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iso8601_test.go
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iso8601_test.go
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package iso8601
import (
"bytes"
"encoding/json"
"testing"
"time"
)
func TestParseDuration(t *testing.T) {
good := []struct {
str string
exp time.Duration
}{
{"P1H", time.Hour},
{"P1D", time.Hour * 24},
{"P1W", time.Hour * 24 * 7},
{"P3Y6M4DT12H30M5S", 771510605000000000},
}
for i, c := range good {
got, err := ParseDuration(c.str)
if err != nil {
t.Errorf("case %d '%s' parse error: %s", i, c.str, err)
continue
}
if got.Duration != c.exp {
t.Errorf("case %d '%s' mismatch. expected: %d, got: %d", i, c.str, c.exp, got.Duration)
}
}
bad := []struct {
str, err string
}{
{"", "string '' is too short"},
{"1D4H", "missing leading 'P' duration designator"},
{"P1W17Y", "time units out of order: year before week"},
{"P25Z", "unrecognized duration character 'Z'"},
{"P99999999999999999999999999999999999999999999999999999999W", `strconv.Atoi: parsing "99999999999999999999999999999999999999999999999999999999": value out of range`},
}
for i, c := range bad {
_, err := ParseDuration(c.str)
if err == nil {
t.Errorf("case %d '%s' produced no error", i, c.str)
continue
}
if err.Error() != c.err {
t.Errorf("case %d '%s' error mismatch. expected:\n'%s'\ngot:\n'%s'", i, c.str, c.err, err)
}
}
}
func TestParseInterval(t *testing.T) {
a := mustTime("2019-10-01T00:00:00Z")
b := mustTime("2019-10-02T00:00:00Z")
d := Duration{
Duration: time.Hour * 24,
}
good := []struct {
str string
exp Interval
}{
{"P1D", Interval{nil, nil, d}},
{"2019-10-01T00:00:00Z/P1D", Interval{a, nil, d}},
{"P1D/2019-10-01T00:00:00Z", Interval{nil, a, d}},
{"2019-10-01T00:00:00Z/2019-10-02T00:00:00Z", Interval{a, b, d}},
}
for i, c := range good {
got, err := ParseInterval(c.str)
if err != nil {
t.Errorf("case %d '%s' parse error: %s", i, c.str, err)
continue
}
if c.exp.Duration.Duration != got.Duration.Duration {
t.Errorf("case %d '%s' duration.Duration mismatch. expected: %v, got: %v", i, c.str, c.exp.Duration.Duration, got.Duration.Duration)
}
}
bad := []struct {
str, err string
}{
{"", "string '' is too short"},
{"///", "too many interval designators (slashes)"},
{"/2019-10-01T00:00:00Z", "parsing start: string '' is too short"},
{"2019-10-01T00:00:00Z/", "parsing end: string '' is too short"},
{"2019-13-01T00:00:00Z/", `parsing start datestamp: parsing time "2019-13-01T00:00:00Z": month out of range`},
{"P1W/2019-13-01T00:00:00Z", `parsing end datestamp: parsing time "2019-13-01T00:00:00Z": month out of range`},
{"Pfoo/2019-10-01T00:00:00Z", `parsing start duration: strconv.Atoi: parsing "": invalid syntax`},
{"2019-10-01T00:00:00Z/Pfoo", `parsing end duration: strconv.Atoi: parsing "": invalid syntax`},
}
for i, c := range bad {
_, err := ParseInterval(c.str)
if err == nil {
t.Errorf("case %d '%s' didn't error", i, c.str)
continue
}
if c.err != err.Error() {
t.Errorf("case %d '%s' error mismatch. expected:\n'%s'\ngot:\n'%s'", i, c.str, c.err, err)
}
}
}
func TestIntervalString(t *testing.T) {
start := time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC)
end := time.Date(2001, 1, 1, 0, 0, 0, 0, time.UTC)
dur, _ := ParseDuration("P1W")
cases := []struct {
expect string
val *Interval
}{
{"2000-01-01T00:00:00Z/2001-01-01T00:00:00Z", &Interval{Start: &start, End: &end}},
{"2000-01-01T00:00:00Z/P1W", &Interval{Start: &start, Duration: dur}},
{"P1W/2001-01-01T00:00:00Z", &Interval{End: &end, Duration: dur}},
{"P1W", &Interval{Duration: dur}},
}
for i, c := range cases {
got := c.val.String()
if c.expect != got {
t.Errorf("case %d. expected: '%s', got: '%s'", i, c.expect, got)
}
}
}
func TestParseRepeatingInterval(t *testing.T) {
interval := Interval{
Start: mustTime("2019-10-01T00:00:00Z"),
End: mustTime("2019-10-02T00:00:00Z"),
Duration: Duration{
duration: "P1D",
Duration: time.Hour * 24,
},
}
good := []struct {
str string
exp RepeatingInterval
}{
{"R/2019-10-01T00:00:00Z/2019-10-02T00:00:00Z", RepeatingInterval{Repititions: -1, Interval: interval}},
{"R10/2019-10-01T00:00:00Z/2019-10-02T00:00:00Z", RepeatingInterval{Repititions: 10, Interval: interval}},
{"R02/2019-10-01T00:00:00Z/2019-10-02T00:00:00Z", RepeatingInterval{Repititions: 2, Interval: interval}},
}
for i, c := range good {
got, err := ParseRepeatingInterval(c.str)
if err != nil {
t.Errorf("case %d '%s' parse error: %s", i, c.str, err)
continue
}
if c.exp.Repititions != got.Repititions {
t.Errorf("case %d '%s' Repitition mismatch. expected: %d got: %d", i, c.str, c.exp.Repititions, got.Repititions)
}
}
bad := []struct {
str, err string
}{
{"R/", "string 'R/' is too short"},
{"R01/", "parsing interval: string '' is too short"},
{"01/", "missing leading 'R' repeating designator"},
{"Rfoo/", "unrecognized repeating interval character 'f'"},
{"R99999999999999999999999999999999999999999999999999999999/P1W", `strconv.Atoi: parsing "99999999999999999999999999999999999999999999999999999999": value out of range`},
}
for i, c := range bad {
_, err := ParseRepeatingInterval(c.str)
if err == nil {
t.Errorf("case %d '%s' didn't error", i, c.str)
continue
}
if c.err != err.Error() {
t.Errorf("case %d '%s' error mismatch. expected:\n'%s'\ngot:\n'%s'", i, c.str, c.err, err)
}
}
}
func TestRepeatingInterval(t *testing.T) {
a, err := ParseRepeatingInterval("R1/P1W")
if err != nil {
t.Fatal(err)
}
if a.NextRep().Repititions != 0 {
t.Errorf("expected single repitition next to return 0 repititions. got: %d", a.NextRep().Repititions)
}
inst := time.Date(2020, 1, 1, 0, 0, 0, 0, time.UTC)
if !a.After(inst).Equal(inst.Add(time.Hour * 24 * 7)) {
t.Errorf("expected After to add a week")
}
b, err := ParseRepeatingInterval("R/P1W")
if err != nil {
t.Fatal(err)
}
if b.NextRep().Repititions != -1 {
t.Errorf("expected unbounded repitition next to return -1 repititions. got: %d", b.NextRep().Repititions)
}
c, err := ParseRepeatingInterval("R/P1D/2000-01-02T00:00:00Z")
if err != nil {
t.Fatal(err)
}
if !c.After(inst).IsZero() {
t.Errorf("expected instant after end to return zero time")
}
d, err := ParseRepeatingInterval("R/2100-01-01T00:00:00Z/P1D")
if err != nil {
t.Fatal(err)
}
if !d.After(inst).IsZero() {
t.Errorf("expected instant before start to return zero time")
}
}
func TestRepeatingIntervalJSON(t *testing.T) {
expect := []byte(`"R/P1W"`)
ri := RepeatingInterval{}
if err := json.Unmarshal(expect, &ri); err != nil {
t.Error(err)
}
got, err := ri.MarshalJSON()
if err != nil {
t.Error(err)
}
if !bytes.Equal(expect, got) {
t.Errorf("byte mismatch. want: %s. got: %s", string(expect), string(got))
}
wrongType := []byte(`0`)
if err := json.Unmarshal(wrongType, &ri); err == nil {
t.Error("expected wrong json data type to error")
}
badString := []byte(`"wut"`)
if err := json.Unmarshal(badString, &ri); err == nil {
t.Error("expected bad input data to error")
}
}
func TestRepeatingIntervalString(t *testing.T) {
dur, _ := ParseDuration("P1W")
ivl := Interval{Duration: dur}
cases := []struct {
expect string
val RepeatingInterval
}{
{"R/P1W", RepeatingInterval{Repititions: 0, Interval: ivl}},
{"R1/P1W", RepeatingInterval{Repititions: 1, Interval: ivl}},
}
for i, c := range cases {
got := c.val.String()
if c.expect != got {
t.Errorf("case %d. expected: '%s', got: '%s'", i, c.expect, got)
}
}
}
func mustTime(s string) *time.Time {
t, err := ParseTime(s)
if err != nil {
panic(err)
}
return &t
}