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test(minifier): add arithmetic tests for fold constants. (#6269)

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This commit is contained in:
7086cmd 2024-10-07 09:37:30 +00:00
parent febedffc4b
commit 964d71e1d2
1 changed files with 52 additions and 0 deletions
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52
crates/oxc_minifier/src/ast_passes/peephole_fold_constants.rs
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@ -1572,4 +1572,56 @@ mod test {
test("8589934592 >>> 0", "0");
test("8589934593 >>> 0", "1");
}
#[test]
#[ignore]
fn test_fold_arithmetic() {
test("x = 10 + 20", "x = 30");
test("x = 2 / 4", "x = 0.5");
test("x = 2.25 * 3", "x = 6.75");
test_same("z = x * y");
test_same("x = y * 5");
test_same("x = 1 / 0");
test("x = 3 % 2", "x = 1");
test("x = 3 % -2", "x = 1");
test("x = -1 % 3", "x = -1");
test_same("x = 1 % 0");
test("x = 2 ** 3", "x = 8");
test("x = 2 ** -3", "x = 0.125");
test_same("x = 2 ** 55"); // backs off folding because 2 ** 55 is too large
test_same("x = 3 ** -1"); // backs off because 3**-1 is shorter than 0.3333333333333333
}
#[test]
#[ignore]
fn test_fold_arithmetic2() {
test_same("x = y + 10 + 20");
test_same("x = y / 2 / 4");
test("x = y * 2.25 * 3", "x = y * 6.75");
test_same("x = y * 2.25 * z * 3");
test_same("z = x * y");
test_same("x = y * 5");
test("x = y + (z * 24 * 60 * 60 * 1000)", "x = y + z * 864E5");
}
#[test]
#[ignore]
fn test_fold_arithmetic3() {
test("x = null * undefined", "x = NaN");
test("x = null * 1", "x = 0");
test("x = (null - 1) * 2", "x = -2");
test("x = (null + 1) * 2", "x = 2");
test("x = null ** 0", "x = 1");
test("x = (-0) ** 3", "x = -0");
}
#[test]
#[ignore]
fn test_fold_arithmetic_infinity() {
test("x=-Infinity-2", "x=-Infinity");
test("x=Infinity-2", "x=Infinity");
test("x=Infinity*5", "x=Infinity");
test("x = Infinity ** 2", "x = Infinity");
test("x = Infinity ** -2", "x = 0");
}
}