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34 lines
748 B
Rust
34 lines
748 B
Rust
// Test that `Clone` is correctly implemented for builtin types.
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// Also test that cloning an array or a tuple is done right, i.e.
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// each component is cloned.
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fn test_clone<T: Clone>(arg: T) {
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let _ = arg.clone();
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}
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fn foo() {}
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#[derive(Debug, PartialEq, Eq)]
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struct S(i32);
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impl Clone for S {
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fn clone(&self) -> Self {
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S(self.0 + 1)
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}
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}
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#[test]
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fn builtin_clone() {
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test_clone(foo);
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test_clone([1; 56]);
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test_clone((1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1));
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let a = [S(0), S(1), S(2)];
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let b = [S(1), S(2), S(3)];
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assert_eq!(b, a.clone());
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let a = ((S(1), S(0)), ((S(0), S(0), S(1)), S(0)));
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let b = ((S(2), S(1)), ((S(1), S(1), S(2)), S(1)));
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assert_eq!(b, a.clone());
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}
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