package debian

import (
	. "launchpad.net/gocheck"
)

type VersionSuite struct {
	stanza Stanza
}

var _ = Suite(&VersionSuite{})

func (s *VersionSuite) TestParseVersion(c *C) {
	e, u, d := parseVersion("1.3.4")
	c.Check([]string{e, u, d}, DeepEquals, []string{"", "1.3.4", ""})

	e, u, d = parseVersion("4:1.3:4")
	c.Check([]string{e, u, d}, DeepEquals, []string{"4", "1.3:4", ""})

	e, u, d = parseVersion("1.3.4-1")
	c.Check([]string{e, u, d}, DeepEquals, []string{"", "1.3.4", "1"})

	e, u, d = parseVersion("1.3-pre4-1")
	c.Check([]string{e, u, d}, DeepEquals, []string{"", "1.3-pre4", "1"})

	e, u, d = parseVersion("4:1.3-pre4-1")
	c.Check([]string{e, u, d}, DeepEquals, []string{"4", "1.3-pre4", "1"})
}

func (s *VersionSuite) TestCompareLexicographic(c *C) {
	c.Check(compareLexicographic("", ""), Equals, 0)
	c.Check(compareLexicographic("pre", "pre"), Equals, 0)

	c.Check(compareLexicographic("pr", "pre"), Equals, -1)
	c.Check(compareLexicographic("pre", "pr"), Equals, 1)

	c.Check(compareLexicographic("pra", "prb"), Equals, -1)
	c.Check(compareLexicographic("prb", "pra"), Equals, 1)

	c.Check(compareLexicographic("prx", "pr+"), Equals, -1)
	c.Check(compareLexicographic("pr+", "prx"), Equals, 1)

	c.Check(compareLexicographic("pr~", "pra"), Equals, -1)
	c.Check(compareLexicographic("pra", "pr~"), Equals, 1)

	c.Check(compareLexicographic("~~", "~~a"), Equals, -1)
	c.Check(compareLexicographic("~~a", "~"), Equals, -1)
	c.Check(compareLexicographic("~", ""), Equals, -1)

	c.Check(compareLexicographic("~~a", "~~"), Equals, 1)
	c.Check(compareLexicographic("~", "~~a"), Equals, 1)
	c.Check(compareLexicographic("", "~"), Equals, 1)
}

func (s *VersionSuite) TestCompareVersionPart(c *C) {
	c.Check(compareVersionPart("", ""), Equals, 0)
	c.Check(compareVersionPart("pre", "pre"), Equals, 0)
	c.Check(compareVersionPart("12", "12"), Equals, 0)
	c.Check(compareVersionPart("1.3.5", "1.3.5"), Equals, 0)
	c.Check(compareVersionPart("1.3.5-pre1", "1.3.5-pre1"), Equals, 0)

	c.Check(compareVersionPart("1.0~beta1~svn1245", "1.0~beta1"), Equals, -1)
	c.Check(compareVersionPart("1.0~beta1", "1.0"), Equals, -1)

	c.Check(compareVersionPart("1.0~beta1", "1.0~beta1~svn1245"), Equals, 1)
	c.Check(compareVersionPart("1.0", "1.0~beta1"), Equals, 1)

	c.Check(compareVersionPart("1.pr", "1.pre"), Equals, -1)
	c.Check(compareVersionPart("1.pre", "1.pr"), Equals, 1)

	c.Check(compareVersionPart("1.pra", "1.prb"), Equals, -1)
	c.Check(compareVersionPart("1.prb", "1.pra"), Equals, 1)

	c.Check(compareVersionPart("3.prx", "3.pr+"), Equals, -1)
	c.Check(compareVersionPart("3.pr+", "3.prx"), Equals, 1)

	c.Check(compareVersionPart("3.pr~", "3.pra"), Equals, -1)
	c.Check(compareVersionPart("3.pra", "3.pr~"), Equals, 1)

	c.Check(compareVersionPart("2~~", "2~~a"), Equals, -1)
	c.Check(compareVersionPart("2~~a", "2~"), Equals, -1)
	c.Check(compareVersionPart("2~", "2"), Equals, -1)

	c.Check(compareVersionPart("2~~a", "2~~"), Equals, 1)
	c.Check(compareVersionPart("2~", "2~~a"), Equals, 1)
	c.Check(compareVersionPart("2", "2~"), Equals, 1)
}

func (s *VersionSuite) TestCompareVersions(c *C) {
	c.Check(CompareVersions("3:1.0~beta1~svn1245-1", "3:1.0~beta1~svn1245-1"), Equals, 0)

	c.Check(CompareVersions("1:1.0~beta1~svn1245-1", "3:1.0~beta1~svn1245-1"), Equals, -1)
	c.Check(CompareVersions("1:1.0~beta1~svn1245-1", "1.0~beta1~svn1245-1"), Equals, 1)
	c.Check(CompareVersions("1.0~beta1~svn1245-1", "1.0~beta1~svn1245-2"), Equals, -1)
	c.Check(CompareVersions("3:1.0~beta1~svn1245-1", "3:1.0~beta1-1"), Equals, -1)

	c.Check(CompareVersions("1.0~beta1~svn1245", "1.0~beta1"), Equals, -1)
	c.Check(CompareVersions("1.0~beta1", "1.0"), Equals, -1)
}