TestPeekKindWithPointer tests that PeekKind correctly follows pointers to get the actual kind of the pointed-to value.

TestReflectUintFromMultipleSourceKinds covers the three KindUint* cases that tryFastDecodeTyped's reflect.Uint branch accepts for a plain `uint` field

TestReflectUintOverflowFallback exercises the platform-width guard in tryFastDecodeTyped's reflect.Uint case: when the DB encodes a uint64 value that

TestSetIPv4StartKnownValues asserts the exact ipv4Start and ipv4StartBitDepth setIPv4Start computes for the standard mixed databases. The parity tests

TestStringCacheConcurrent stresses the lock-free cache with multiple goroutines hammering shared offsets. With -race this catches torn reads and admis

TestStringCacheNoAdmissionOnSlotCollision verifies that two offsets mapping to the same slot alternately miss without admitting. The Swap rule encodes

TestStringCacheTwoMissAdmission verifies the admission policy: the first miss at a given offset records the offset in recentMisses but does not store

TestTagValidationIntegration tests that tag validation works during field processing.

TestTraverseIPv4TreeBoundsCheck isolates the bounds-check error path added to the specialized IPv4 walks at reader.go:625-629, 699-703, 786-790. The g

Dedup with above somehow.

TestV4ToV16RoundTrip exercises v4ToV16 and v6ToV4 directly. They are only covered indirectly via lookup parity tests, which would not catch a regressi

UnmarshalMaxMindDB implements the Unmarshaler interface for TestCity. This demonstrates custom decoding that avoids reflection for better performance.

UnmarshalMaxMindDB implements the mmdbdata.Unmarshaler interface. This provides custom decoding logic, similar to how json.Unmarshaler works with enco

mmap maps a file into memory and returns a byte slice.

munmap unmaps a memory-mapped file and releases associated resources.