// Copyright (c) 2024-2026 Tencent Zhuque Lab. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package websocket

import (
	"testing"
)

func TestParseVersion(t *testing.T) {
	tests := []struct {
		input    string
		expected [3]int
	}{
		{"v4.1.10", [3]int{4, 1, 10}},
		{"v4.1.9", [3]int{4, 1, 9}},
		{"v1.0.0", [3]int{1, 0, 0}},
		{"4.1.10", [3]int{4, 1, 10}}, // without "v" prefix
		{"v0.0.1", [3]int{0, 0, 1}},
	}

	for _, tt := range tests {
		t.Run(tt.input, func(t *testing.T) {
			result := parseVersion(tt.input)
			if result != tt.expected {
				t.Errorf("parseVersion(%q) = %v, want %v", tt.input, result, tt.expected)
			}
		})
	}
}

func TestCompareVersions(t *testing.T) {
	tests := []struct {
		name     string
		a        string
		b        string
		expected bool // true if b > a
	}{
		{"patch upgrade", "v4.1.9", "v4.1.10", true},
		{"minor upgrade", "v4.1.10", "v4.2.0", true},
		{"major upgrade", "v4.1.10", "v5.0.0", true},
		{"same version", "v4.1.10", "v4.1.10", false},
		{"downgrade patch", "v4.1.10", "v4.1.9", false},
		{"downgrade minor", "v4.2.0", "v4.1.10", false},
		{"downgrade major", "v5.0.0", "v4.1.10", false},
		{"large patch numbers", "v4.1.99", "v4.1.100", true},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			result := compareVersions(tt.a, tt.b)
			if result != tt.expected {
				t.Errorf("compareVersions(%q, %q) = %v, want %v", tt.a, tt.b, result, tt.expected)
			}
		})
	}
}