package reference import ( "regexp" "strings" "testing" ) type regexpMatch struct { input string match bool subs []string } func checkRegexp(t *testing.T, r *regexp.Regexp, m regexpMatch) { matches := r.FindStringSubmatch(m.input) if m.match && matches != nil { if len(matches) != (r.NumSubexp()+1) || matches[0] != m.input { t.Fatalf("Bad match result %#v for %q", matches, m.input) } if len(matches) < (len(m.subs) + 1) { t.Errorf("Expected %d sub matches, only have %d for %q", len(m.subs), len(matches)-1, m.input) } for i := range m.subs { if m.subs[i] != matches[i+1] { t.Errorf("Unexpected submatch %d: %q, expected %q for %q", i+1, matches[i+1], m.subs[i], m.input) } } } else if m.match { t.Errorf("Expected match for %q", m.input) } else if matches != nil { t.Errorf("Unexpected match for %q", m.input) } } func TestHostRegexp(t *testing.T) { hostcases := []regexpMatch{ { input: "test.com", match: true, }, { input: "test.com:10304", match: true, }, { input: "test.com:http", match: false, }, { input: "localhost", match: true, }, { input: "localhost:8080", match: true, }, { input: "a", match: true, }, { input: "a.b", match: true, }, { input: "ab.cd.com", match: true, }, { input: "a-b.com", match: true, }, { input: "-ab.com", match: false, }, { input: "ab-.com", match: false, }, { input: "ab.c-om", match: true, }, { input: "ab.-com", match: false, }, { input: "ab.com-", match: false, }, { input: "0101.com", match: true, // TODO(dmcgowan): valid if this should be allowed }, { input: "001a.com", match: true, }, { input: "b.gbc.io:443", match: true, }, { input: "b.gbc.io", match: true, }, { input: "xn--n3h.com", // ☃.com in punycode match: true, }, } r := regexp.MustCompile(`^` + hostnameRegexp.String() + `$`) for i := range hostcases { checkRegexp(t, r, hostcases[i]) } } func TestFullNameRegexp(t *testing.T) { if anchoredNameRegexp.NumSubexp() != 2 { t.Fatalf("anchored name regexp should have two submatches: %v, %v != 2", anchoredNameRegexp, anchoredNameRegexp.NumSubexp()) } testcases := []regexpMatch{ { input: "", match: false, }, { input: "short", match: true, subs: []string{"", "short"}, }, { input: "simple/name", match: true, subs: []string{"simple", "name"}, }, { input: "library/ubuntu", match: true, subs: []string{"library", "ubuntu"}, }, { input: "docker/stevvooe/app", match: true, subs: []string{"docker", "stevvooe/app"}, }, { input: "aa/aa/aa/aa/aa/aa/aa/aa/aa/bb/bb/bb/bb/bb/bb", match: true, subs: []string{"aa", "aa/aa/aa/aa/aa/aa/aa/aa/bb/bb/bb/bb/bb/bb"}, }, { input: "aa/aa/bb/bb/bb", match: true, subs: []string{"aa", "aa/bb/bb/bb"}, }, { input: "a/a/a/a", match: true, subs: []string{"a", "a/a/a"}, }, { input: "a/a/a/a/", match: false, }, { input: "a//a/a", match: false, }, { input: "a", match: true, subs: []string{"", "a"}, }, { input: "a/aa", match: true, subs: []string{"a", "aa"}, }, { input: "a/aa/a", match: true, subs: []string{"a", "aa/a"}, }, { input: "foo.com", match: true, subs: []string{"", "foo.com"}, }, { input: "foo.com/", match: false, }, { input: "foo.com:8080/bar", match: true, subs: []string{"foo.com:8080", "bar"}, }, { input: "foo.com:http/bar", match: false, }, { input: "foo.com/bar", match: true, subs: []string{"foo.com", "bar"}, }, { input: "foo.com/bar/baz", match: true, subs: []string{"foo.com", "bar/baz"}, }, { input: "localhost:8080/bar", match: true, subs: []string{"localhost:8080", "bar"}, }, { input: "sub-dom1.foo.com/bar/baz/quux", match: true, subs: []string{"sub-dom1.foo.com", "bar/baz/quux"}, }, { input: "blog.foo.com/bar/baz", match: true, subs: []string{"blog.foo.com", "bar/baz"}, }, { input: "a^a", match: false, }, { input: "aa/asdf$$^/aa", match: false, }, { input: "asdf$$^/aa", match: false, }, { input: "aa-a/a", match: true, subs: []string{"aa-a", "a"}, }, { input: strings.Repeat("a/", 128) + "a", match: true, subs: []string{"a", strings.Repeat("a/", 127) + "a"}, }, { input: "a-/a/a/a", match: false, }, { input: "foo.com/a-/a/a", match: false, }, { input: "-foo/bar", match: false, }, { input: "foo/bar-", match: false, }, { input: "foo-/bar", match: false, }, { input: "foo/-bar", match: false, }, { input: "_foo/bar", match: false, }, { input: "foo_bar", match: true, subs: []string{"", "foo_bar"}, }, { input: "foo_bar.com", match: true, subs: []string{"", "foo_bar.com"}, }, { input: "foo_bar.com:8080", match: false, }, { input: "foo_bar.com:8080/app", match: false, }, { input: "foo.com/foo_bar", match: true, subs: []string{"foo.com", "foo_bar"}, }, { input: "____/____", match: false, }, { input: "_docker/_docker", match: false, }, { input: "docker_/docker_", match: false, }, { input: "b.gcr.io/test.example.com/my-app", match: true, subs: []string{"b.gcr.io", "test.example.com/my-app"}, }, { input: "xn--n3h.com/myimage", // ☃.com in punycode match: true, subs: []string{"xn--n3h.com", "myimage"}, }, { input: "xn--7o8h.com/myimage", // 🐳.com in punycode match: true, subs: []string{"xn--7o8h.com", "myimage"}, }, { input: "example.com/xn--7o8h.com/myimage", // 🐳.com in punycode match: true, subs: []string{"example.com", "xn--7o8h.com/myimage"}, }, { input: "example.com/some_separator__underscore/myimage", match: true, subs: []string{"example.com", "some_separator__underscore/myimage"}, }, { input: "example.com/__underscore/myimage", match: false, }, { input: "example.com/..dots/myimage", match: false, }, { input: "example.com/.dots/myimage", match: false, }, { input: "example.com/nodouble..dots/myimage", match: false, }, { input: "example.com/nodouble..dots/myimage", match: false, }, { input: "docker./docker", match: false, }, { input: ".docker/docker", match: false, }, { input: "docker-/docker", match: false, }, { input: "-docker/docker", match: false, }, { input: "do..cker/docker", match: false, }, { input: "do__cker:8080/docker", match: false, }, { input: "do__cker/docker", match: true, subs: []string{"", "do__cker/docker"}, }, { input: "b.gcr.io/test.example.com/my-app", match: true, subs: []string{"b.gcr.io", "test.example.com/my-app"}, }, { input: "registry.io/foo/project--id.module--name.ver---sion--name", match: true, subs: []string{"registry.io", "foo/project--id.module--name.ver---sion--name"}, }, } for i := range testcases { checkRegexp(t, anchoredNameRegexp, testcases[i]) } } func TestReferenceRegexp(t *testing.T) { if ReferenceRegexp.NumSubexp() != 3 { t.Fatalf("anchored name regexp should have three submatches: %v, %v != 3", ReferenceRegexp, ReferenceRegexp.NumSubexp()) } testcases := []regexpMatch{ { input: "registry.com:8080/myapp:tag", match: true, subs: []string{"registry.com:8080/myapp", "tag", ""}, }, { input: "registry.com:8080/myapp@sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912", match: true, subs: []string{"registry.com:8080/myapp", "", "sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912"}, }, { input: "registry.com:8080/myapp:tag2@sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912", match: true, subs: []string{"registry.com:8080/myapp", "tag2", "sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912"}, }, { input: "registry.com:8080/myapp@sha256:badbadbadbad", match: false, }, { input: "registry.com:8080/myapp:invalid~tag", match: false, }, { input: "bad_hostname.com:8080/myapp:tag", match: false, }, { input:// localhost treated as name, missing tag with 8080 as tag "localhost:8080@sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912", match: true, subs: []string{"localhost", "8080", "sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912"}, }, { input: "localhost:8080/name@sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912", match: true, subs: []string{"localhost:8080/name", "", "sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912"}, }, { input: "localhost:http/name@sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912", match: false, }, { // localhost will be treated as an image name without a host input: "localhost@sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912", match: true, subs: []string{"localhost", "", "sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912"}, }, { input: "registry.com:8080/myapp@bad", match: false, }, { input: "registry.com:8080/myapp@2bad", match: false, // TODO(dmcgowan): Support this as valid }, } for i := range testcases { checkRegexp(t, ReferenceRegexp, testcases[i]) } }