error_test.go raw

   1  package database_test
   2  
   3  import (
   4  	"errors"
   5  	"testing"
   6  	
   7  	"github.com/p9c/p9/pkg/database"
   8  )
   9  
  10  // TestErrorCodeStringer tests the stringized output for the ErrorCode type.
  11  func TestErrorCodeStringer(t *testing.T) {
  12  	tests := []struct {
  13  		in   database.ErrorCode
  14  		want string
  15  	}{
  16  		{database.ErrDbTypeRegistered, "ErrDbTypeRegistered"},
  17  		{database.ErrDbUnknownType, "ErrDbUnknownType"},
  18  		{database.ErrDbDoesNotExist, "ErrDbDoesNotExist"},
  19  		{database.ErrDbExists, "ErrDbExists"},
  20  		{database.ErrDbNotOpen, "ErrDbNotOpen"},
  21  		{database.ErrDbAlreadyOpen, "ErrDbAlreadyOpen"},
  22  		{database.ErrInvalid, "ErrInvalid"},
  23  		{database.ErrCorruption, "ErrCorruption"},
  24  		{database.ErrTxClosed, "ErrTxClosed"},
  25  		{database.ErrTxNotWritable, "ErrTxNotWritable"},
  26  		{database.ErrBucketNotFound, "ErrBucketNotFound"},
  27  		{database.ErrBucketExists, "ErrBucketExists"},
  28  		{database.ErrBucketNameRequired, "ErrBucketNameRequired"},
  29  		{database.ErrKeyRequired, "ErrKeyRequired"},
  30  		{database.ErrKeyTooLarge, "ErrKeyTooLarge"},
  31  		{database.ErrValueTooLarge, "ErrValueTooLarge"},
  32  		{database.ErrIncompatibleValue, "ErrIncompatibleValue"},
  33  		{database.ErrBlockNotFound, "ErrBlockNotFound"},
  34  		{database.ErrBlockExists, "ErrBlockExists"},
  35  		{database.ErrBlockRegionInvalid, "ErrBlockRegionInvalid"},
  36  		{database.ErrDriverSpecific, "ErrDriverSpecific"},
  37  		{0xffff, "Unknown ErrorCode (65535)"},
  38  	}
  39  	// Detect additional error codes that don't have the stringer added.
  40  	if len(tests)-1 != int(database.TstNumErrorCodes) {
  41  		t.Errorf("It appears an error code was added without adding " +
  42  			"an associated stringer test",
  43  		)
  44  	}
  45  	t.Logf("Running %d tests", len(tests))
  46  	for i, test := range tests {
  47  		result := test.in.String()
  48  		if result != test.want {
  49  			t.Errorf("String #%d\ngot: %s\nwant: %s", i, result,
  50  				test.want,
  51  			)
  52  			continue
  53  		}
  54  	}
  55  }
  56  
  57  // TestError tests the error output for the DBError type.
  58  func TestError(t *testing.T) {
  59  	t.Parallel()
  60  	tests := []struct {
  61  		in   database.DBError
  62  		want string
  63  	}{
  64  		{
  65  			database.DBError{Description: "some error"},
  66  			"some error",
  67  		},
  68  		{
  69  			database.DBError{Description: "human-readable error"},
  70  			"human-readable error",
  71  		},
  72  		{
  73  			database.DBError{
  74  				ErrorCode:   database.ErrDriverSpecific,
  75  				Description: "some error",
  76  				Err:         errors.New("driver-specific error"),
  77  			},
  78  			"some error: driver-specific error",
  79  		},
  80  	}
  81  	t.Logf("Running %d tests", len(tests))
  82  	for i, test := range tests {
  83  		result := test.in.Error()
  84  		if result != test.want {
  85  			t.Errorf("DBError #%d\n got: %s want: %s", i, result,
  86  				test.want,
  87  			)
  88  			continue
  89  		}
  90  	}
  91  }
  92