Add tests for file IO API

tests/file/test_file.c

@@ -0,0 +1,98 @@
+// vim:fileencoding=utf-8:foldmethod=marker
+
+#include "test_file.h"
+
+#define DST_CAPACITY 5
+wapp_intern Str8RO test_filename      = wapp_str8_lit_ro_initialiser_list("wapptest.bin");
+wapp_intern WFile *test_fp            = NULL;
+wapp_intern I32Array src_array1       = wapp_array(i32,  0,  1,  2,  3,  4);
+wapp_intern I32Array src_array2       = wapp_array(i32,  5,  6,  7,  8,  9);
+wapp_intern I32Array src_array3       = wapp_array(i32, 10, 11, 12, 13, 14);
+wapp_intern I32Array dst_array        = wapp_array_with_capacity(i32, DST_CAPACITY, false);
+wapp_intern i32 dst_buf[DST_CAPACITY] = {0};
+
+TestFuncResult test_wapp_file_open(void) {
+	test_fp = wapp_file_open(&test_filename, WAPP_FA_MODE_WB_EX);
+	return wapp_tester_result(test_fp != NULL);
+}
+
+TestFuncResult test_wapp_file_get_current_position(void) {
+	u64 pos = wapp_file_get_current_position(test_fp);
+	return wapp_tester_result(pos == 0);
+}
+
+TestFuncResult test_wapp_file_seek(void) {
+	wapp_file_write_array((GenericArray)src_array1, test_fp, wapp_array_count(src_array1));
+
+	i32 seek_result = wapp_file_seek(test_fp, 0, WAPP_SEEK_END);
+	b8 result       = seek_result == 0;
+
+	wapp_file_seek(test_fp, 0, WAPP_SEEK_START);
+
+	return wapp_tester_result(result);
+}
+
+TestFuncResult test_wapp_file_get_length(void) {
+	i64 length = wapp_file_get_length(test_fp);
+	return wapp_tester_result(length == (i64)(wapp_array_count(src_array1) * wapp_array_item_size(src_array1)));
+}
+
+TestFuncResult test_wapp_file_read(void) {
+	wapp_file_seek(test_fp, 0, WAPP_SEEK_START);
+
+	u64 byte_count = DST_CAPACITY * sizeof(i32);
+	u64 count      = wapp_file_read((void *)dst_buf, test_fp, byte_count);
+	b8 result      = count == byte_count;
+
+	for (u64 i = 0; i < DST_CAPACITY; ++i) {
+		result = result && (dst_buf[i] == *wapp_array_get(i32, src_array1, i));
+	}
+
+	return wapp_tester_result(result);
+}
+
+TestFuncResult test_wapp_file_write(void) {
+	wapp_file_seek(test_fp, 0, WAPP_SEEK_END);
+
+	u64 expected_count = wapp_array_count(src_array2) * wapp_array_item_size(src_array2);
+	u64 count = wapp_file_write((void *)src_array2, test_fp, expected_count);
+
+	return wapp_tester_result(count == expected_count);
+}
+
+TestFuncResult test_wapp_file_read_array(void) {
+	wapp_file_seek(test_fp, 0, WAPP_SEEK_START);
+
+	u64 count = wapp_file_read_array((GenericArray)dst_array, test_fp, wapp_array_count(src_array1));
+	b8 result = count == wapp_array_count(src_array1) &&
+	            wapp_array_count(dst_array) == wapp_array_count(src_array1);
+
+	for (u64 i = 0; i < wapp_array_count(dst_array); ++i) {
+		result = result && (*wapp_array_get(i32, dst_array, i) == *wapp_array_get(i32, src_array1, i));
+	}
+
+	return wapp_tester_result(result);
+}
+
+TestFuncResult test_wapp_file_write_array(void) {
+	wapp_file_seek(test_fp, 0, WAPP_SEEK_END);
+
+	u64 count = wapp_file_write_array((GenericArray)src_array3, test_fp, wapp_array_count(src_array3));
+
+	return wapp_tester_result(count == wapp_array_count(src_array3));
+}
+
+TestFuncResult test_wapp_file_flush(void) {
+	i32 flush_result = wapp_file_flush(test_fp);
+	return wapp_tester_result(flush_result == 0);
+}
+
+TestFuncResult test_wapp_file_close(void) {
+	i32 close_result = wapp_file_close(test_fp);
+	return wapp_tester_result(close_result == 0);
+}
+
+TestFuncResult test_wapp_file_remove(void) {
+	i32 remove_result = wapp_file_remove(&test_filename);
+	return wapp_tester_result(remove_result == 0);
+}