feat: [CODE-2943]: Add 'Depth' method in 'paths' package (#3211)

app/paths/paths.go

@@ -105,12 +105,23 @@ func Concatenate(paths ...string) string {
 }
 
 // Segments returns all segments of the path
-// e.g. /space1/space2/space3 -> [space1, space2, space3].
+// e.g. space1/space2/space3 -> [space1, space2, space3].
 func Segments(path string) []string {
 	path = strings.Trim(path, types.PathSeparatorAsString)
 	return strings.Split(path, types.PathSeparatorAsString)
 }
 
+// Depth returns the depth of the path.
+// e.g. space1/space2 -> 2.
+func Depth(path string) int {
+	path = strings.Trim(path, types.PathSeparatorAsString)
+	if len(path) == 0 {
+		return 0
+	}
+
+	return strings.Count(path, types.PathSeparatorAsString) + 1
+}
+
 // IsAncesterOf returns true iff 'path' is an ancestor of 'other' or they are the same.
 // e.g. other = path(/.*).
 func IsAncesterOf(path string, other string) bool {

app/paths/paths_test.go

@@ -139,3 +139,40 @@ func Test_Concatenate(t *testing.T) {
 		assert.Equal(t, tt.want, got, "path isn't matching for %v", tt.in)
 	}
 }
+
+func Test_Depth(t *testing.T) {
+	type testCase struct {
+		in   string
+		want int
+	}
+	tests := []testCase{
+		{
+			in:   "",
+			want: 0,
+		},
+		{
+			in:   "/",
+			want: 0,
+		},
+		{
+			in:   "a",
+			want: 1,
+		},
+		{
+			in:   "/a/",
+			want: 1,
+		},
+		{
+			in:   "a/b",
+			want: 2,
+		},
+		{
+			in:   "/a/b/c/d/e/f/",
+			want: 6,
+		},
+	}
+	for _, tt := range tests {
+		got := Depth(tt.in)
+		assert.Equal(t, tt.want, got, "depth isn't matching for %q", tt.in)
+	}
+}