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json: Fix float32 encoding and add test (#1003)
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This commit fixes incorrect float32 encoding. A test
case is also added.

Refs: 
* #1002
* Internal ticket: GO-860
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manjari25 authored Sep 8, 2021
1 parent 914c4ff commit 305c249
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Showing 2 changed files with 7 additions and 1 deletion.
6 changes: 5 additions & 1 deletion zapcore/json_encoder.go
Original file line number Diff line number Diff line change
Expand Up @@ -128,6 +128,11 @@ func (enc *jsonEncoder) AddFloat64(key string, val float64) {
enc.AppendFloat64(val)
}

func (enc *jsonEncoder) AddFloat32(key string, val float32) {
enc.addKey(key)
enc.AppendFloat32(val)
}

func (enc *jsonEncoder) AddInt64(key string, val int64) {
enc.addKey(key)
enc.AppendInt64(val)
Expand Down Expand Up @@ -297,7 +302,6 @@ func (enc *jsonEncoder) AppendUint64(val uint64) {
}

func (enc *jsonEncoder) AddComplex64(k string, v complex64) { enc.AddComplex128(k, complex128(v)) }
func (enc *jsonEncoder) AddFloat32(k string, v float32) { enc.AddFloat64(k, float64(v)) }
func (enc *jsonEncoder) AddInt(k string, v int) { enc.AddInt64(k, int64(v)) }
func (enc *jsonEncoder) AddInt32(k string, v int32) { enc.AddInt64(k, int64(v)) }
func (enc *jsonEncoder) AddInt16(k string, v int16) { enc.AddInt64(k, int64(v)) }
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2 changes: 2 additions & 0 deletions zapcore/json_encoder_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,7 @@ func TestJSONEncodeEntry(t *testing.T) {
"M": "lob law",
"so": "passes",
"answer": 42,
"a_float32": 2.71,
"common_pie": 3.14,
"complex_value": "3.14-2.71i",
"null_value": null,
Expand All @@ -87,6 +88,7 @@ func TestJSONEncodeEntry(t *testing.T) {
zap.String("so", "passes"),
zap.Int("answer", 42),
zap.Float64("common_pie", 3.14),
zap.Float32("a_float32", 2.71),
zap.Complex128("complex_value", 3.14-2.71i),
// Cover special-cased handling of nil in AddReflect() and
// AppendReflect(). Note that for the latter, we explicitly test
Expand Down

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