github.com/jackc/pgx/v5@v5.5.5/pgtype/float8_test.go (about)

     1  package pgtype_test
     2  
     3  import (
     4  	"context"
     5  	"testing"
     6  
     7  	"github.com/jackc/pgx/v5/pgtype"
     8  	"github.com/jackc/pgx/v5/pgxtest"
     9  )
    10  
    11  func TestFloat8Codec(t *testing.T) {
    12  	pgxtest.RunValueRoundTripTests(context.Background(), t, defaultConnTestRunner, nil, "float8", []pgxtest.ValueRoundTripTest{
    13  		{pgtype.Float8{Float64: -1, Valid: true}, new(pgtype.Float8), isExpectedEq(pgtype.Float8{Float64: -1, Valid: true})},
    14  		{pgtype.Float8{Float64: 0, Valid: true}, new(pgtype.Float8), isExpectedEq(pgtype.Float8{Float64: 0, Valid: true})},
    15  		{pgtype.Float8{Float64: 1, Valid: true}, new(pgtype.Float8), isExpectedEq(pgtype.Float8{Float64: 1, Valid: true})},
    16  		{float64(0.00001), new(float64), isExpectedEq(float64(0.00001))},
    17  		{float64(9999.99), new(float64), isExpectedEq(float64(9999.99))},
    18  		{pgtype.Float8{}, new(pgtype.Float8), isExpectedEq(pgtype.Float8{})},
    19  		{int64(1), new(int64), isExpectedEq(int64(1))},
    20  		{"1.23", new(string), isExpectedEq("1.23")},
    21  		{nil, new(*float64), isExpectedEq((*float64)(nil))},
    22  	})
    23  }
    24  
    25  func TestFloat8MarshalJSON(t *testing.T) {
    26  	successfulTests := []struct {
    27  		source pgtype.Float8
    28  		result string
    29  	}{
    30  		{source: pgtype.Float8{Float64: 0}, result: "null"},
    31  		{source: pgtype.Float8{Float64: 1.23, Valid: true}, result: "1.23"},
    32  	}
    33  	for i, tt := range successfulTests {
    34  		r, err := tt.source.MarshalJSON()
    35  		if err != nil {
    36  			t.Errorf("%d: %v", i, err)
    37  		}
    38  
    39  		if string(r) != tt.result {
    40  			t.Errorf("%d: expected %v to convert to %v, but it was %v", i, tt.source, tt.result, string(r))
    41  		}
    42  	}
    43  }
    44  
    45  func TestFloat8UnmarshalJSON(t *testing.T) {
    46  	successfulTests := []struct {
    47  		source string
    48  		result pgtype.Float8
    49  	}{
    50  		{source: "null", result: pgtype.Float8{Float64: 0}},
    51  		{source: "1.23", result: pgtype.Float8{Float64: 1.23, Valid: true}},
    52  	}
    53  	for i, tt := range successfulTests {
    54  		var r pgtype.Float8
    55  		err := r.UnmarshalJSON([]byte(tt.source))
    56  		if err != nil {
    57  			t.Errorf("%d: %v", i, err)
    58  		}
    59  
    60  		if r != tt.result {
    61  			t.Errorf("%d: expected %v to convert to %v, but it was %v", i, tt.source, tt.result, r)
    62  		}
    63  	}
    64  }