From 8ec9f634b46b17a1dd1b4bcaeb0797a29f8aea5d Mon Sep 17 00:00:00 2001
From: Muki Kiboigo <muki@muki.gg>
Date: Mon, 8 Dec 2025 05:16:45 -0800
Subject: [PATCH] backport URL eqlDocument tests

---
 src/browser/URL.zig | 71 ++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 70 insertions(+), 1 deletion(-)

diff --git a/src/browser/URL.zig b/src/browser/URL.zig
index 6fdc97b9..11739b07 100644
--- a/src/browser/URL.zig
+++ b/src/browser/URL.zig
@@ -272,11 +272,12 @@ pub fn getHost(raw: [:0]const u8) []const u8 {
 
 // Returns true if these two URLs point to the same document.
 pub fn eqlDocument(first: [:0]const u8, second: [:0]const u8) bool {
+    if (!std.mem.eql(u8, getProtocol(first), getProtocol(second))) return false;
     if (!std.mem.eql(u8, getHost(first), getHost(second))) return false;
     if (!std.mem.eql(u8, getPort(first), getPort(second))) return false;
     if (!std.mem.eql(u8, getPathname(first), getPathname(second))) return false;
     if (!std.mem.eql(u8, getSearch(first), getSearch(second))) return false;
-    if (!std.mem.eql(u8, getHash(first), getHash(second))) return false;
+    // hashes are allowed to be different.
 
     return true;
 }
@@ -449,3 +450,71 @@ test "URL: resolve" {
         try testing.expectString(case.expected, result);
     }
 }
+
+test "URL: eqlDocument" {
+    defer testing.reset();
+    {
+        const url = "https://lightpanda.io/about";
+        try testing.expectEqual(true, eqlDocument(url, url));
+    }
+    {
+        const url1 = "https://lightpanda.io/about";
+        const url2 = "http://lightpanda.io/about";
+        try testing.expectEqual(false, eqlDocument(url1, url2));
+    }
+    {
+        const url1 = "https://lightpanda.io/about";
+        const url2 = "https://example.com/about";
+        try testing.expectEqual(false, eqlDocument(url1, url2));
+    }
+    {
+        const url1 = "https://lightpanda.io:8080/about";
+        const url2 = "https://lightpanda.io:9090/about";
+        try testing.expectEqual(false, eqlDocument(url1, url2));
+    }
+    {
+        const url1 = "https://lightpanda.io/about";
+        const url2 = "https://lightpanda.io/contact";
+        try testing.expectEqual(false, eqlDocument(url1, url2));
+    }
+    {
+        const url1 = "https://lightpanda.io/about?foo=bar";
+        const url2 = "https://lightpanda.io/about?baz=qux";
+        try testing.expectEqual(false, eqlDocument(url1, url2));
+    }
+    {
+        const url1 = "https://lightpanda.io/about#section1";
+        const url2 = "https://lightpanda.io/about#section2";
+        try testing.expectEqual(true, eqlDocument(url1, url2));
+    }
+    {
+        const url1 = "https://lightpanda.io/about";
+        const url2 = "https://lightpanda.io/about/";
+        try testing.expectEqual(false, eqlDocument(url1, url2));
+    }
+    {
+        const url1 = "https://lightpanda.io/about?foo=bar";
+        const url2 = "https://lightpanda.io/about";
+        try testing.expectEqual(false, eqlDocument(url1, url2));
+    }
+    {
+        const url1 = "https://lightpanda.io/about";
+        const url2 = "https://lightpanda.io/about?foo=bar";
+        try testing.expectEqual(false, eqlDocument(url1, url2));
+    }
+    {
+        const url1 = "https://lightpanda.io/about?foo=bar";
+        const url2 = "https://lightpanda.io/about?foo=bar";
+        try testing.expectEqual(true, eqlDocument(url1, url2));
+    }
+    {
+        const url1 = "https://lightpanda.io/about?";
+        const url2 = "https://lightpanda.io/about";
+        try testing.expectEqual(false, eqlDocument(url1, url2));
+    }
+    {
+        const url1 = "https://duckduckgo.com/";
+        const url2 = "https://duckduckgo.com/?q=lightpanda";
+        try testing.expectEqual(false, eqlDocument(url1, url2));
+    }
+}