From 460aeb76417de8a0aee4b411793eceab92f77617 Mon Sep 17 00:00:00 2001
From: tris203 <admin@snappeh.com>
Date: Sun, 5 May 2024 21:20:10 +0100
Subject: [PATCH] tests: add tests

---
 .../precognition/horizontal_motions_spec.lua  | 46 +++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/tests/precognition/horizontal_motions_spec.lua b/tests/precognition/horizontal_motions_spec.lua
index de992f0..63b1656 100644
--- a/tests/precognition/horizontal_motions_spec.lua
+++ b/tests/precognition/horizontal_motions_spec.lua
@@ -144,6 +144,52 @@ describe("boundaries", function()
     end)
 end)
 
+
+describe("matching pair tests", function()
+    it("if cursor is over a bracket it can find the pair", function()
+        eq(9, hm.matching_bracket("abc (efg)", 5, 9))
+        eq(0, hm.matching_bracket("abc (efg)", 6, 9))
+        eq(0, hm.matching_bracket("abc (efg)", 7, 9))
+        eq(0, hm.matching_bracket("abc (efg)", 8, 9))
+        eq(5, hm.matching_bracket("abc (efg)", 9, 9))
+    end)
+
+    it("if cursor is over a square bracket it can find the pair", function()
+        eq(9, hm.matching_bracket("abc [efg]", 5, 9))
+        eq(0, hm.matching_bracket("abc [efg]", 6, 9))
+        eq(0, hm.matching_bracket("abc [efg]", 7, 9))
+        eq(0, hm.matching_bracket("abc [efg]", 8, 9))
+        eq(5, hm.matching_bracket("abc [efg]", 9, 9))
+    end)
+
+    it("if cursor is over a curly bracket it can find the pair", function()
+        eq(9, hm.matching_bracket("abc {efg}", 5, 9))
+        eq(0, hm.matching_bracket("abc {efg}", 6, 9))
+        eq(0, hm.matching_bracket("abc {efg}", 7, 9))
+        eq(0, hm.matching_bracket("abc {efg}", 8, 9))
+        eq(5, hm.matching_bracket("abc {efg}", 9, 9))
+    end)
+
+    it("nested brackets find the correct pair", function()
+        eq(19, hm.matching_bracket("abc (efg [hij] klm)", 5, 19))
+        eq(0, hm.matching_bracket("abc (efg [hij] klm)", 6, 19))
+        eq(14, hm.matching_bracket("abc (efg [hij] klm)", 10, 19))
+        eq(10, hm.matching_bracket("abc (efg [hij] klm)", 14, 19))
+        eq(0, hm.matching_bracket("abc (efg [hij] klm)", 15, 19))
+        eq(5, hm.matching_bracket("abc (efg [hij] klm)", 19, 19))
+    end)
+
+    it ("nested brackets of the same type find the correct pair", function()
+    eq(19, hm.matching_bracket("abc (efg (hij) klm)", 5, 19))
+    eq(0, hm.matching_bracket("abc (efg (hij) klm)", 6, 19))
+    eq(14, hm.matching_bracket("abc (efg (hij) klm)", 10, 19))
+    eq(10, hm.matching_bracket("abc (efg (hij) klm)", 14, 19))
+    eq(0, hm.matching_bracket("abc (efg (hij) klm)", 15, 19))
+    eq(5, hm.matching_bracket("abc (efg (hij) klm)", 19, 19))
+    end)
+
+end)
+
 describe("edge case", function()
     it("can handle empty strings", function()
         eq(0, hm.next_word_boundary("", 1, 0))