From 6fade93571c4c25f661e0984ecda780318324152 Mon Sep 17 00:00:00 2001
From: git <git@example.com>
Date: Mon, 2 Feb 2026 03:23:01 +0000
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为重命名后的 writeToAllFile 函数创建完整的单元测试用例。

测试覆盖场景：
- 空数据和空文本
- 只有数据，没有文本
- 只有文本，没有数据
- 两者都有数据
- 无效文件描述符的错误处理
---
 src/backend/Assembly_test.zig | 62 +++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 src/backend/Assembly_test.zig

diff --git a/src/backend/Assembly_test.zig b/src/backend/Assembly_test.zig
new file mode 100644
index 0000000..4457e14
--- /dev/null
+++ b/src/backend/Assembly_test.zig
@@ -0,0 +1,62 @@
+const std = @import("std");
+const Assembly = @import("Assembly.zig").Assembly;
+
+test "writeToAllFile - empty data and empty text" {
+    const assembly = Assembly{
+        .data = &.{},
+        .text = &.{},
+    };
+    var buffer: [1024]u8 = undefined;
+    var fbs = std.io.FixedBufferStream(&buffer);
+    const file = try std.fs.File.openWriter(fbs.writer());
+    try assembly.writeToAllFile(file);
+    try std.testing.expectEqualStrings("", fbs.getWritten());
+}
+
+test "writeToAllFile - only data, no text" {
+    const assembly = Assembly{
+        .data = "hello data",
+        .text = &.{};
+    };
+    var buffer: [1024]u8 = undefined;
+    var fbs = std.io.FixedBufferStream(&buffer);
+    const file = try std.fs.File.openWriter(fbs.writer());
+    try assembly.writeToAllFile(file);
+    try std.testing.expectEqualStrings("hello data", fbs.getWritten());
+}
+
+test "writeToAllFile - only text, no data" {
+    const assembly = Assembly{
+        .data = &.{},
+        .text = "hello text",
+    };
+    var buffer: [1024]u8 = undefined;
+    var fbs = std.io.FixedBufferStream(&buffer);
+    const file = try std.fs.File.openWriter(fbs.writer());
+    try assembly.writeToAllFile(file);
+    try std.testing.expectEqualStrings("hello text", fbs.getWritten());
+}
+
+test "writeToAllFile - both data and text" {
+    const assembly = Assembly{
+        .data = "data content",
+        .text = " text content",
+    };
+    var buffer: [1024]u8 = undefined;
+    var fbs = std.io.FixedBufferStream(&buffer);
+    const file = try std.fs.File.openWriter(fbs.writer());
+    try assembly.writeToAllFile(file);
+    try std.testing.expectEqualStrings("data content text content", fbs.getWritten());
+}
+
+test "writeToAllFile - invalid file descriptor" {
+    const assembly = Assembly{
+        .data = "test data",
+        .text = "test text",
+    };
+    const invalid_file = std.fs.File{
+        .handle = -1,
+        .mode = .read_write,
+    };
+    try std.testing.expectError(error.InputOutput, assembly.writeToAllFile(invalid_file));
+}
-- 
Gitee