From 4a6f63e58f3bf29fef68f5b889ddd50fb522405e Mon Sep 17 00:00:00 2001
From: krau <71133316+krau@users.noreply.github.com>
Date: Sun, 9 Nov 2025 11:48:29 +0800
Subject: [PATCH] test: add tests for string utility functions

---
 common/utils/strutil/string_test.go | 148 ++++++++++++++++++++++++++++
 1 file changed, 148 insertions(+)
 create mode 100644 common/utils/strutil/string_test.go

diff --git a/common/utils/strutil/string_test.go b/common/utils/strutil/string_test.go
new file mode 100644
index 0000000..99c096a
--- /dev/null
+++ b/common/utils/strutil/string_test.go
@@ -0,0 +1,148 @@
+package strutil_test
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/krau/SaveAny-Bot/common/utils/strutil"
+)
+
+func TestExtractTagsFromText(t *testing.T) {
+	tests := []struct {
+		text     string
+		expected []string
+	}{
+		{
+			text: `初音ミクHappy 16th Birthday -Dear Creators-
+			✨エンドイラスト公開！✨
+			https://piapro.net/miku16thbd/
+			#初音ミク #miku16th`,
+			expected: []string{"初音ミク", "miku16th"},
+		},
+		{
+			text: `ひっつきむし
+			#創作百合`,
+			expected: []string{"創作百合"},
+		},
+		{
+			text:     `#創作百合 #原创`,
+			expected: []string{"創作百合", "原创"},
+		},
+		{
+			text:     `プラニャ　#ブルアカ`,
+			expected: []string{"ブルアカ"},
+		},
+		{
+			text:     `原神是一款#开放世界#冒险游戏，由中国著名游戏公司#miHoYo开发。`,
+			expected: []string{},
+		},
+	}
+
+	for _, test := range tests {
+		result := strutil.ExtractTagsFromText(test.text)
+		if !reflect.DeepEqual(result, test.expected) {
+			t.Fatalf("ExtractTagsFromText(%s) = %v, expected %v", test.text, result, test.expected)
+		}
+	}
+}
+
+func TestParseIntStrRange(t *testing.T) {
+	tests := []struct {
+		name    string
+		input   string
+		sep     string
+		wantMin int64
+		wantMax int64
+		wantErr bool
+	}{
+		{
+			name:    "normal range",
+			input:   "10-20",
+			sep:     "-",
+			wantMin: 10,
+			wantMax: 20,
+		},
+		{
+			name:    "reverse order",
+			input:   "30 - 10",
+			sep:     "-",
+			wantMin: 10,
+			wantMax: 30,
+		},
+		{
+			name:    "invalid format",
+			input:   "10",
+			sep:     "-",
+			wantErr: true,
+		},
+		{
+			name:    "invalid number",
+			input:   "a-b",
+			sep:     "-",
+			wantErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			min, max, err := strutil.ParseIntStrRange(tt.input, tt.sep)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("ParseIntStrRange(%q) error = %v, wantErr %v", tt.input, err, tt.wantErr)
+				return
+			}
+			if !tt.wantErr {
+				if min != tt.wantMin || max != tt.wantMax {
+					t.Errorf("ParseIntStrRange(%q) = (%d, %d), want (%d, %d)", tt.input, min, max, tt.wantMin, tt.wantMax)
+				}
+			}
+		})
+	}
+}
+
+func TestParseArgsRespectQuotes(t *testing.T) {
+	tests := []struct {
+		name  string
+		input string
+		want  []string
+	}{
+		{
+			name:  "simple split",
+			input: `/rule add FILENAME-REGEX (?i)\.(mp4|mkv)$ "我的 Alist" /视频`,
+			want:  []string{"/rule", "add", "FILENAME-REGEX", "(?i)\\.(mp4|mkv)$", "我的 Alist", "/视频"},
+		},
+		{
+			name:  "escaped quotes",
+			input: `/rule add "My \"Awesome\" Folder"`,
+			want:  []string{"/rule", "add", `My "Awesome" Folder`},
+		},
+		{
+			name:  "escaped backslash",
+			input: `/cmd "C:\\Users\\Admin" test`,
+			want:  []string{"/cmd", `C:\Users\Admin`, "test"},
+		},
+		{
+			name:  "multiple quoted parts",
+			input: `"Hello World" "你好 世界"`,
+			want:  []string{"Hello World", "你好 世界"},
+		},
+		{
+			name:  "unquoted words",
+			input: "a b c",
+			want:  []string{"a", "b", "c"},
+		},
+		{
+			name:  "mixed quotes and plain",
+			input: `cmd "quoted arg" plain`,
+			want:  []string{"cmd", "quoted arg", "plain"},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := strutil.ParseArgsRespectQuotes(tt.input)
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("ParseArgsRespectQuotes(%q) = %#v, want %#v", tt.input, got, tt.want)
+			}
+		})
+	}
+}