loader: added tests

1 files changed, 50 insertions, 0 deletions

diff --git a/src/file.c b/src/file.c
new file mode 100644
index 0000000..7648340
--- /dev/null
+++ b/src/file.c
@@ -0,0 +1,50 @@
+/*
+ * blogc: A blog compiler.
+ * Copyright (C) 2015 Rafael G. Martins <rafael@rafaelmartins.eng.br>
+ *
+ * This program can be distributed under the terms of the BSD License.
+ * See the file COPYING.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif /* HAVE_CONFIG_H */
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include "utils/utils.h"
+#include "file.h"
+#include "error.h"
+
+// this would belong to loader.c, but we need it in a separated file to be
+// able to mock it when unit testing the loader functions.
+
+
+char*
+blogc_file_get_contents(const char *path, size_t *len, blogc_error_t **err)
+{
+    if (path == NULL || err == NULL || *err != NULL)
+        return NULL;
+
+    *len = 0;
+    FILE *fp = fopen(path, "r");
+
+    if (fp == NULL) {
+        int tmp_errno = errno;
+        *err = blogc_error_new_printf(BLOGC_ERROR_LOADER,
+            "Failed to open file (%s): %s", path, strerror(tmp_errno));
+        return NULL;
+    }
+
+    b_string_t *str = b_string_new();
+    char buffer[BLOGC_FILE_CHUNK_SIZE];
+
+    while (!feof(fp)) {
+        size_t read_len = fread(buffer, sizeof(char), BLOGC_FILE_CHUNK_SIZE, fp);
+        *len += read_len;
+        b_string_append_len(str, buffer, read_len);
+    }
+    fclose(fp);
+    return b_string_free(str, false);
+}