[goffice] Tests: get started on a test for GOFormat.

[Morten Welinder <mortenw src gnome org>]

commit 7cd48bcbbeeb9ed5755007fbc00a0b5a67bed374
Author: Morten Welinder <terra gnome org>
Date:   Wed Apr 2 16:11:46 2014 -0400

    Tests: get started on a test for GOFormat.

 ChangeLog           |    2 ++
 tests/Makefile.am   |    6 +++++-
 tests/test-format.c |   49 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 56 insertions(+), 1 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 2fc6941..df81feb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2014-04-02  Morten Welinder  <terra gnome org>
 
+       * tests/test-format.c: New test program.
+
        * goffice/utils/go-format.c (go_format_output_conditional_to_odf):
        Use go_ascii_dtoa.
        (_go_number_format_init): Remove unused beyond_precision.
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 9433c51..56de845 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,5 +1,6 @@
+check_PROGRAMS=test-quad test-math test-format
 if WITH_GTK
-check_PROGRAMS = pie-demo go-demo shapes-demo mf-demo test-quad test-math
+check_PROGRAMS += pie-demo go-demo shapes-demo mf-demo
 endif
 
 include $(top_srcdir)/goffice.mk
@@ -26,5 +27,8 @@ test_quad_SOURCES = test-quad.c
 test_math_LDADD = $(GOFFICE_PLUGIN_LIBADD)
 test_math_SOURCES = test-math.c
 
+test_format_LDADD = $(GOFFICE_PLUGIN_LIBADD)
+test_format_SOURCES = test-format.c
+
 EXTRA_DIST = go-demo.ui
 
diff --git a/tests/test-format.c b/tests/test-format.c
new file mode 100644
index 0000000..0d34245
--- /dev/null
+++ b/tests/test-format.c
@@ -0,0 +1,49 @@
+#include <goffice/goffice.h>
+#include <string.h>
+
+/* ------------------------------------------------------------------------- */
+
+static void
+test_general_format_1 (double val, int width, const char *expected)
+{
+       GString *str = g_string_new (NULL);
+
+       go_render_general (NULL, str,
+                          go_format_measure_strlen,
+                          go_font_metrics_unit,
+                          val, width,
+                          FALSE, 0, 0);
+
+       g_printerr ("go_render_general: %.17g %d -> \"%s\"\n",
+                   val, width, str->str);
+
+       g_assert (strcmp (str->str, expected) == 0);
+
+       g_string_free (str, TRUE);
+}
+
+static void
+test_general_format (void)
+{
+       test_general_format_1 (-9.5, 5, "-9.5");
+       test_general_format_1 (-9.5, 4, "-9.5");
+       test_general_format_1 (-9.5, 3, "-10");
+
+       test_general_format_1 (9.5, 5, "9.5");
+       test_general_format_1 (9.5, 3, "9.5");
+       test_general_format_1 (9.5, 2, "10");
+}
+
+/* ------------------------------------------------------------------------- */
+
+int
+main (int argc, char **argv)
+{
+       libgoffice_init ();
+
+       test_general_format ();
+
+       libgoffice_shutdown ();
+
+       return 0;
+}