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resource.go
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resource.go
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// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package testresource contains utilities for testing with resources.
package testresource
import (
"bytes"
"encoding/gob"
"errors"
"github.com/google/simhospital/pkg/ir"
)
// Writer is a resource writer that exposes the resources it has written to be retrieved by tests.
type Writer struct {
enc *gob.Encoder
dec *gob.Decoder
Resources []*ir.PatientInfo
}
// Generate appends a copy of `p` to `Resources`.
func (w *Writer) Generate(p *ir.PatientInfo) error {
if p == nil {
return errors.New("PatientInfo is nil")
}
if err := w.enc.Encode(p); err != nil {
return err
}
var pCopy ir.PatientInfo
if err := w.dec.Decode(&pCopy); err != nil {
return err
}
w.Resources = append(w.Resources, &pCopy)
return nil
}
// Close exists to implement the hospital.ResourceWriter interface and is a no-op.
func (w *Writer) Close() error {
return nil
}
// NewWriter initialises gob encoders and returns a new TestWriter.
func NewWriter() *Writer {
var b bytes.Buffer
return &Writer{enc: gob.NewEncoder(&b), dec: gob.NewDecoder(&b)}
}