svg-color-test.h: New unit test file.

diff --git a/src/svg/Makefile_insert b/src/svg/Makefile_insert
index c3219d70524549bfdfea42879276310f05ccfaf3..ee3ee25188678edf4d521e76568a56786ab67fae 100644 (file)
--- a/src/svg/Makefile_insert
+++ b/src/svg/Makefile_insert
@@ -43,7 +43,8 @@ svg/test-svg.cpp: $(svg_test_svg_includes) svg/Makefile_insert
 
 svg_test_svg_includes = \
        $(srcdir)/svg/css-ostringstream-test.h  \
-       $(srcdir)/svg/stringstream-test.h
+       $(srcdir)/svg/stringstream-test.h       \
+       $(srcdir)/svg/svg-color-test.h
 
 svg_libtest_svg_a_SOURCES = \
        svg/test-svg.cpp        \
@@ -56,4 +57,5 @@ svg_test_svg_SOURCES = \
 svg_test_svg_LDADD = \
        svg/libspsvg.a  \
        svg/libtest-svg.a       \
+       libinkpost.a    \
        -lglib-2.0

diff --git a/src/svg/svg-color-test.h b/src/svg/svg-color-test.h
new file mode 100644 (file)
index 0000000..4d9b2e8
--- /dev/null
+++ b/src/svg/svg-color-test.h
@@ -0,0 +1,55 @@
+#include <cxxtest/TestSuite.h>
+#include "svg/svg-color.h"
+
+static void
+test_rgb24(unsigned const rgb24)
+{
+    char css[8];
+    sp_svg_write_color(css, sizeof(css), rgb24 << 8);
+    TS_ASSERT_EQUALS(sp_svg_read_color(css, 0xff),
+                     rgb24 << 8);
+}
+
+static void
+test_sp_svg_write_color()
+{
+    unsigned const components[] = {0, 0x80, 0xff, 0xc0, 0x77};
+    unsigned const nc = G_N_ELEMENTS(components);
+    for (unsigned i = nc*nc*nc; i--;) {
+        unsigned tmp = i;
+        unsigned rgb24 = 0;
+        for (unsigned c = 0; c < 3; ++c) {
+            unsigned const component = components[tmp % nc];
+            rgb24 = (rgb24 << 8) | component;
+            tmp /= nc;
+        }
+        assert(tmp == 0);
+        test_rgb24(rgb24);
+    }
+
+    /* And a few completely random ones. */
+    for (unsigned i = 500; i--;) {  /* Arbitrary number of iterations. */
+        unsigned const rgb24 = (rand() >> 4) & 0xffffff;
+        test_rgb24(rgb24);
+    }
+}
+
+class SVGColorTest : public CxxTest::TestSuite
+{
+public:
+    void testWrite()
+    {
+        test_sp_svg_write_color();
+    }
+};
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :