From 041839ceabbc67165512fde0d33c91347b758487 Mon Sep 17 00:00:00 2001
From: Jakub Kotur <qtr@google.com>
Date: Mon, 21 Dec 2020 17:28:15 +0100
Subject: Initial import of rayon-1.5.0.

Bug: 155309706
Change-Id: I6ff7de1cb89d093d7938abf78d586ed76da85b0d
---
 tests/intersperse.rs | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 tests/intersperse.rs

(limited to 'tests/intersperse.rs')

diff --git a/tests/intersperse.rs b/tests/intersperse.rs
new file mode 100644
index 0000000..aaa5b65
--- /dev/null
+++ b/tests/intersperse.rs
@@ -0,0 +1,60 @@
+use rayon::prelude::*;
+
+#[test]
+fn check_intersperse() {
+    let v: Vec<_> = (0..1000).into_par_iter().intersperse(-1).collect();
+    assert_eq!(v.len(), 1999);
+    for (i, x) in v.into_iter().enumerate() {
+        assert_eq!(x, if i % 2 == 0 { i as i32 / 2 } else { -1 });
+    }
+}
+
+#[test]
+fn check_intersperse_again() {
+    let v: Vec<_> = (0..1000)
+        .into_par_iter()
+        .intersperse(-1)
+        .intersperse(-2)
+        .collect();
+    assert_eq!(v.len(), 3997);
+    for (i, x) in v.into_iter().enumerate() {
+        let y = match i % 4 {
+            0 => i as i32 / 4,
+            2 => -1,
+            _ => -2,
+        };
+        assert_eq!(x, y);
+    }
+}
+
+#[test]
+fn check_intersperse_unindexed() {
+    let v: Vec<_> = (0..1000).map(|i| i.to_string()).collect();
+    let s = v.join(",");
+    let s2 = v.join(";");
+    let par: String = s.par_split(',').intersperse(";").collect();
+    assert_eq!(par, s2);
+}
+
+#[test]
+fn check_intersperse_producer() {
+    (0..1000)
+        .into_par_iter()
+        .intersperse(-1)
+        .zip_eq(0..1999)
+        .for_each(|(x, i)| {
+            assert_eq!(x, if i % 2 == 0 { i / 2 } else { -1 });
+        });
+}
+
+#[test]
+fn check_intersperse_rev() {
+    (0..1000)
+        .into_par_iter()
+        .intersperse(-1)
+        .zip_eq(0..1999)
+        .rev()
+        .for_each(|(x, i)| {
+            assert_eq!(x, if i % 2 == 0 { i / 2 } else { -1 });
+        });
+}
-- 
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