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ea9ded8758
* add xz to std.compress * prefer importing std.zig by file name, to reduce reliance on the standard library being a special case. * extract some types from inside generic functions. These types are the same regardless of the generic parameters. * expose some more types in the std.compress.xz namespace. * rename xz.stream to xz.decompress * rename check.Kind to Check * use std.leb for LEB instead of a redundant implementation
81 lines
2.5 KiB
Zig
81 lines
2.5 KiB
Zig
const std = @import("../../std.zig");
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const testing = std.testing;
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const xz = std.compress.xz;
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fn decompress(data: []const u8) ![]u8 {
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var in_stream = std.io.fixedBufferStream(data);
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var xz_stream = try xz.decompress(testing.allocator, in_stream.reader());
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defer xz_stream.deinit();
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return xz_stream.reader().readAllAlloc(testing.allocator, std.math.maxInt(usize));
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}
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fn testReader(data: []const u8, comptime expected: []const u8) !void {
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const buf = try decompress(data);
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defer testing.allocator.free(buf);
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try testing.expectEqualSlices(u8, expected, buf);
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}
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test "compressed data" {
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try testReader(@embedFile("testdata/good-0-empty.xz"), "");
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inline for ([_][]const u8{
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"good-1-check-none.xz",
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"good-1-check-crc32.xz",
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"good-1-check-crc64.xz",
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"good-1-check-sha256.xz",
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"good-2-lzma2.xz",
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"good-1-block_header-1.xz",
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"good-1-block_header-2.xz",
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"good-1-block_header-3.xz",
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}) |filename| {
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try testReader(@embedFile("testdata/" ++ filename),
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\\Hello
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\\World!
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\\
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);
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}
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inline for ([_][]const u8{
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"good-1-lzma2-1.xz",
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"good-1-lzma2-2.xz",
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"good-1-lzma2-3.xz",
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"good-1-lzma2-4.xz",
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}) |filename| {
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try testReader(@embedFile("testdata/" ++ filename),
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\\Lorem ipsum dolor sit amet, consectetur adipisicing
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\\elit, sed do eiusmod tempor incididunt ut
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\\labore et dolore magna aliqua. Ut enim
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\\ad minim veniam, quis nostrud exercitation ullamco
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\\laboris nisi ut aliquip ex ea commodo
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\\consequat. Duis aute irure dolor in reprehenderit
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\\in voluptate velit esse cillum dolore eu
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\\fugiat nulla pariatur. Excepteur sint occaecat cupidatat
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\\non proident, sunt in culpa qui officia
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\\deserunt mollit anim id est laborum.
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\\
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);
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}
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try testReader(@embedFile("testdata/good-1-lzma2-5.xz"), "");
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}
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test "unsupported" {
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inline for ([_][]const u8{
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"good-1-delta-lzma2.tiff.xz",
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"good-1-x86-lzma2.xz",
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"good-1-sparc-lzma2.xz",
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"good-1-arm64-lzma2-1.xz",
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"good-1-arm64-lzma2-2.xz",
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"good-1-3delta-lzma2.xz",
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"good-1-empty-bcj-lzma2.xz",
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}) |filename| {
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try testing.expectError(
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error.Unsupported,
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decompress(@embedFile("testdata/" ++ filename)),
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);
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}
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}
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