package proto

import "testing"

// A version is newer only when it is a higher dotted number: never for the
// same, an older one, or what is not a version at all.
func TestVersionNewer(t *testing.T) {
	for _, c := range []struct {
		a, b string
		want bool
	}{
		{"0.2.5", "0.2.4", true},
		{"0.2.10", "0.2.9", true},
		{"0.3.0", "0.2.99", true},
		{"1.0", "0.9.9", true},
		{"0.2.4", "0.2.4", false},
		{"0.2.3", "0.2.4", false},
		{"0.2", "0.2.0", false},
		{"v0.2.5", "0.2.4", true},
		{"", "0.2.4", false},
		{"dev", "0.2.4", false},
		{"0.2.5", "dev", false},
		{"0.2.5", "", false},
		{"0.2.5-rc1", "0.2.4", true},
	} {
		if got := VersionNewer(c.a, c.b); got != c.want {
			t.Errorf("VersionNewer(%q, %q) = %v, want %v", c.a, c.b, got, c.want)
		}
	}
}