package upgrade

import "testing"

func TestCompare(t *testing.T) {
	cases := []struct {
		a, b string
		want int
	}{
		{"1.0.0", "1.0.0", 0},
		{"v1.0.0", "1.0.0", 0},
		{"1.0.0", "1.0.1", -1},
		{"1.2.0", "1.10.0", -1},
		{"1.0.9", "1.0.10", -1},
		{"2.0.0", "1.9.9", 1},
		{"1.0.0-rc1", "1.0.0", -1},
		{"1.0", "1.0.0", 0},
	}
	for _, c := range cases {
		if got := Compare(c.a, c.b); got != c.want {
			t.Errorf("Compare(%q,%q)=%d 期望 %d", c.a, c.b, got, c.want)
		}
	}
}

func TestIsDev(t *testing.T) {
	for _, v := range []string{"", "dev", "1.0.0-dev", "1.0.0-dirty"} {
		if !(Info{Version: v}).IsDev() {
			t.Errorf("%q 应识别为开发版", v)
		}
	}
	for _, v := range []string{"1.0.0", "v1.2.3", "2.0.0-rc1"} {
		if (Info{Version: v}).IsDev() {
			t.Errorf("%q 不应识别为开发版", v)
		}
	}
}

func TestValidVersion(t *testing.T) {
	for _, v := range []string{"1", "1.2", "1.2.3", "v1.2.3", "0.0.1"} {
		if !ValidVersion(v) {
			t.Errorf("%q 应为合法版本", v)
		}
	}
	for _, v := range []string{"", "abc", "v"} {
		if ValidVersion(v) {
			t.Errorf("%q 应为非法版本", v)
		}
	}
}

func TestPickRelease(t *testing.T) {
	m := &Manifest{Latest: "1.1.0", Releases: []Release{
		{Version: "1.1.0", OS: "plan9", Arch: "mips", URL: "https://x/other"},
		{Version: "1.0.0", URL: "https://x/all"},
	}}
	if r := pickRelease(m, "1.0.0"); r == nil || r.URL != "https://x/all" {
		t.Errorf("未标注平台的版本应可选，实际 %+v", r)
	}
	if r := pickRelease(m, "1.1.0"); r != nil {
		t.Error("平台不匹配不应被选中")
	}
	if r := pickRelease(m, "9.9.9"); r != nil {
		t.Error("清单外的版本不应被选中")
	}
}