from beam_assert import raises
from semver import SemVer, SemVerError

def test_parse_basic():
    v = SemVer.parse("1.2.3")
    assert (v.major, v.minor, v.patch) == (1,2,3)
    assert v.pre == () and v.build == ()

def test_str_roundtrip():
    for s in ["1.2.3", "1.2.3-rc.1", "1.2.3+build.5", "1.2.3-rc.1+build.5", "0.0.0"]:
        assert str(SemVer.parse(s)) == s

def test_prerelease_order():
    assert SemVer.parse("1.0.0-alpha") < SemVer.parse("1.0.0-alpha.1")
    assert SemVer.parse("1.0.0-alpha.1") < SemVer.parse("1.0.0-alpha.beta")
    assert SemVer.parse("1.0.0-alpha.beta") < SemVer.parse("1.0.0-beta")
    assert SemVer.parse("1.0.0-beta") < SemVer.parse("1.0.0-beta.2")
    assert SemVer.parse("1.0.0-beta.2") < SemVer.parse("1.0.0-beta.11")
    assert SemVer.parse("1.0.0-beta.11") < SemVer.parse("1.0.0-rc.1")
    assert SemVer.parse("1.0.0-rc.1") < SemVer.parse("1.0.0")

def test_numeric_vs_string_id():
    # numeric identifiers always have lower precedence than non-numeric
    assert SemVer.parse("1.0.0-1") < SemVer.parse("1.0.0-alpha")

def test_build_ignored_equality():
    assert SemVer.parse("1.0.0+foo") == SemVer.parse("1.0.0+bar")
    assert hash(SemVer.parse("1.0.0+foo")) == hash(SemVer.parse("1.0.0+bar"))

def test_leading_zero_rejected():
    with raises(SemVerError):
        SemVer.parse("1.0.0-01")
    with raises(SemVerError):
        SemVer.parse("1.0.0+01")

def test_invalid():
    for s in ["", "1.2", "1.2.3.4", "a.b.c", "1.2.3-", " 1.2.3", "1.2.3 "]:
        with raises(SemVerError):
            SemVer.parse(s)

def test_bump():
    v = SemVer.parse("1.2.3-rc.1+build")
    assert str(v.bump("patch")) == "1.2.4"
    assert str(v.bump("minor")) == "1.3.0"
    assert str(v.bump("major")) == "2.0.0"

def test_sort():
    versions = ["1.0.0", "2.0.0", "1.0.0-rc.1", "1.5.0", "1.0.0-alpha"]
    parsed = sorted(SemVer.parse(x) for x in versions)
    assert [str(x) for x in parsed] == ["1.0.0-alpha", "1.0.0-rc.1", "1.0.0", "1.5.0", "2.0.0"]