Fixed wrong root identification in module detection

utils/techutils/techutils.go

@@ -485,13 +485,24 @@ func getExistingRootDir(path string, workingDirectoryToIndicators map[string][]s
 	for wd := range workingDirectoryToIndicators {
 		parentWd := filepath.Dir(wd)
 		parentRoot := filepath.Dir(root)
-		if parentRoot != parentWd && strings.HasPrefix(root, wd) {
+		if parentRoot != parentWd && hasCompletePathPrefix(root, wd) {
 			root = wd
 		}
 	}
 	return
 }
 
+func hasCompletePathPrefix(root, wd string) bool {
+	if strings.HasPrefix(root, wd) {
+		amountOfSkippedChars := len(wd)
+		partialRoot := root[amountOfSkippedChars:]
+		if partialRoot == "" || partialRoot[0] == filepath.Separator {
+			return true
+		}
+	}
+	return false
+}
+
 // DetectedTechnologiesToSlice returns a string slice that includes all the names of the detected technologies.
 func DetectedTechnologiesToSlice(detected map[Technology]map[string][]string) []string {
 	keys := make([]string, 0, len(detected))

utils/techutils/techutils_test.go

@@ -277,6 +277,17 @@ func TestGetExistingRootDir(t *testing.T) {
 			},
 			expected: "directory",
 		},
+		{
+			// This test case checks that we capture the correct root when sub is a prefix to root, but not an actual path prefix
+			// Example: root = "dir1/dir2", sub = "dir" -> root indeed starts with 'dir' but 'dir' is not a path prefix to the root
+			name: "match root when root's letters start with sub's letters",
+			path: filepath.Join("dir3", "dir"),
+			workingDirectoryToIndicators: map[string][]string{
+				filepath.Join("dir3", "dir"): {filepath.Join("dir3", "dir", "package.json")},
+				"dir":                        {filepath.Join("dir", "package.json")},
+			},
+			expected: filepath.Join("dir3", "dir"),
+		},
 	}
 	for _, test := range tests {
 		t.Run(test.name, func(t *testing.T) {