From 391868233938cc965815c89dd2b76928cb4158ab Mon Sep 17 00:00:00 2001
From: Aadhavan Srinivasan <aadhavan@twomorecents.org>
Date: Tue, 28 Jan 2025 15:52:11 -0500
Subject: [PATCH] Added more tests

---
 re_test.go | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/re_test.go b/re_test.go
index 06189ce..749a999 100644
--- a/re_test.go
+++ b/re_test.go
@@ -430,6 +430,22 @@ var reTests = []struct {
 	{`\0009`, []ReFlag{RE_CASE_INSENSITIVE}, "\x009", []Group{{0, 2}}},
 	{`\141`, []ReFlag{RE_CASE_INSENSITIVE}, "A", []Group{{0, 1}}},
 
+	{`a[-]?c`, []ReFlag{RE_CASE_INSENSITIVE}, `AC`, []Group{{0, 2}}},
+
+	{`a(?!b).`, nil, `abad`, []Group{{2, 4}}},
+	{`a(?=d).`, nil, `abad`, []Group{{2, 4}}},
+	{`a(?=c|d).`, nil, `abad`, []Group{{2, 4}}},
+
+	{`^abc`, nil, "jkl\nabc\nxyz", []Group{}},
+	{`^abc`, []ReFlag{RE_MULTILINE}, "jkl\nabc\nxyz", []Group{{4, 7}}},
+	{`abc$`, nil, "jkl\nabc\nxyz", []Group{}},
+	{`abc$`, []ReFlag{RE_MULTILINE}, "jkl\nabc\nxyz", []Group{{4, 7}}},
+	{`abc$`, []ReFlag{RE_MULTILINE}, "jkl\n123abc\nxyz", []Group{{7, 10}}},
+	{`^`, nil, "jkl\n123abc\nxyz", []Group{{0, 0}}},
+	{`^`, []ReFlag{RE_MULTILINE}, "jkl\n123abc\nxyz", []Group{{0, 0}, {4, 4}, {11, 11}}},
+	{`$`, nil, "jkl\n123abc\nxyz", []Group{{14, 14}}},
+	{`$`, []ReFlag{RE_MULTILINE}, "jkl\n123abc\nxyz", []Group{{3, 3}, {10, 10}, {14, 14}}},
+
 	// Todo - add numeric range tests
 }
 
@@ -563,6 +579,15 @@ var groupTests = []struct {
 	{`([abc])*d`, []ReFlag{RE_CASE_INSENSITIVE}, `ABBBCD`, []Match{[]Group{{0, 6}, {4, 5}}}},
 	{`([abc])*bcd`, []ReFlag{RE_CASE_INSENSITIVE}, `ABCD`, []Match{[]Group{{0, 4}, {0, 1}}}},
 	{`^(ab|cd)e`, []ReFlag{RE_CASE_INSENSITIVE}, `ABCDE`, []Match{}},
+
+	{`(?:(?:(?:(?:(?:(?:a))))))`, nil, `a`, []Match{[]Group{{0, 1}}}},
+	{`a(?:b|c|d)(.)`, nil, `ace`, []Match{[]Group{{0, 3}, {2, 3}}}},
+	{`a(?:b|c|d)*(.)`, nil, `ace`, []Match{[]Group{{0, 3}, {2, 3}}}},
+	{`a(?:b|c|d)+(.)`, nil, `ace`, []Match{[]Group{{0, 3}, {2, 3}}}},
+	{`a(?:b|(c|e){1,2}?|d)+?(.)`, nil, `ace`, []Match{[]Group{{0, 3}, {1, 2}, {2, 3}}}},
+	{`(?<!-):(.*)(?<!-):`, nil, `a:bc-:de:f`, []Match{[]Group{{1, 9}, {2, 8}}}},
+	{`(?<!\\):(.*)(?<!\\):`, nil, `a:bc\:de:f`, []Match{[]Group{{1, 9}, {2, 8}}}},
+	{`(?<!\?)'(.*)(?<!\?)'`, nil, `a'bc?'de'f`, []Match{[]Group{{1, 9}, {2, 8}}}},
 }
 
 func TestFindAllMatches(t *testing.T) {