Add test and allowance for gitlab to also be case insensitive

cmd/package_managers.go

@@ -45,6 +45,8 @@ func makeGithubRepo(urlAndPathParts []string) string {
 	return fmt.Sprintf("https://github.com/%s/%s", userOrOrg, repoName)
 }
 
+// Both GitHub and GitLab are case insensitive (and thus we lowercase those URLS)
+// however generic URLs are indeed case sensitive!
 var pypiMatchers = []func(string) string{
 	func(url string) string {
 		return makeGithubRepo(githubDomainRegexp.FindStringSubmatch(url))
@@ -57,7 +59,7 @@ var pypiMatchers = []func(string) string{
 	func(url string) string {
 		match := gitlabDomainRegexp.FindStringSubmatch(url)
 		if len(match) >= 3 {
-			return fmt.Sprintf("https://gitlab.com/%s/%s", match[1], match[2])
+			return strings.ToLower(fmt.Sprintf("https://gitlab.com/%s/%s", match[1], match[2]))
 		}
 		return ""
 	},

cmd/package_managers_test.go

@@ -236,6 +236,23 @@ func Test_findGitRepositoryInPYPIResponse(t *testing.T) {
     }
   }
 }
+`,
+			want:       "https://github.com/htaslan/color",
+			wantErrStr: "",
+		},
+		{
+			name: "findGitRepositoryInPYPIResponse_dedup_gitlab",
+			partialPYPIResponse: `
+ {
+  "info": {
+    "platform": "UNKNOWN",
+    "project_url": "foo",
+    "project_urls": {
+      "RandomKey": "https://gitlab.com/htaslan/color/",
+      "raNdoMkEY": "https://gitlab.com/hTASLan/color"
+    }
+  }
+}
 `,
 			want:       "https://github.com/htaslan/color",
 			wantErrStr: "",