1 files changed, 53 insertions, 0 deletions
diff --git a/library/alloc/tests/vec.rs b/library/alloc/tests/vec.rs
index ffff543b07f..b422960c199 100644
--- a/library/alloc/tests/vec.rs
+++ b/library/alloc/tests/vec.rs
@@ -73,6 +73,39 @@ fn test_zst_capacity() {
 }
 
 #[test]
+fn test_indexing() {
+    let v: Vec<isize> = vec![10, 20];
+    assert_eq!(v[0], 10);
+    assert_eq!(v[1], 20);
+    let mut x: usize = 0;
+    assert_eq!(v[x], 10);
+    assert_eq!(v[x + 1], 20);
+    x = x + 1;
+    assert_eq!(v[x], 20);
+    assert_eq!(v[x - 1], 10);
+}
+
+#[test]
+fn test_debug_fmt() {
+    let vec1: Vec<isize> = vec![];
+    assert_eq!("[]", format!("{:?}", vec1));
+
+    let vec2 = vec![0, 1];
+    assert_eq!("[0, 1]", format!("{:?}", vec2));
+}
+
+#[test]
+fn test_push() {
+    let mut v = vec![];
+    v.push(1);
+    assert_eq!(v, [1]);
+    v.push(2);
+    assert_eq!(v, [1, 2]);
+    v.push(3);
+    assert_eq!(v, [1, 2, 3]);
+}
+
+#[test]
 fn test_extend() {
     let mut v = Vec::new();
     let mut w = Vec::new();
@@ -118,6 +151,18 @@ fn test_extend() {
 }
 
 #[test]
+fn test_extend_from_slice() {
+    let a: Vec<isize> = vec![1, 2, 3, 4, 5];
+    let b: Vec<isize> = vec![6, 7, 8, 9, 0];
+
+    let mut v: Vec<isize> = a;
+
+    v.extend_from_slice(&b);
+
+    assert_eq!(v, [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]);
+}
+
+#[test]
 fn test_extend_ref() {
     let mut v = vec![1, 2];
     v.extend(&[3, 4, 5]);
@@ -133,6 +178,14 @@ fn test_extend_ref() {
 }
 
 #[test]
+fn test_slice_from_ref() {
+    let values = vec![1, 2, 3, 4, 5];
+    let slice = &values[1..3];
+
+    assert_eq!(slice, [2, 3]);
+}
+
+#[test]
 fn test_slice_from_mut() {
     let mut values = vec![1, 2, 3, 4, 5];
     {