#![allow(
clippy::approx_constant,
clippy::useless_vec,
clippy::len_zero,
clippy::unnecessary_cast,
clippy::redundant_closure,
clippy::too_many_arguments,
clippy::type_complexity,
clippy::needless_borrow,
clippy::enum_variant_names,
clippy::upper_case_acronyms,
clippy::inconsistent_digit_grouping,
clippy::unit_cmp,
clippy::assertions_on_constants,
clippy::iter_on_single_items,
clippy::expect_fun_call,
clippy::redundant_pattern_matching,
variant_size_differences,
clippy::absurd_extreme_comparisons,
clippy::nonminimal_bool,
clippy::for_kv_map,
clippy::needless_range_loop,
clippy::single_match,
clippy::collapsible_if,
clippy::needless_return,
clippy::redundant_clone,
clippy::map_entry,
clippy::match_single_binding,
clippy::bool_comparison,
clippy::derivable_impls,
clippy::manual_range_contains,
clippy::needless_borrows_for_generic_args,
clippy::manual_map,
clippy::vec_init_then_push,
clippy::identity_op,
clippy::manual_flatten,
clippy::single_char_pattern,
clippy::search_is_some,
clippy::option_map_unit_fn,
clippy::while_let_on_iterator,
clippy::clone_on_copy,
clippy::box_collection,
clippy::redundant_field_names,
clippy::ptr_arg,
clippy::large_enum_variant,
clippy::match_ref_pats,
clippy::needless_pass_by_value,
clippy::unused_unit,
clippy::let_and_return,
clippy::suspicious_else_formatting,
clippy::manual_strip,
clippy::match_like_matches_macro,
clippy::from_over_into,
clippy::wrong_self_convention,
clippy::inherent_to_string,
clippy::new_without_default,
clippy::unnecessary_wraps,
clippy::field_reassign_with_default,
clippy::manual_find,
clippy::unnecessary_lazy_evaluations,
clippy::should_implement_trait,
clippy::missing_safety_doc,
clippy::unusual_byte_groupings,
clippy::bool_assert_comparison,
clippy::zero_prefixed_literal,
clippy::await_holding_lock,
clippy::manual_saturating_arithmetic,
clippy::explicit_counter_loop,
clippy::needless_lifetimes,
clippy::single_component_path_imports,
clippy::uninlined_format_args,
clippy::iter_cloned_collect,
clippy::manual_str_repeat,
clippy::excessive_precision,
clippy::precedence,
clippy::unnecessary_literal_unwrap
)]
use oxicode::{
config, decode_from_slice, decode_from_slice_with_config, encode_to_vec,
encode_to_vec_with_config,
};
#[test]
fn test_u8_zero_standard_size() {
let val: u8 = 0;
let enc = encode_to_vec(&val).expect("encode u8(0)");
assert_eq!(
enc.len(),
1,
"u8(0) must encode to exactly 1 byte in standard config"
);
let (decoded, _): (u8, usize) = decode_from_slice(&enc).expect("decode u8(0)");
assert_eq!(decoded, val, "u8(0) roundtrip mismatch");
}
#[test]
fn test_u8_max_standard_size() {
let val: u8 = u8::MAX;
let enc = encode_to_vec(&val).expect("encode u8::MAX");
assert!(enc.len() >= 1, "u8::MAX must encode to at least 1 byte");
let (decoded, _): (u8, usize) = decode_from_slice(&enc).expect("decode u8::MAX");
assert_eq!(decoded, val, "u8::MAX roundtrip mismatch");
}
#[test]
fn test_u16_zero_standard_size() {
let val: u16 = 0;
let enc = encode_to_vec(&val).expect("encode u16(0)");
assert_eq!(
enc.len(),
1,
"u16(0) must encode to exactly 1 byte — 0 is in the 1-byte varint range"
);
let (decoded, _): (u16, usize) = decode_from_slice(&enc).expect("decode u16(0)");
assert_eq!(decoded, val, "u16(0) roundtrip mismatch");
}
#[test]
fn test_u16_max_standard_size() {
let val: u16 = u16::MAX;
let enc = encode_to_vec(&val).expect("encode u16::MAX");
assert!(enc.len() >= 2, "u16::MAX must encode to at least 2 bytes");
let (decoded, _): (u16, usize) = decode_from_slice(&enc).expect("decode u16::MAX");
assert_eq!(decoded, val, "u16::MAX roundtrip mismatch");
}
#[test]
fn test_u32_zero_standard_size() {
let val: u32 = 0;
let enc = encode_to_vec(&val).expect("encode u32(0)");
assert_eq!(
enc.len(),
1,
"u32(0) must encode to exactly 1 byte in standard config"
);
let (decoded, _): (u32, usize) = decode_from_slice(&enc).expect("decode u32(0)");
assert_eq!(decoded, val, "u32(0) roundtrip mismatch");
}
#[test]
fn test_u32_max_standard_size() {
let val: u32 = u32::MAX;
let enc = encode_to_vec(&val).expect("encode u32::MAX");
assert!(enc.len() >= 4, "u32::MAX must encode to at least 4 bytes");
let (decoded, _): (u32, usize) = decode_from_slice(&enc).expect("decode u32::MAX");
assert_eq!(decoded, val, "u32::MAX roundtrip mismatch");
}
#[test]
fn test_u64_zero_standard_size() {
let val: u64 = 0;
let enc = encode_to_vec(&val).expect("encode u64(0)");
assert_eq!(
enc.len(),
1,
"u64(0) must encode to exactly 1 byte in standard config"
);
let (decoded, _): (u64, usize) = decode_from_slice(&enc).expect("decode u64(0)");
assert_eq!(decoded, val, "u64(0) roundtrip mismatch");
}
#[test]
fn test_u64_max_standard_size() {
let val: u64 = u64::MAX;
let enc = encode_to_vec(&val).expect("encode u64::MAX");
assert!(enc.len() >= 8, "u64::MAX must encode to at least 8 bytes");
let (decoded, _): (u64, usize) = decode_from_slice(&enc).expect("decode u64::MAX");
assert_eq!(decoded, val, "u64::MAX roundtrip mismatch");
}
#[test]
fn test_u32_small_smaller_than_large() {
let small: u32 = 1;
let large: u32 = u32::MAX;
let small_enc = encode_to_vec(&small).expect("encode u32(1)");
let large_enc = encode_to_vec(&large).expect("encode u32::MAX");
assert!(
small_enc.len() <= large_enc.len(),
"u32(1) ({} bytes) should encode to <= bytes than u32::MAX ({} bytes)",
small_enc.len(),
large_enc.len()
);
}
#[test]
fn test_u64_small_smaller_than_large() {
let small: u64 = 1;
let large: u64 = u64::MAX;
let small_enc = encode_to_vec(&small).expect("encode u64(1)");
let large_enc = encode_to_vec(&large).expect("encode u64::MAX");
assert!(
small_enc.len() <= large_enc.len(),
"u64(1) ({} bytes) should encode to <= bytes than u64::MAX ({} bytes)",
small_enc.len(),
large_enc.len()
);
}
#[test]
fn test_u32_fixed_int_always_4_bytes() {
let fixed_cfg = config::standard().with_fixed_int_encoding();
let cases: &[u32] = &[0, 1, u32::MAX];
for &val in cases {
let enc = encode_to_vec_with_config(&val, fixed_cfg).expect("encode u32 fixed");
assert_eq!(
enc.len(),
4,
"u32({}) with fixed_int_encoding must always be exactly 4 bytes, got {}",
val,
enc.len()
);
let (decoded, _): (u32, usize) =
decode_from_slice_with_config(&enc, fixed_cfg).expect("decode u32 fixed");
assert_eq!(decoded, val, "u32({}) fixed_int roundtrip mismatch", val);
}
}
#[test]
fn test_u64_fixed_int_always_8_bytes() {
let fixed_cfg = config::standard().with_fixed_int_encoding();
let cases: &[u64] = &[0, 1, u64::MAX];
for &val in cases {
let enc = encode_to_vec_with_config(&val, fixed_cfg).expect("encode u64 fixed");
assert_eq!(
enc.len(),
8,
"u64({}) with fixed_int_encoding must always be exactly 8 bytes, got {}",
val,
enc.len()
);
let (decoded, _): (u64, usize) =
decode_from_slice_with_config(&enc, fixed_cfg).expect("decode u64 fixed");
assert_eq!(decoded, val, "u64({}) fixed_int roundtrip mismatch", val);
}
}
#[test]
fn test_u16_fixed_int_always_2_bytes() {
let fixed_cfg = config::standard().with_fixed_int_encoding();
let cases: &[u16] = &[0, 1, u16::MAX];
for &val in cases {
let enc = encode_to_vec_with_config(&val, fixed_cfg).expect("encode u16 fixed");
assert_eq!(
enc.len(),
2,
"u16({}) with fixed_int_encoding must always be exactly 2 bytes, got {}",
val,
enc.len()
);
let (decoded, _): (u16, usize) =
decode_from_slice_with_config(&enc, fixed_cfg).expect("decode u16 fixed");
assert_eq!(decoded, val, "u16({}) fixed_int roundtrip mismatch", val);
}
}
#[test]
fn test_u8_fixed_int_always_1_byte() {
let fixed_cfg = config::standard().with_fixed_int_encoding();
let cases: &[u8] = &[0, 1, u8::MAX];
for &val in cases {
let enc = encode_to_vec_with_config(&val, fixed_cfg).expect("encode u8 fixed");
assert_eq!(
enc.len(),
1,
"u8({}) with fixed_int_encoding must always be exactly 1 byte, got {}",
val,
enc.len()
);
let (decoded, _): (u8, usize) =
decode_from_slice_with_config(&enc, fixed_cfg).expect("decode u8 fixed");
assert_eq!(decoded, val, "u8({}) fixed_int roundtrip mismatch", val);
}
}
#[test]
fn test_i32_zero_standard_size() {
let val: i32 = 0;
let enc = encode_to_vec(&val).expect("encode i32(0)");
assert_eq!(
enc.len(),
1,
"i32(0) zigzag=0 must encode to exactly 1 byte"
);
let (decoded, _): (i32, usize) = decode_from_slice(&enc).expect("decode i32(0)");
assert_eq!(decoded, val, "i32(0) roundtrip mismatch");
}
#[test]
fn test_i32_minus_one_size() {
let val: i32 = -1;
let enc = encode_to_vec(&val).expect("encode i32(-1)");
assert_eq!(
enc.len(),
1,
"i32(-1) zigzag=1 must encode to exactly 1 byte"
);
let (decoded, _): (i32, usize) = decode_from_slice(&enc).expect("decode i32(-1)");
assert_eq!(decoded, val, "i32(-1) roundtrip mismatch");
}
#[test]
fn test_i32_large_positive_size() {
let val: i32 = i32::MAX;
let enc = encode_to_vec(&val).expect("encode i32::MAX");
assert!(enc.len() >= 4, "i32::MAX must encode to at least 4 bytes");
let (decoded, _): (i32, usize) = decode_from_slice(&enc).expect("decode i32::MAX");
assert_eq!(decoded, val, "i32::MAX roundtrip mismatch");
}
#[test]
fn test_i64_zero_standard_size() {
let val: i64 = 0;
let enc = encode_to_vec(&val).expect("encode i64(0)");
assert_eq!(
enc.len(),
1,
"i64(0) zigzag=0 must encode to exactly 1 byte"
);
let (decoded, _): (i64, usize) = decode_from_slice(&enc).expect("decode i64(0)");
assert_eq!(decoded, val, "i64(0) roundtrip mismatch");
}
#[test]
fn test_varint_roundtrip_boundary_values() {
let boundary_vals: &[u32] = &[0, 127, 128, 255, 256, 65535, 65536];
for &val in boundary_vals {
let enc = encode_to_vec(&val).expect("encode boundary u32");
let (decoded, consumed): (u32, usize) =
decode_from_slice(&enc).expect("decode boundary u32");
assert_eq!(decoded, val, "u32({}) boundary roundtrip mismatch", val);
assert_eq!(
consumed,
enc.len(),
"u32({}) consumed bytes must equal encoded length",
val
);
}
let enc_zero = encode_to_vec(&0u32).expect("encode 0");
assert_eq!(enc_zero.len(), 1, "u32(0) must be exactly 1 byte");
let enc_65535 = encode_to_vec(&65535u32).expect("encode 65535");
let enc_65536 = encode_to_vec(&65536u32).expect("encode 65536");
assert!(
enc_65535.len() <= enc_65536.len(),
"u32(65535) should encode to <= bytes than u32(65536)"
);
}
#[test]
fn test_fixed_int_vs_standard_large_value_size() {
let val: u32 = u32::MAX;
let std_cfg = config::standard();
let fixed_cfg = config::standard().with_fixed_int_encoding();
let std_enc = encode_to_vec_with_config(&val, std_cfg).expect("encode u32::MAX standard");
let fixed_enc = encode_to_vec_with_config(&val, fixed_cfg).expect("encode u32::MAX fixed");
assert_eq!(
fixed_enc.len(),
4,
"u32::MAX with fixed_int must always be 4 bytes"
);
assert!(
std_enc.len() >= 4,
"u32::MAX with standard (varint) must be at least 4 bytes, got {}",
std_enc.len()
);
let (std_decoded, _): (u32, usize) =
decode_from_slice_with_config(&std_enc, std_cfg).expect("decode u32::MAX standard");
let (fixed_decoded, _): (u32, usize) =
decode_from_slice_with_config(&fixed_enc, fixed_cfg).expect("decode u32::MAX fixed");
assert_eq!(std_decoded, val, "u32::MAX standard roundtrip mismatch");
assert_eq!(fixed_decoded, val, "u32::MAX fixed roundtrip mismatch");
}
#[test]
fn test_usize_zero_standard_roundtrip() {
let val: usize = 0;
let enc = encode_to_vec(&val).expect("encode usize(0)");
assert_eq!(
enc.len(),
1,
"usize(0) must encode to exactly 1 byte in standard config"
);
let (decoded, consumed): (usize, usize) = decode_from_slice(&enc).expect("decode usize(0)");
assert_eq!(decoded, val, "usize(0) roundtrip mismatch");
assert_eq!(
consumed,
enc.len(),
"usize(0) consumed must equal encoded length"
);
}
#[test]
fn test_usize_large_roundtrip() {
let val: usize = 1_000_000;
let enc = encode_to_vec(&val).expect("encode usize(1_000_000)");
assert!(
enc.len() >= 3,
"usize(1_000_000) must encode to at least 3 bytes"
);
let (decoded, consumed): (usize, usize) =
decode_from_slice(&enc).expect("decode usize(1_000_000)");
assert_eq!(decoded, val, "usize(1_000_000) roundtrip mismatch");
assert_eq!(
consumed,
enc.len(),
"usize(1_000_000) consumed must equal encoded length"
);
}