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require "minitest_helper"
class TestPaxHeader < Minitest::Test
def test_from_stream_with_size_attribute
pax_content = "19 size=8614356715\n28 mtime=1749098832.3200000\n"
pax_header = create_pax_header_from_stream(pax_content)
assert_equal 8614356715, pax_header.size
assert_equal "1749098832.3200000", pax_header.attributes["mtime"]
end
def test_from_stream_without_size_attribute
pax_content = "28 mtime=1749098832.3200000\n27 path=some/long/path.txt\n"
pax_header = create_pax_header_from_stream(pax_content)
assert_nil pax_header.size
assert_equal "some/long/path.txt", pax_header.path
assert_equal 1749098832.32, pax_header.mtime
end
def test_parse_multiline_values
pax_content = "22 foo=one\ntwo\nthree\n\n12 bar=four\n"
pax_header = Minitar::PaxHeader.from_data(pax_content)
assert_equal "one\ntwo\nthree\n", pax_header.attributes["foo"]
assert_equal "four", pax_header.attributes["bar"]
end
def test_from_stream_with_invalid_header
header_data = build_tar_file_header("regular_file.txt", "", 0o644, 100)
io = StringIO.new(header_data)
posix_header = Minitar::PosixHeader.from_stream(io)
refute posix_header.pax_header?
assert_raises(ArgumentError, "Header must be a PAX header") do
Minitar::PaxHeader.from_stream(io, posix_header)
end
end
def test_parse_content_with_multiple_attributes
pax_content = "19 size=8614356715\n28 mtime=1749098832.3200000\n27 path=some/long/path.txt\n"
pax_header = Minitar::PaxHeader.from_data(pax_content)
assert_equal 8614356715, pax_header.size
assert_equal "some/long/path.txt", pax_header.path
assert_equal 1749098832.32, pax_header.mtime
# Check raw attributes
assert_equal "8614356715", pax_header.attributes["size"]
assert_equal "1749098832.3200000", pax_header.attributes["mtime"]
assert_equal "some/long/path.txt", pax_header.attributes["path"]
end
def test_parse_content_with_invalid_length_format
assert_raises(ArgumentError) do
Minitar::PaxHeader.from_data("19 size=8614356715\ninvalid line\n23 path=valid/path.txt\n")
end
end
def test_parse_content_with_oversized_record
assert_raises(ArgumentError) do
Minitar::PaxHeader.from_data("19 size=8614356715\n999 toolong=value\n")
end
end
def test_from_stream_strips_padding
pax_content = "19 size=8614356715\n"
pax_header = create_pax_header_from_stream(pax_content)
# Should parse only the actual content, ignoring padding
assert_equal 8614356715, pax_header.size
assert_equal 1, pax_header.attributes.size # Only one attribute parsed
# Should have parsed content correctly
assert_equal 1, pax_header.attributes.size
assert_equal "8614356715", pax_header.attributes["size"]
end
def test_attributes_accessor
pax_content = "19 size=8614356715\n23 custom=custom_value\n"
pax_header = Minitar::PaxHeader.from_data(pax_content)
assert_equal "8614356715", pax_header.attributes["size"]
assert_equal "custom_value", pax_header.attributes["custom"]
assert_nil pax_header.attributes["nonexistent"]
end
def test_pax_header_to_s
pax_header = Minitar::PaxHeader.new(size: "8614356715", mtime: "1749098832.3200000")
assert_equal "19 size=8614356715\n28 mtime=1749098832.3200000\n", pax_header.to_s
end
private
def create_pax_header_from_stream(pax_content, name = "./PaxHeaders.X/test_file")
pax_header_data = build_tar_pax_header(name, "", pax_content.bytesize)
padded_content = pax_content.ljust((pax_content.bytesize / 512.0).ceil * 512, "\0")
io = StringIO.new(pax_header_data + padded_content)
posix_header = Minitar::PosixHeader.from_stream(io)
Minitar::PaxHeader.from_stream(io, posix_header)
end
end
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