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ww/lib/strings/contains_test.ww
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// Vectors mirror ref/hare/strings/contains.ha (task #5 @test conversion).
package strings_test;
import strings;
// ref/hare/strings/contains.ha:27.
@test fn contains_cases() void = {
assert(!(!strings.contains("hello world", "hello")));
assert(!(!strings.contains("hello world", 'h')));
assert(!( strings.contains("hello world", 'x')));
assert(!(!strings.contains("hello world", "world")));
assert(!(!strings.contains("hello world", ""))); // empty hits at 0
assert(!( strings.contains("hello world", "foobar")));
assert(!(!strings.contains("こんにちは", 0x306Bu32: rune))); // 'に'
assert(!(!strings.contains("こんにちは", "ちは")));
// Variadic rows. ref/hare/strings/contains.ha:27.
assert(!( strings.contains("hello")));
assert(!(!strings.contains("hello world", "world")));
assert(!(!strings.contains("hello", 'l')));
assert(!(!strings.contains("hello world", "foo", "world", 'x')));
assert(!( strings.contains("hello", "foo", 'z', "bar")));
assert(!(!strings.contains("héllo", "x", 0xE9u32: rune)));
};