75 lines
2.4 KiB
Plaintext
75 lines
2.4 KiB
Plaintext
// Vectors mirror ref/hare/encoding/utf8/rune.ha. A failing row aborts
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// via the assert/abort builtin (task #5 @test conversion).
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package utf8_test;
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import encoding.utf8;
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// ref/hare/encoding/utf8/rune.ha:5. Boundaries: 0x7F → 1, 0x80 → 2,
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// 0x7FF → 2, 0x800 → 3, 0xFFFF → 3, 0x10000 → 4, 0x10FFFF → 4.
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@test fn runesz_ranges() void = {
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assert(!(utf8.runesz(0u32: rune) != 1));
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assert(!(utf8.runesz(0x7Fu32: rune) != 1));
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assert(!(utf8.runesz(0x80u32: rune) != 2));
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assert(!(utf8.runesz(0x7FFu32: rune) != 2));
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assert(!(utf8.runesz(0x800u32: rune) != 3));
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assert(!(utf8.runesz(0xFFFFu32: rune) != 3));
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assert(!(utf8.runesz(0x10000u32: rune) != 4));
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assert(!(utf8.runesz(0x10FFFFu32: rune) != 4));
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};
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// ref/hare/encoding/utf8/rune.ha:15. ASCII → 1; legal multibyte
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// leads → 2/3/4; continuation and >0xF4 → invalid.
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@test fn utf8sz_classify() void = {
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match (utf8.utf8sz(0u8)) {
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case let n: i32 => { assert(!(n != 1)); };
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case let e: utf8.invalid => { abort(); };
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};
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match (utf8.utf8sz(0x7Fu8)) {
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case let n: i32 => { assert(!(n != 1)); };
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case let e: utf8.invalid => { abort(); };
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};
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match (utf8.utf8sz(0x80u8)) { // continuation
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case let n: i32 => { abort(); };
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case let e: utf8.invalid => void;
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};
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match (utf8.utf8sz(0xC1u8)) { // overlong 2-byte lead
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case let n: i32 => { abort(); };
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case let e: utf8.invalid => void;
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};
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match (utf8.utf8sz(0xC2u8)) {
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case let n: i32 => { assert(!(n != 2)); };
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case let e: utf8.invalid => { abort(); };
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};
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match (utf8.utf8sz(0xE0u8)) {
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case let n: i32 => { assert(!(n != 3)); };
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case let e: utf8.invalid => { abort(); };
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};
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match (utf8.utf8sz(0xF0u8)) {
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case let n: i32 => { assert(!(n != 4)); };
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case let e: utf8.invalid => { abort(); };
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};
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match (utf8.utf8sz(0xF4u8)) { // U+10FFFF may begin with F4
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case let n: i32 => { assert(!(n != 4)); };
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case let e: utf8.invalid => { abort(); };
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};
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match (utf8.utf8sz(0xF5u8)) { // above Unicode's scalar range
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case let n: i32 => { abort(); };
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case let e: utf8.invalid => void;
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};
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match (utf8.utf8sz(0xF6u8)) {
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case let n: i32 => { abort(); };
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case let e: utf8.invalid => void;
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};
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match (utf8.utf8sz(0xF7u8)) {
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case let n: i32 => { abort(); };
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case let e: utf8.invalid => void;
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};
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match (utf8.utf8sz(0xFFu8)) {
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case let n: i32 => { abort(); };
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case let e: utf8.invalid => void;
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};
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};
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