Impement first testcase

tests/blabla.odin

@@ -1,8 +1,25 @@
 package tests
 
+import "core:os"
 import "core:testing"
 
+import "src:file"
+
 @(test)
-foo :: proc(t: ^testing.T) {
-	testing.expect(t, 1 + 1 == 2, "pass")
+single_tiny_file :: proc(t: ^testing.T) {
+	// Arrange
+
+	create_file(t, "single_tiny_file", "hello world!")
+
+	// Act
+
+	wd, err := os.get_working_directory(context.allocator)
+	entries, err2 := file.list_dir_recursive_by_path(TEST_DIR, wd)
+	pack(t, 750)
+	delete_path(t, "")
+	read := read(t, "single_tiny_file")
+
+	// Assert
+
+	testing.expect_value(t, read, "hello world!")
 }

tests/helpers.odin

@@ -0,0 +1,104 @@
+package tests
+
+import "core:os"
+import "core:testing"
+
+import "src:chunks"
+import "src:file"
+
+TEST_DIR :: "./build/tests"
+TEST_OUTPUT_DIR :: "./build/out"
+
+// -----------------------------------------
+
+create_file :: proc(
+	t: ^testing.T,
+	path: string,
+	content: string,
+	allocator := context.allocator,
+) {
+	relpath, err := os.join_path({TEST_DIR, path}, allocator)
+	testing.expect(t, err == nil, os.error_string(err))
+	defer delete(relpath, allocator)
+
+	dir := os.dir(relpath)
+	if !os.exists(dir) {
+		err2 := os.make_directory_all(dir)
+		testing.expect(t, err2 == nil, os.error_string(err2))
+	}
+
+	file, err3 := os.create(relpath)
+	testing.expect(t, err3 == nil, os.error_string(err3))
+	defer os.close(file)
+
+	_, err4 := os.write(file, transmute([]u8)content)
+	testing.expect(t, err4 == nil, os.error_string(err4))
+}
+
+delete_path :: proc(
+	t: ^testing.T,
+	path: string,
+	allocator := context.allocator,
+) {
+	relpath, err := os.join_path({TEST_DIR, path}, allocator)
+	defer delete(relpath, allocator)
+	testing.expect(t, err == nil, os.error_string(err))
+
+	err2 := os.remove_all(relpath)
+	testing.expect(t, err2 == nil, os.error_string(err2))
+}
+
+pack :: proc(t: ^testing.T, size: u64) {
+	wd, err := os.get_working_directory(context.allocator)
+	testing.expect(t, err == nil, os.error_string(err))
+	entries, err2 := file.list_dir_recursive_by_path(TEST_DIR, wd)
+	testing.expect(t, err2 == nil, file.format_error(err2))
+
+	w := chunks.writer_init(cast(u64)len(entries))
+	defer chunks.writer_destroy(&w)
+
+	if os.exists(TEST_OUTPUT_DIR) {
+		err3 := os.remove_all(TEST_OUTPUT_DIR)
+		testing.expect(t, err3 == nil, os.error_string(err3))
+	}
+
+	err4 := os.make_directory_all(TEST_OUTPUT_DIR) // fails if dir exists
+	testing.expect(t, err4 == nil, os.error_string(err4))
+
+	output_file, err5 := os.open(TEST_OUTPUT_DIR, {.Read})
+	testing.expect(t, err5 == nil, os.error_string(err5))
+	defer os.close(output_file)
+
+	err6 := chunks.write_assets(&w, output_file, entries[:], size, 0)
+	testing.expect(t, err6 == nil, chunks.format_error(err6))
+
+	err7 := chunks.write_metadata(&w, output_file, entries[:], size, 0)
+	testing.expect(t, err7 == nil, chunks.format_error(err7))
+}
+
+read :: proc(
+	t: ^testing.T,
+	path: string,
+	allocator := context.allocator,
+) -> string {
+	relpath, err := os.join_path({TEST_DIR, path}, allocator)
+	testing.expect(t, err == nil, os.error_string(err))
+	defer delete(relpath, allocator)
+
+	file, err2 := os.open(TEST_OUTPUT_DIR)
+	testing.expect(t, err2 == nil, os.error_string(err2))
+	defer os.close(file)
+
+	r, err3 := chunks.reader_init(file)
+	testing.expect(t, err3 == nil, chunks.format_error(err3))
+	defer chunks.reader_destroy(&r)
+
+	exists, i, err4 := chunks.file_exists(&r, relpath)
+	testing.expect(t, exists)
+	testing.expect(t, err4 == nil, chunks.format_error(err4))
+
+	bytes, err5 := chunks.read_file(&r, relpath)
+	testing.expect(t, err5 == nil, chunks.format_error(err5))
+
+	return string(bytes)
+}