time_test.go

Documentation: cuelang.org/go/pkg/time

     1  // Copyright 2019 CUE Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package time
    16  
    17  import (
    18  	"encoding/json"
    19  	"strconv"
    20  	"testing"
    21  	"time"
    22  )
    23  
    24  func TestTimestamp(t *testing.T) {
    25  	// Valid go times (for JSON marshaling) are represented as is
    26  	validTimes := []string{
    27  		// valid Go times
    28  		"null",
    29  		`"2019-01-02T15:04:05Z"`,
    30  		`"2019-01-02T15:04:05-08:00"`,
    31  		`"2019-01-02T15:04:05.0-08:00"`,
    32  		`"2019-01-02T15:04:05.01-08:00"`,
    33  		`"2019-01-02T15:04:05.012345678-08:00"`,
    34  		`"2019-02-28T15:04:59Z"`,
    35  
    36  		// TODO: allow leap seconds? This is allowed by the RFC 3339 spec.
    37  		// `"2019-06-30T23:59:60Z"`, // leap seconds
    38  
    39  		// NOTE: Go 1.17 rejected the extra digits,
    40  		// and Go 1.18 started accepting them while discarding them.
    41  		// We want CUE to be consistent across Go versions,
    42  		// so we should probably fork Go's time package to behave exactly the
    43  		// way we want and in a consistent way across Go versions.
    44  		`"2019-01-02T15:04:05.01234567890-08:00"`,
    45  	}
    46  
    47  	for _, tc := range validTimes {
    48  		t.Run(tc, func(t *testing.T) {
    49  			// Test JSON unmarshaling
    50  			var tm time.Time
    51  
    52  			if err := json.Unmarshal([]byte(tc), &tm); err != nil {
    53  				t.Errorf("unmarshal JSON failed unexpectedly: %v", err)
    54  			}
    55  
    56  			if tc == "null" {
    57  				return
    58  			}
    59  			str, _ := strconv.Unquote(tc)
    60  
    61  			if b, err := Time(str); !b || err != nil {
    62  				t.Errorf("Time failed unexpectedly: %v", err)
    63  			}
    64  			if _, err := Parse(RFC3339Nano, str); err != nil {
    65  				t.Errorf("Parse failed unexpectedly")
    66  			}
    67  		})
    68  	}
    69  
    70  	invalidTimes := []string{
    71  		`"2019-01-02T15:04:05"`,        // missing time zone
    72  		`"2019-01-02T15:04:61Z"`,       // seconds out of range
    73  		`"2019-01-02T15:60:00Z"`,       // minute out of range
    74  		`"2019-01-02T24:00:00Z"`,       // hour out of range
    75  		`"2019-01-32T23:00:00Z"`,       // day out of range
    76  		`"2019-01-00T23:00:00Z"`,       // day out of range
    77  		`"2019-00-15T23:00:00Z"`,       // month out of range
    78  		`"2019-13-15T23:00:00Z"`,       // month out of range
    79  		`"2019-01-02T15:04:05Z+08:00"`, // double time zone
    80  		`"2019-01-02T15:04:05+08"`,     // partial time zone
    81  	}
    82  
    83  	for _, tc := range invalidTimes {
    84  		t.Run(tc, func(t *testing.T) {
    85  			// Test JSON unmarshaling
    86  			var tm time.Time
    87  
    88  			if err := json.Unmarshal([]byte(tc), &tm); err == nil {
    89  				t.Errorf("unmarshal JSON succeeded unexpectedly: %v", err)
    90  			}
    91  
    92  			str, _ := strconv.Unquote(tc)
    93  
    94  			if _, err := Time(str); err == nil {
    95  				t.Errorf("CUE eval succeeded unexpectedly")
    96  			}
    97  
    98  			if _, err := Parse(RFC3339Nano, str); err == nil {
    99  				t.Errorf("CUE eval succeeded unexpectedly")
   100  			}
   101  		})
   102  	}
   103  }
   104  
   105  func TestUnix(t *testing.T) {
   106  	valid := []struct {
   107  		sec  int64
   108  		nano int64
   109  		want string
   110  	}{
   111  		{0, 0, "1970-01-01T00:00:00Z"},
   112  		{1500000000, 123456, "2017-07-14T02:40:00.000123456Z"},
   113  	}
   114  
   115  	for _, tc := range valid {
   116  		t.Run(tc.want, func(t *testing.T) {
   117  			got := Unix(tc.sec, tc.nano)
   118  			if got != tc.want {
   119  				t.Errorf("got %v; want %s", got, tc.want)
   120  			}
   121  		})
   122  	}
   123  }
   124
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