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-rw-r--r--t/helper/test-line-buffer.c91
1 files changed, 91 insertions, 0 deletions
diff --git a/t/helper/test-line-buffer.c b/t/helper/test-line-buffer.c
new file mode 100644
index 0000000000..1e58f0476f
--- /dev/null
+++ b/t/helper/test-line-buffer.c
@@ -0,0 +1,91 @@
+/*
+ * test-line-buffer.c: code to exercise the svn importer's input helper
+ */
+
+#include "git-compat-util.h"
+#include "strbuf.h"
+#include "vcs-svn/line_buffer.h"
+
+static uint32_t strtouint32(const char *s)
+{
+ char *end;
+ uintmax_t n = strtoumax(s, &end, 10);
+ if (*s == '\0' || *end != '\0')
+ die("invalid count: %s", s);
+ return (uint32_t) n;
+}
+
+static void handle_command(const char *command, const char *arg, struct line_buffer *buf)
+{
+ switch (*command) {
+ case 'b':
+ if (starts_with(command, "binary ")) {
+ struct strbuf sb = STRBUF_INIT;
+ strbuf_addch(&sb, '>');
+ buffer_read_binary(buf, &sb, strtouint32(arg));
+ fwrite(sb.buf, 1, sb.len, stdout);
+ strbuf_release(&sb);
+ return;
+ }
+ case 'c':
+ if (starts_with(command, "copy ")) {
+ buffer_copy_bytes(buf, strtouint32(arg));
+ return;
+ }
+ case 's':
+ if (starts_with(command, "skip ")) {
+ buffer_skip_bytes(buf, strtouint32(arg));
+ return;
+ }
+ default:
+ die("unrecognized command: %s", command);
+ }
+}
+
+static void handle_line(const char *line, struct line_buffer *stdin_buf)
+{
+ const char *arg = strchr(line, ' ');
+ if (!arg)
+ die("no argument in line: %s", line);
+ handle_command(line, arg + 1, stdin_buf);
+}
+
+int main(int argc, char *argv[])
+{
+ struct line_buffer stdin_buf = LINE_BUFFER_INIT;
+ struct line_buffer file_buf = LINE_BUFFER_INIT;
+ struct line_buffer *input = &stdin_buf;
+ const char *filename;
+ char *s;
+
+ if (argc == 1)
+ filename = NULL;
+ else if (argc == 2)
+ filename = argv[1];
+ else
+ usage("test-line-buffer [file | &fd] < script");
+
+ if (buffer_init(&stdin_buf, NULL))
+ die_errno("open error");
+ if (filename) {
+ if (*filename == '&') {
+ if (buffer_fdinit(&file_buf, strtouint32(filename + 1)))
+ die_errno("error opening fd %s", filename + 1);
+ } else {
+ if (buffer_init(&file_buf, filename))
+ die_errno("error opening %s", filename);
+ }
+ input = &file_buf;
+ }
+
+ while ((s = buffer_read_line(&stdin_buf)))
+ handle_line(s, input);
+
+ if (filename && buffer_deinit(&file_buf))
+ die("error reading from %s", filename);
+ if (buffer_deinit(&stdin_buf))
+ die("input error");
+ if (ferror(stdout))
+ die("output error");
+ return 0;
+}