Move libcore/time tests from `time.rs` to `tests/time.rs`

All other tests of libcore reside in the tests/ directory,
too. Apparently the tests of `time.rs` weren't run before, at
least not by `x.py test src/libcore`.

3 files changed, 123 insertions, 116 deletions

diff --git a/src/libcore/tests/lib.rs b/src/libcore/tests/lib.rs
index f6750c590b3..340879c6b85 100644
--- a/src/libcore/tests/lib.rs
+++ b/src/libcore/tests/lib.rs
@@ -74,4 +74,5 @@ mod result;
 mod slice;
 mod str;
 mod str_lossy;
+mod time;
 mod tuple;
diff --git a/src/libcore/tests/time.rs b/src/libcore/tests/time.rs
new file mode 100644
index 00000000000..9e6f284859c
--- /dev/null
+++ b/src/libcore/tests/time.rs
@@ -0,0 +1,122 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use core::time::Duration;
+
+#[test]
+fn creation() {
+    assert!(Duration::from_secs(1) != Duration::from_secs(0));
+    assert_eq!(Duration::from_secs(1) + Duration::from_secs(2),
+               Duration::from_secs(3));
+    assert_eq!(Duration::from_millis(10) + Duration::from_secs(4),
+               Duration::new(4, 10 * 1_000_000));
+    assert_eq!(Duration::from_millis(4000), Duration::new(4, 0));
+}
+
+#[test]
+fn secs() {
+    assert_eq!(Duration::new(0, 0).as_secs(), 0);
+    assert_eq!(Duration::from_secs(1).as_secs(), 1);
+    assert_eq!(Duration::from_millis(999).as_secs(), 0);
+    assert_eq!(Duration::from_millis(1001).as_secs(), 1);
+}
+
+#[test]
+fn nanos() {
+    assert_eq!(Duration::new(0, 0).subsec_nanos(), 0);
+    assert_eq!(Duration::new(0, 5).subsec_nanos(), 5);
+    assert_eq!(Duration::new(0, 1_000_000_001).subsec_nanos(), 1);
+    assert_eq!(Duration::from_secs(1).subsec_nanos(), 0);
+    assert_eq!(Duration::from_millis(999).subsec_nanos(), 999 * 1_000_000);
+    assert_eq!(Duration::from_millis(1001).subsec_nanos(), 1 * 1_000_000);
+}
+
+#[test]
+fn add() {
+    assert_eq!(Duration::new(0, 0) + Duration::new(0, 1),
+               Duration::new(0, 1));
+    assert_eq!(Duration::new(0, 500_000_000) + Duration::new(0, 500_000_001),
+               Duration::new(1, 1));
+}
+
+#[test]
+fn checked_add() {
+    assert_eq!(Duration::new(0, 0).checked_add(Duration::new(0, 1)),
+               Some(Duration::new(0, 1)));
+    assert_eq!(Duration::new(0, 500_000_000).checked_add(Duration::new(0, 500_000_001)),
+               Some(Duration::new(1, 1)));
+    assert_eq!(Duration::new(1, 0).checked_add(Duration::new(::core::u64::MAX, 0)), None);
+}
+
+#[test]
+fn sub() {
+    assert_eq!(Duration::new(0, 1) - Duration::new(0, 0),
+               Duration::new(0, 1));
+    assert_eq!(Duration::new(0, 500_000_001) - Duration::new(0, 500_000_000),
+               Duration::new(0, 1));
+    assert_eq!(Duration::new(1, 0) - Duration::new(0, 1),
+               Duration::new(0, 999_999_999));
+}
+
+#[test]
+fn checked_sub() {
+    let zero = Duration::new(0, 0);
+    let one_nano = Duration::new(0, 1);
+    let one_sec = Duration::new(1, 0);
+    assert_eq!(one_nano.checked_sub(zero), Some(Duration::new(0, 1)));
+    assert_eq!(one_sec.checked_sub(one_nano),
+               Some(Duration::new(0, 999_999_999)));
+    assert_eq!(zero.checked_sub(one_nano), None);
+    assert_eq!(zero.checked_sub(one_sec), None);
+}
+
+#[test] #[should_panic]
+fn sub_bad1() {
+    Duration::new(0, 0) - Duration::new(0, 1);
+}
+
+#[test] #[should_panic]
+fn sub_bad2() {
+    Duration::new(0, 0) - Duration::new(1, 0);
+}
+
+#[test]
+fn mul() {
+    assert_eq!(Duration::new(0, 1) * 2, Duration::new(0, 2));
+    assert_eq!(Duration::new(1, 1) * 3, Duration::new(3, 3));
+    assert_eq!(Duration::new(0, 500_000_001) * 4, Duration::new(2, 4));
+    assert_eq!(Duration::new(0, 500_000_001) * 4000,
+               Duration::new(2000, 4000));
+}
+
+#[test]
+fn checked_mul() {
+    assert_eq!(Duration::new(0, 1).checked_mul(2), Some(Duration::new(0, 2)));
+    assert_eq!(Duration::new(1, 1).checked_mul(3), Some(Duration::new(3, 3)));
+    assert_eq!(Duration::new(0, 500_000_001).checked_mul(4), Some(Duration::new(2, 4)));
+    assert_eq!(Duration::new(0, 500_000_001).checked_mul(4000),
+               Some(Duration::new(2000, 4000)));
+    assert_eq!(Duration::new(::core::u64::MAX - 1, 0).checked_mul(2), None);
+}
+
+#[test]
+fn div() {
+    assert_eq!(Duration::new(0, 1) / 2, Duration::new(0, 0));
+    assert_eq!(Duration::new(1, 1) / 3, Duration::new(0, 333_333_333));
+    assert_eq!(Duration::new(99, 999_999_000) / 100,
+               Duration::new(0, 999_999_990));
+}
+
+#[test]
+fn checked_div() {
+    assert_eq!(Duration::new(2, 0).checked_div(2), Some(Duration::new(1, 0)));
+    assert_eq!(Duration::new(1, 0).checked_div(2), Some(Duration::new(0, 500_000_000)));
+    assert_eq!(Duration::new(2, 0).checked_div(0), None);
+}
diff --git a/src/libcore/time.rs b/src/libcore/time.rs
index e22fe450bb1..8e8b1691c65 100644
--- a/src/libcore/time.rs
+++ b/src/libcore/time.rs
@@ -481,119 +481,3 @@ impl<'a> Sum<&'a Duration> for Duration {
         iter.fold(Duration::new(0, 0), |a, b| a + *b)
     }
 }
-
-#[cfg(test)]
-mod tests {
-    use super::Duration;
-
-    #[test]
-    fn creation() {
-        assert!(Duration::from_secs(1) != Duration::from_secs(0));
-        assert_eq!(Duration::from_secs(1) + Duration::from_secs(2),
-                   Duration::from_secs(3));
-        assert_eq!(Duration::from_millis(10) + Duration::from_secs(4),
-                   Duration::new(4, 10 * 1_000_000));
-        assert_eq!(Duration::from_millis(4000), Duration::new(4, 0));
-    }
-
-    #[test]
-    fn secs() {
-        assert_eq!(Duration::new(0, 0).as_secs(), 0);
-        assert_eq!(Duration::from_secs(1).as_secs(), 1);
-        assert_eq!(Duration::from_millis(999).as_secs(), 0);
-        assert_eq!(Duration::from_millis(1001).as_secs(), 1);
-    }
-
-    #[test]
-    fn nanos() {
-        assert_eq!(Duration::new(0, 0).subsec_nanos(), 0);
-        assert_eq!(Duration::new(0, 5).subsec_nanos(), 5);
-        assert_eq!(Duration::new(0, 1_000_000_001).subsec_nanos(), 1);
-        assert_eq!(Duration::from_secs(1).subsec_nanos(), 0);
-        assert_eq!(Duration::from_millis(999).subsec_nanos(), 999 * 1_000_000);
-        assert_eq!(Duration::from_millis(1001).subsec_nanos(), 1 * 1_000_000);
-    }
-
-    #[test]
-    fn add() {
-        assert_eq!(Duration::new(0, 0) + Duration::new(0, 1),
-                   Duration::new(0, 1));
-        assert_eq!(Duration::new(0, 500_000_000) + Duration::new(0, 500_000_001),
-                   Duration::new(1, 1));
-    }
-
-    #[test]
-    fn checked_add() {
-        assert_eq!(Duration::new(0, 0).checked_add(Duration::new(0, 1)),
-                   Some(Duration::new(0, 1)));
-        assert_eq!(Duration::new(0, 500_000_000).checked_add(Duration::new(0, 500_000_001)),
-                   Some(Duration::new(1, 1)));
-        assert_eq!(Duration::new(1, 0).checked_add(Duration::new(::u64::MAX, 0)), None);
-    }
-
-    #[test]
-    fn sub() {
-        assert_eq!(Duration::new(0, 1) - Duration::new(0, 0),
-                   Duration::new(0, 1));
-        assert_eq!(Duration::new(0, 500_000_001) - Duration::new(0, 500_000_000),
-                   Duration::new(0, 1));
-        assert_eq!(Duration::new(1, 0) - Duration::new(0, 1),
-                   Duration::new(0, 999_999_999));
-    }
-
-    #[test]
-    fn checked_sub() {
-        let zero = Duration::new(0, 0);
-        let one_nano = Duration::new(0, 1);
-        let one_sec = Duration::new(1, 0);
-        assert_eq!(one_nano.checked_sub(zero), Some(Duration::new(0, 1)));
-        assert_eq!(one_sec.checked_sub(one_nano),
-                   Some(Duration::new(0, 999_999_999)));
-        assert_eq!(zero.checked_sub(one_nano), None);
-        assert_eq!(zero.checked_sub(one_sec), None);
-    }
-
-    #[test] #[should_panic]
-    fn sub_bad1() {
-        Duration::new(0, 0) - Duration::new(0, 1);
-    }
-
-    #[test] #[should_panic]
-    fn sub_bad2() {
-        Duration::new(0, 0) - Duration::new(1, 0);
-    }
-
-    #[test]
-    fn mul() {
-        assert_eq!(Duration::new(0, 1) * 2, Duration::new(0, 2));
-        assert_eq!(Duration::new(1, 1) * 3, Duration::new(3, 3));
-        assert_eq!(Duration::new(0, 500_000_001) * 4, Duration::new(2, 4));
-        assert_eq!(Duration::new(0, 500_000_001) * 4000,
-                   Duration::new(2000, 4000));
-    }
-
-    #[test]
-    fn checked_mul() {
-        assert_eq!(Duration::new(0, 1).checked_mul(2), Some(Duration::new(0, 2)));
-        assert_eq!(Duration::new(1, 1).checked_mul(3), Some(Duration::new(3, 3)));
-        assert_eq!(Duration::new(0, 500_000_001).checked_mul(4), Some(Duration::new(2, 4)));
-        assert_eq!(Duration::new(0, 500_000_001).checked_mul(4000),
-                   Some(Duration::new(2000, 4000)));
-        assert_eq!(Duration::new(::u64::MAX - 1, 0).checked_mul(2), None);
-    }
-
-    #[test]
-    fn div() {
-        assert_eq!(Duration::new(0, 1) / 2, Duration::new(0, 0));
-        assert_eq!(Duration::new(1, 1) / 3, Duration::new(0, 333_333_333));
-        assert_eq!(Duration::new(99, 999_999_000) / 100,
-                   Duration::new(0, 999_999_990));
-    }
-
-    #[test]
-    fn checked_div() {
-        assert_eq!(Duration::new(2, 0).checked_div(2), Some(Duration::new(1, 0)));
-        assert_eq!(Duration::new(1, 0).checked_div(2), Some(Duration::new(0, 500_000_000)));
-        assert_eq!(Duration::new(2, 0).checked_div(0), None);
-    }
-}