write float64

Author: Tao Wen

stream_tests/number_test.go

@@ -201,3 +201,32 @@ func Test_write_float32(t *testing.T) {
 		})
 	}
 }
+
+func Test_write_float64(t *testing.T) {
+	vals := []float64{0, 1, -1, 99, 0xff, 0xfff, 0xffff, 0xfffff, 0xffffff, 0x4ffffff, 0xfffffff,
+		-0x4ffffff, -0xfffffff, 1.2345, 1.23456, 1.234567, 1.001}
+	for _, val := range vals {
+		t.Run(fmt.Sprintf("%v", val), func(t *testing.T) {
+			stream := jsoniter.NewStream()
+			stream.WriteFloat64(val)
+			output, err := json.Marshal(val)
+			if err != nil {
+				t.Fatal()
+			}
+			if string(output) != string(stream.Buffer()) {
+				t.Fatal()
+			}
+		})
+		t.Run(fmt.Sprintf("%v", val), func(t *testing.T) {
+			stream := jsoniter.NewStream()
+			stream.WriteInterface(val)
+			output, err := json.Marshal(val)
+			if err != nil {
+				t.Fatal()
+			}
+			if string(output) != string(stream.Buffer()) {
+				t.Fatal()
+			}
+		})
+	}
+}