mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-28 09:08:07 +00:00
212 lines
7.2 KiB
Python
212 lines
7.2 KiB
Python
from common import *
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from trezor.utils import ensure
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from apps.common.paths import *
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# NOTE: moved into tests not to occupy flash space
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# in firmware binary, when it is not used in production
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class NeverMatchingSchema:
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@staticmethod
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def match(path: "Bip32Path") -> bool:
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return False
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class TestPaths(unittest.TestCase):
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def test_is_hardened(self):
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self.assertTrue(is_hardened(H_(44)))
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self.assertTrue(is_hardened(H_(0)))
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self.assertTrue(is_hardened(H_(99999)))
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self.assertFalse(is_hardened(44))
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self.assertFalse(is_hardened(0))
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self.assertFalse(is_hardened(99999))
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def test_path_is_hardened(self):
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self.assertTrue(path_is_hardened([H_(44), H_(1), H_(0)]))
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self.assertTrue(path_is_hardened([H_(0)]))
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self.assertFalse(path_is_hardened([44, H_(44), H_(0)]))
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self.assertFalse(path_is_hardened([0]))
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self.assertFalse(path_is_hardened([H_(44), H_(1), H_(0), H_(0), 0]))
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class TestPathSchemas(unittest.TestCase):
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def assertMatch(self, schema, path):
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self.assertTrue(
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schema.match(path),
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f"Expected schema {repr(schema)} to match path {address_n_to_str(path)}",
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)
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def assertMismatch(self, schema, path):
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self.assertFalse(
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schema.match(path),
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f"Expected schema {repr(schema)} to not match path {address_n_to_str(path)}",
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)
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def assertEqualSchema(self, schema_a, schema_b):
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def is_equal(a, b):
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if isinstance(a, Interval) and isinstance(b, Interval):
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return a.min == b.min and a.max == b.max
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return set(a) == set(b)
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ensure(
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all(is_equal(a, b) for a, b in zip(schema_a.schema, schema_b.schema))
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and is_equal(schema_a.trailing_components, schema_b.trailing_components),
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f"Schemas differ:\nA = {repr(schema_a)}\nB = {repr(schema_b)}"
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)
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def test_always_never_matching(self):
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paths = [
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[],
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[0],
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[H_(0)],
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[44],
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[H_(44)],
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[H_(44), H_(0), H_(0), 0, 0],
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[H_(44), H_(0), H_(0), H_(0), H_(0)],
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[H_(44), H_(0), H_(0), H_(0), H_(0)] * 10,
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]
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for path in paths:
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self.assertMatch(AlwaysMatchingSchema, path)
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self.assertMismatch(NeverMatchingSchema, path)
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def test_pattern_fixed(self):
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pattern = "m/44'/0'/0'/0/0"
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schema = PathSchema.parse(pattern, 0)
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self.assertMatch(schema, [H_(44), H_(0), H_(0), 0, 0])
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paths = [
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[],
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[0],
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[H_(0)],
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[44],
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[H_(44)],
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[44, 0, 0, 0, 0],
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[H_(44), H_(0), H_(0), H_(0), H_(0)],
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[H_(44), H_(0), H_(0), H_(0), H_(0)] * 10,
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]
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for path in paths:
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self.assertMismatch(schema, path)
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def test_ranges_sets(self):
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pattern_ranges = "m/44'/[100-109]'/[0-20]"
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pattern_sets = "m/44'/[100,105,109]'/[0,10,20]"
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schema_ranges = PathSchema.parse(pattern_ranges, 0)
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schema_sets = PathSchema.parse(pattern_sets, 0)
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paths_good = [
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[H_(44), H_(100), 0],
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[H_(44), H_(100), 10],
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[H_(44), H_(100), 20],
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[H_(44), H_(105), 0],
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[H_(44), H_(105), 10],
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[H_(44), H_(105), 20],
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[H_(44), H_(109), 0],
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[H_(44), H_(109), 10],
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[H_(44), H_(109), 20],
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]
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for path in paths_good:
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self.assertMatch(schema_ranges, path)
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self.assertMatch(schema_sets, path)
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paths_bad = [
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[H_(44), H_(100)],
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[H_(44), H_(100), 0, 0],
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[H_(44), 100, 0],
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[H_(44), 100, H_(0)],
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[H_(44), H_(99), 0],
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[H_(44), H_(110), 0],
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[H_(44), H_(100), 21],
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]
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for path in paths_bad:
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self.assertMismatch(schema_ranges, path)
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self.assertMismatch(schema_sets, path)
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self.assertMatch(schema_ranges, [H_(44), H_(104), 19])
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self.assertMismatch(schema_sets, [H_(44), H_(104), 19])
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def test_brackets(self):
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pattern_a = "m/[0]'/[0-5]'/[0,1,2]'/[0]/[0-5]/[0,1,2]"
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pattern_b = "m/0'/0-5'/0,1,2'/0/0-5/0,1,2"
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schema_a = PathSchema.parse(pattern_a, 0)
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schema_b = PathSchema.parse(pattern_b, 0)
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self.assertEqualSchema(schema_a, schema_b)
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def test_wildcard(self):
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pattern = "m/44'/0'/*"
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schema = PathSchema.parse(pattern, 0)
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paths_good = [
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[H_(44), H_(0)],
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[H_(44), H_(0), 0],
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[H_(44), H_(0), 0, 1, 2, 3, 4, 5, 6, 7, 8],
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]
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for path in paths_good:
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self.assertMatch(schema, path)
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paths_bad = [
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[H_(44)],
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[H_(44), H_(0), H_(0)],
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[H_(44), H_(0), 0, 1, 2, 3, 4, 5, 6, 7, H_(8)],
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]
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for path in paths_bad:
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self.assertMismatch(schema, path)
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def test_substitutes(self):
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pattern_sub = "m/44'/coin_type'/account'/change/address_index"
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pattern_plain = "m/44'/19'/0-100'/0,1/0-1000000"
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schema_sub = PathSchema.parse(pattern_sub, slip44_id=19)
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# use wrong slip44 id to ensure it doesn't affect anything
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schema_plain = PathSchema.parse(pattern_plain, slip44_id=0)
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self.assertEqualSchema(schema_sub, schema_plain)
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def test_copy(self):
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schema_normal = PathSchema.parse("m/44'/0'/0'/0/0", slip44_id=0)
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self.assertEqualSchema(schema_normal, schema_normal.copy())
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schema_wildcard = PathSchema.parse("m/44'/0'/0'/0/**", slip44_id=0)
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self.assertEqualSchema(schema_wildcard, schema_wildcard.copy())
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def test_parse(self):
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schema_parsed = PathSchema.parse("m/44'/0-5'/0,1,2'/0/**", slip44_id=0)
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schema_manual = PathSchema(
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[
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(H_(44),),
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Interval(H_(0), H_(5)),
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set((H_(0), H_(1), H_(2))),
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(0,),
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],
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trailing_components=Interval(0, 0xFFFF_FFFF),
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)
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self.assertEqualSchema(schema_manual, schema_parsed)
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def test_restrict(self):
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PATTERN_BIP44 = "m/44'/coin_type'/account'/change/address_index"
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# Restrict coin type to Bitcoin.
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schema = PathSchema.parse(PATTERN_BIP44, (0, 145))
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self.assertTrue(schema.restrict([H_(44), H_(0)]))
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expected = PathSchema.parse(PATTERN_BIP44, 0)
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self.assertEqualSchema(schema, expected)
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# Restrict coin type to Bitcoin Cash and account 2.
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schema = PathSchema.parse(PATTERN_BIP44, (0, 145))
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self.assertTrue(schema.restrict([H_(44), H_(145), H_(2)]))
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expected = PathSchema.parse("m/44'/145'/2'/change/address_index", 0)
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self.assertEqualSchema(schema, expected)
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# Restrict wildcards.
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schema = PathSchema.parse("m/10018'/**", 0)
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self.assertTrue(schema.restrict([H_(10018), H_(3), 7]))
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expected = PathSchema.parse("m/10018'/3'/7/**", 0)
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self.assertEqualSchema(schema, expected)
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# Restrict to a never-matching schema.
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schema = PathSchema.parse(PATTERN_BIP44, (0, 145))
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self.assertFalse(schema.restrict([H_(44), H_(0), 0]))
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if __name__ == "__main__":
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unittest.main()
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