From 2f28cd5eb086978b9397f7aef73fcf449819f6d0 Mon Sep 17 00:00:00 2001
From: bendtherules <abhasbhattacharya2@gmail.com>
Date: Fri, 20 Sep 2019 11:32:47 +0530
Subject: [PATCH] match - Add testcase - negative check for difference between
 child and descendant

---
 test/matchGenerator-basic.spec.tsx | 41 ++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/test/matchGenerator-basic.spec.tsx b/test/matchGenerator-basic.spec.tsx
index e4ff808..357677f 100644
--- a/test/matchGenerator-basic.spec.tsx
+++ b/test/matchGenerator-basic.spec.tsx
@@ -94,5 +94,46 @@ describe("matchGenerator", () => {
       expect((nodes[0] as FiberNodeForComponentClass).type).toBe(C2);
       expect((nodes[0] as FiberNodeForComponentClass).type).not.toBe(C1);
     });
+
+    it("should work for depth=2 class with child selector", () => {
+      const [C1, C2] = createClassComponents(["C1", "C2"]);
+      function CRoot() {
+        return (
+          <C1>
+            <C2 />
+          </C1>
+        );
+      }
+      const rootNode = mountAndGetRootNode(CRoot, container);
+
+      const nodes = matchAll(rootNode, "C1>C2");
+
+      // Can't be zero, in any case
+      expect(nodes.length).not.toBe(0);
+      // Check that only one node is yielded
+      expect(nodes.length).toBe(1);
+      // Check that type is correct
+      expect((nodes[0] as FiberNodeForComponentClass).type).toBe(C2);
+      expect((nodes[0] as FiberNodeForComponentClass).type).not.toBe(C1);
+    });
+
+    it("should not work with child selector for nth-level descendant", () => {
+      const [C1, C2, C3] = createClassComponents(["C1", "C2", "C3"]);
+      function CRoot() {
+        return (
+          <C1>
+            <C2>
+              <C3 />
+            </C2>
+          </C1>
+        );
+      }
+      const rootNode = mountAndGetRootNode(CRoot, container);
+
+      const nodes = matchAll(rootNode, "C1>C3");
+
+      // No matcch found
+      expect(nodes.length).toBe(0);
+    });
   });
 });