Add a test for deflate and comment

Add a method for getting a comment

1 files changed, 18 insertions, 2 deletions

diff --git a/src/main.zig b/src/main.zig
index 20c939a..417f10b 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -111,6 +111,9 @@ const ZipFile = struct {
     fn file_name(self: ZipFile, index: u16) []const u8 {
         return self.central_directory_headers[index].file_name;
     }
+    fn file_comment(self: ZipFile, index: u16) []const u8 {
+        return self.central_directory_headers[index].file_comment;
+    }
     fn extract(self: ZipFile, index: u16, stream_or_file_in: anytype, stream_or_file_out: anytype) !void {
         const cdh = self.central_directory_headers[index];
         try stream_or_file_in.seekTo(cdh.relative_offset_of_local_header);
@@ -170,7 +173,7 @@ const CentralDirectoryHeader = struct {
     version_made_by: u16,
     version_needed_to_extract: u16,
     general_purpose_bit_flag: u16,
-    compression_method: u16,
+    compression_method: ZipFile.CompressionMethod,
     last_mod_file_time: u16,
     last_mod_file_date: u16,
     crc32: u32,
@@ -330,7 +333,7 @@ test "foo2" {
     try std.testing.expectEqualStrings(zf.file_name(1), "foo.txt");
 }
 
-test "extract" {
+test "extract stored" {
     const test_zip = @embedFile("hello.zip");
     var fbs = std.io.fixedBufferStream(test_zip);
     var zf = try ZipFile.from(std.testing.allocator, &fbs);
@@ -343,3 +346,16 @@ test "extract" {
     try zf.extract(1, &fbs, &fbs_out);
     try std.testing.expectEqualStrings("hi there\n", fbs_out.getWritten());
 }
+
+test "extract deflate" {
+    const test_zip = @embedFile("deflate.zip");
+    var fbs = std.io.fixedBufferStream(test_zip);
+    var zf = try ZipFile.from(std.testing.allocator, &fbs);
+    defer zf.deinit();
+    var out = [_]u8{0} ** 1024;
+    var fbs_out = std.io.fixedBufferStream(&out);
+    try std.testing.expectEqualStrings("Here is a comment :)", zf.file_comment(0));
+    try std.testing.expectEqual(ZipFile.CompressionMethod.deflate, zf.central_directory_headers[0].compression_method);
+    try zf.extract(0, &fbs, &fbs_out);
+    try std.testing.expectEqualStrings(@embedFile("foo.txt"), fbs_out.getWritten());
+}