1 files changed, 93 insertions, 0 deletions
diff --git a/libavutil/tests/bprint.c b/libavutil/tests/bprint.c
new file mode 100644
index 0000000000..d7f381dd52
--- /dev/null
+++ b/libavutil/tests/bprint.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2012 Nicolas George
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/bprint.c"
+
+#undef printf
+
+static void bprint_pascal(AVBPrint *b, unsigned size)
+{
+    unsigned i, j;
+    unsigned p[42];
+
+    av_assert0(size < FF_ARRAY_ELEMS(p));
+
+    p[0] = 1;
+    av_bprintf(b, "%8d\n", 1);
+    for (i = 1; i <= size; i++) {
+        p[i] = 1;
+        for (j = i - 1; j > 0; j--)
+            p[j] = p[j] + p[j - 1];
+        for (j = 0; j <= i; j++)
+            av_bprintf(b, "%8d", p[j]);
+        av_bprintf(b, "\n");
+    }
+}
+
+int main(void)
+{
+    AVBPrint b;
+    char buf[256];
+    struct tm testtime = { .tm_year = 100, .tm_mon = 11, .tm_mday = 20 };
+
+    av_bprint_init(&b, 0, -1);
+    bprint_pascal(&b, 5);
+    printf("Short text in unlimited buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
+    printf("%s\n", b.str);
+    av_bprint_finalize(&b, NULL);
+
+    av_bprint_init(&b, 0, -1);
+    bprint_pascal(&b, 25);
+    printf("Long text in unlimited buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
+    av_bprint_finalize(&b, NULL);
+
+    av_bprint_init(&b, 0, 2048);
+    bprint_pascal(&b, 25);
+    printf("Long text in limited buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
+    av_bprint_finalize(&b, NULL);
+
+    av_bprint_init(&b, 0, 1);
+    bprint_pascal(&b, 5);
+    printf("Short text in automatic buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
+
+    av_bprint_init(&b, 0, 1);
+    bprint_pascal(&b, 25);
+    printf("Long text in automatic buffer: %u/%u\n", (unsigned)strlen(b.str)/8*8, b.len);
+    /* Note that the size of the automatic buffer is arch-dependent. */
+
+    av_bprint_init(&b, 0, 0);
+    bprint_pascal(&b, 25);
+    printf("Long text count only buffer: %u/%u\n", (unsigned)strlen(b.str), b.len);
+
+    av_bprint_init_for_buffer(&b, buf, sizeof(buf));
+    bprint_pascal(&b, 25);
+    printf("Long text count only buffer: %u/%u\n", (unsigned)strlen(buf), b.len);
+
+    av_bprint_init(&b, 0, -1);
+    av_bprint_strftime(&b, "%Y-%m-%d", &testtime);
+    printf("strftime full: %u/%u \"%s\"\n", (unsigned)strlen(buf), b.len, b.str);
+    av_bprint_finalize(&b, NULL);
+
+    av_bprint_init(&b, 0, 8);
+    av_bprint_strftime(&b, "%Y-%m-%d", &testtime);
+    printf("strftime truncated: %u/%u \"%s\"\n", (unsigned)strlen(buf), b.len, b.str);
+
+    return 0;
+}