by program under test.
+ */
+gboolean testcase_output_remove(Testcase *testcase,TestcaseOutput *output,
+  GError **error)
+{
+    char *filename;
+    if (!strcmp(output->name,"stdout"))
+	return TRUE;
+    if (testcase->tmpdir)
+	filename=g_build_filename(testcase->tmpdir,output->name,NULL);
+    else
+	filename=g_strdup(output->name);
+    if (g_unlink(filename)<0)
+    {
+	g_set_error(error,G_FILE_ERROR,g_file_error_from_errno(errno),
+	  "%s: %s",filename,g_strerror(errno));
+	return FALSE;
+    }
+    g_free(filename);
+    return TRUE;
+}
+
+/* Create a new description of an output file expected by a testcase */
+TestcaseOutput *testcase_output_new(const char *name,const char *contents)
+{
+    TestcaseOutput *output;
+    output=g_new0(TestcaseOutput,1);
+    output->name=g_strdup(name);
+    output->contents=g_strdup(contents);
+    return output;
+}
+
+/* Free the description of a testcase output file */
+void testcase_output_free(TestcaseOutput *output)
+{
+    g_free(output->name);
+    g_free(output->contents);
+    g_free(output);
+}