comptime sieve

rust/prime-factors/tests/prime_factors.rs

@@ -0,0 +1,96 @@
+use prime_factors::*;
+
+#[test]
+fn no_factors() {
+    let factors = factors(1);
+    let expected = [];
+    assert_eq!(factors, expected);
+}
+
+#[test]
+#[ignore]
+fn prime_number() {
+    let factors = factors(2);
+    let expected = [2];
+    assert_eq!(factors, expected);
+}
+
+#[test]
+#[ignore]
+fn another_prime_number() {
+    let factors = factors(3);
+    let expected = [3];
+    assert_eq!(factors, expected);
+}
+
+#[test]
+#[ignore]
+fn square_of_a_prime() {
+    let factors = factors(9);
+    let expected = [3, 3];
+    assert_eq!(factors, expected);
+}
+
+#[test]
+#[ignore]
+fn product_of_first_prime() {
+    let factors = factors(4);
+    let expected = [2, 2];
+    assert_eq!(factors, expected);
+}
+
+#[test]
+#[ignore]
+fn cube_of_a_prime() {
+    let factors = factors(8);
+    let expected = [2, 2, 2];
+    assert_eq!(factors, expected);
+}
+
+#[test]
+#[ignore]
+fn product_of_second_prime() {
+    let factors = factors(27);
+    let expected = [3, 3, 3];
+    assert_eq!(factors, expected);
+}
+
+#[test]
+#[ignore]
+fn product_of_third_prime() {
+    let factors = factors(625);
+    let expected = [5, 5, 5, 5];
+    assert_eq!(factors, expected);
+}
+
+#[test]
+#[ignore]
+fn product_of_first_and_second_prime() {
+    let factors = factors(6);
+    let expected = [2, 3];
+    assert_eq!(factors, expected);
+}
+
+#[test]
+#[ignore]
+fn product_of_primes_and_non_primes() {
+    let factors = factors(12);
+    let expected = [2, 2, 3];
+    assert_eq!(factors, expected);
+}
+
+#[test]
+#[ignore]
+fn product_of_primes() {
+    let factors = factors(901_255);
+    let expected = [5, 17, 23, 461];
+    assert_eq!(factors, expected);
+}
+
+#[test]
+#[ignore]
+fn factors_include_a_large_prime() {
+    let factors = factors(93_819_012_551);
+    let expected = [11, 9_539, 894_119];
+    assert_eq!(factors, expected);
+}