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// Copyright 2013 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.
package names_test
import (
"fmt"
gc "gopkg.in/check.v1"
"github.com/juju/names/v4"
)
type unitSuite struct{}
var _ = gc.Suite(&unitSuite{})
func (s *unitSuite) TestUnitTag(c *gc.C) {
c.Assert(names.NewUnitTag("wordpress/2").String(), gc.Equals, "unit-wordpress-2")
c.Assert(names.NewUnitTag("foo-bar/2").String(), gc.Equals, "unit-foo-bar-2")
}
var unitNameTests = []struct {
pattern string
valid bool
application string
number int
}{
{pattern: "wordpress/42", valid: true, application: "wordpress", number: 42},
{pattern: "rabbitmq-server/123", valid: true, application: "rabbitmq-server", number: 123},
{pattern: "foo", valid: false},
{pattern: "foo/", valid: false},
{pattern: "bar/foo", valid: false},
{pattern: "20/20", valid: false},
{pattern: "foo-55", valid: false},
{pattern: "foo-bar/123", valid: true, application: "foo-bar", number: 123},
{pattern: "foo-bar/123/", valid: false},
{pattern: "foo-bar/123-not", valid: false},
}
func (s *unitSuite) TestUnitNameFormats(c *gc.C) {
for i, test := range unitNameTests {
c.Logf("test %d: %q", i, test.pattern)
c.Assert(names.IsValidUnit(test.pattern), gc.Equals, test.valid)
}
}
func (s *unitSuite) TestInvalidUnitTagFormats(c *gc.C) {
for i, test := range unitNameTests {
if !test.valid {
c.Logf("test %d: %q", i, test.pattern)
expect := fmt.Sprintf("%q is not a valid unit name", test.pattern)
testUnitTag := func() { names.NewUnitTag(test.pattern) }
c.Assert(testUnitTag, gc.PanicMatches, expect)
}
}
}
func (s *unitSuite) TestNumber(c *gc.C) {
u := names.UnitTag{}
c.Assert(u.Number(), gc.Equals, 0)
u = names.NewUnitTag("foo-t4/5")
c.Assert(u.Number(), gc.Equals, 5)
}
func (s *applicationSuite) TestUnitApplication(c *gc.C) {
for i, test := range unitNameTests {
c.Logf("test %d: %q", i, test.pattern)
if !test.valid {
expect := fmt.Sprintf("%q is not a valid unit name", test.pattern)
_, err := names.UnitApplication(test.pattern)
c.Assert(err, gc.ErrorMatches, expect)
} else {
result, err := names.UnitApplication(test.pattern)
c.Assert(err, gc.IsNil)
c.Assert(result, gc.Equals, test.application)
}
}
}
func (s *applicationSuite) TestUnitNumber(c *gc.C) {
for i, test := range unitNameTests {
c.Logf("test %d: %q", i, test.pattern)
if !test.valid {
expect := fmt.Sprintf("%q is not a valid unit name", test.pattern)
_, err := names.UnitNumber(test.pattern)
c.Assert(err, gc.ErrorMatches, expect)
} else {
result, err := names.UnitNumber(test.pattern)
c.Assert(err, gc.IsNil)
c.Assert(result, gc.Equals, test.number)
}
}
}
var parseUnitTagTests = []struct {
tag string
expected names.Tag
err error
}{{
tag: "",
err: names.InvalidTagError("", ""),
}, {
tag: "unit-dave-0",
expected: names.NewUnitTag("dave/0"),
}, {
tag: "unit-foo-bar-0",
expected: names.NewUnitTag("foo-bar/0"),
}, {
tag: "dave",
err: names.InvalidTagError("dave", ""),
}, {
tag: "unit-dave",
err: names.InvalidTagError("unit-dave", names.UnitTagKind), // not a valid unit name either
}, {
tag: "application-dave",
err: names.InvalidTagError("application-dave", names.UnitTagKind),
}}
func (s *unitSuite) TestParseUnitTag(c *gc.C) {
for i, t := range parseUnitTagTests {
c.Logf("test %d: %s", i, t.tag)
got, err := names.ParseUnitTag(t.tag)
if err != nil || t.err != nil {
c.Check(err, gc.DeepEquals, t.err)
continue
}
c.Check(got, gc.FitsTypeOf, t.expected)
c.Check(got, gc.Equals, t.expected)
}
}
var unitTagShortenedStringTests = []struct {
unitName string
maxLength int
errorOutput string
expectedName string
}{{
unitName: "foobar/0",
maxLength: 15,
errorOutput: "max length must be at least 21, not 15",
}, {
unitName: "foobar/0",
maxLength: 30,
expectedName: "unit-foobar-0",
}, {
unitName: "veryveryverylonglongone/0",
maxLength: 25,
expectedName: "unit-veryverf4fa59c6-0",
}, {
unitName: "veryveryverylonglongone/20",
maxLength: 25,
expectedName: "unit-veryverf4fa59c6-20",
}, {
unitName: "veryveryverylonglongone/300",
maxLength: 25,
expectedName: "unit-veryverf4fa59c6-300",
}, {
unitName: "veryveryverylonglongone/4000",
maxLength: 25,
expectedName: "unit-veryverf4fa59c6-4000",
}, {
unitName: "veryveryverylonglongone/50000",
maxLength: 25,
expectedName: "unit-veryvef4fa59c6-50000",
}}
func (s *unitSuite) TestUnitTagShortenedString(c *gc.C) {
for i, t := range unitTagShortenedStringTests {
c.Logf("test %d: %s %d", i, t.unitName, t.maxLength)
tag := names.NewUnitTag(t.unitName)
tagString, err := tag.ShortenedString(t.maxLength)
if t.errorOutput != "" {
c.Check(tagString, gc.Equals, "")
c.Check(err, gc.ErrorMatches, t.errorOutput)
} else {
c.Check(tagString, gc.Equals, t.expectedName)
c.Check(err, gc.IsNil)
}
}
}
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