From 6af39aa49afeb3498d6c5dfa0b60a0fdc15ca47c Mon Sep 17 00:00:00 2001
From: data-man <datamanrb@gmail.com>
Date: Sun, 22 Dec 2019 06:37:25 +0500
Subject: [PATCH] Fixes #3966

---
 lib/std/testing.zig | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/lib/std/testing.zig b/lib/std/testing.zig
index 437c12ee8b..7a261e0751 100644
--- a/lib/std/testing.zig
+++ b/lib/std/testing.zig
@@ -165,7 +165,7 @@ pub fn expectEqualSlices(comptime T: type, expected: []const T, actual: []const
     }
     var i: usize = 0;
     while (i < expected.len) : (i += 1) {
-        if (expected[i] != actual[i]) {
+        if (!std.meta.eql(expected[i], actual[i])) {
             std.debug.panic("index {} incorrect. expected {}, found {}", .{ i, expected[i], actual[i] });
         }
     }
@@ -176,3 +176,17 @@ pub fn expectEqualSlices(comptime T: type, expected: []const T, actual: []const
 pub fn expect(ok: bool) void {
     if (!ok) @panic("test failure");
 }
+
+test "expectEqual nested array" {
+    const a = [2][2]f32{
+        [_]f32{ 1.0, 0.0 },
+        [_]f32{ 0.0, 1.0 },
+    };
+
+    const b = [2][2]f32{
+        [_]f32{ 1.0, 0.0 },
+        [_]f32{ 0.0, 1.0 },
+    };
+
+    expectEqual(a, b);
+}