github.com/v2pro/plz@v0.0.0-20221028024117-e5f9aec5b631/msgfmt/jsonfmt/level_1/pointer_test.go (about)

     1  package test
     2  
     3  import (
     4  	"testing"
     5  	"github.com/v2pro/plz/msgfmt/jsonfmt"
     6  	"github.com/v2pro/plz/test"
     7  	"github.com/v2pro/plz/countlog"
     8  	"github.com/v2pro/plz/test/must"
     9  	"encoding/json"
    10  	"time"
    11  	"errors"
    12  	"io"
    13  )
    14  
    15  func Test_pointer(t *testing.T) {
    16  	t.Run("ptr int", test.Case(func(ctx *countlog.Context) {
    17  		one := 1
    18  		must.Equal("1", jsonfmt.MarshalToString(&one))
    19  	}))
    20  	t.Run("nil", test.Case(func(ctx *countlog.Context) {
    21  		var ptr *int
    22  		must.Equal("null", jsonfmt.MarshalToString(ptr))
    23  	}))
    24  	t.Run("ptr eface", test.Case(func(ctx *countlog.Context) {
    25  		one := interface{}(1)
    26  		must.Equal("1", jsonfmt.MarshalToString(&one))
    27  	}))
    28  	t.Run("ptr marshaler", test.Case(func(ctx *countlog.Context) {
    29  		marshaler := json.Marshaler(time.Time{})
    30  		must.Equal(`"0001-01-01T00:00:00Z"`, jsonfmt.MarshalToString(&marshaler))
    31  	}))
    32  	t.Run("ptr error", test.Case(func(ctx *countlog.Context) {
    33  		err := errors.New("hello")
    34  		must.Equal(`"hello"`, jsonfmt.MarshalToString(&err))
    35  	}))
    36  	t.Run("ptr iface", test.Case(func(ctx *countlog.Context) {
    37  		closer := io.Closer(TestCloser(100))
    38  		must.Equal(`100`, jsonfmt.MarshalToString(&closer))
    39  	}))
    40  }