package version

import "testing"

func TestResolve(t *testing.T) {
	tests := []struct {
		tag, commit, want string
	}{
		{"v1.0.0", "abc1234", "v1.0.0"},
		{"1.2.3", "abc1234", "1.2.3"},
		{"v1.0.0-rc.1", "abc1234", "v1.0.0-rc.1"},
		{"release-candidate", "abc1234", "abc1234"},
		{"latest", "abc1234", "abc1234"},
		{"v1.2", "abc1234", "abc1234"},
		{"", "abc1234", "abc1234"},
		{"", "", "dev"},
	}
	for _, tc := range tests {
		Version = tc.tag
		Commit = tc.commit
		if got := String(); got != tc.want {
			t.Errorf("resolve(tag=%q, commit=%q) = %q; want %q", tc.tag, tc.commit, got, tc.want)
		}
	}
}

func TestIsSemverTag(t *testing.T) {
	ok := []string{"v1.0.0", "1.2.3", "v0.0.1", "2.10.99", "v1.0.0-rc.1"}
	bad := []string{"", "latest", "release-1", "v1.2", "1.2", "abc1234", "v1.2.3.4"}
	for _, tag := range ok {
		if !isSemverTag(tag) {
			t.Errorf("isSemverTag(%q) = false; want true", tag)
		}
	}
	for _, tag := range bad {
		if isSemverTag(tag) {
			t.Errorf("isSemverTag(%q) = true; want false", tag)
		}
	}
}

func TestParts(t *testing.T) {
	tests := []struct {
		tag               string
		major, minor, rev int
	}{
		{"v1.2.3", 1, 2, 3},
		{"1.2.3", 1, 2, 3},
		{"v1.2.3-rc1", 1, 2, 3},
		{"", 0, 0, 0},
		{"abc1234", 0, 0, 0},
		{"1.2", 0, 0, 0},
	}
	for _, tc := range tests {
		Version = tc.tag
		major, minor, rev := Parts()
		if major != tc.major || minor != tc.minor || rev != tc.rev {
			t.Errorf("Parts(%q) = %d,%d,%d; want %d,%d,%d", tc.tag, major, minor, rev, tc.major, tc.minor, tc.rev)
		}
	}
}