94 lines
2.1 KiB
Go
94 lines
2.1 KiB
Go
package internal_test
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import (
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"bytes"
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"fmt"
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"math/big"
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"testing"
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"time"
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"git.naterciomoniz.net/applications/broker2anexoj/internal"
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)
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func TestReportLogger_Write(t *testing.T) {
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tNow := time.Now()
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tests := []struct {
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name string
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items []internal.ReportItem
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want []string
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}{
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{
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name: "empty",
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},
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{
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name: "single item positive",
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items: []internal.ReportItem{
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{
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BuyValue: new(big.Float).SetFloat64(100.0),
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SellValue: new(big.Float).SetFloat64(200.0),
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SellTimestamp: tNow,
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},
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},
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want: []string{
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fmt.Sprintf("%6d - realised +100.000000 on %s\n", 1, tNow.Format(time.RFC3339)),
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},
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},
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{
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name: "single item negative",
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items: []internal.ReportItem{
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{
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BuyValue: new(big.Float).SetFloat64(200.0),
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SellValue: new(big.Float).SetFloat64(150.0),
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SellTimestamp: tNow,
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},
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},
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want: []string{
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fmt.Sprintf("%6d - realised -50.000000 on %s\n", 1, tNow.Format(time.RFC3339)),
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},
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},
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{
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name: "multiple items",
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items: []internal.ReportItem{
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{
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BuyValue: new(big.Float).SetFloat64(100.0),
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SellValue: new(big.Float).SetFloat64(200.0),
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SellTimestamp: tNow,
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},
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{
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BuyValue: new(big.Float).SetFloat64(200.0),
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SellValue: new(big.Float).SetFloat64(150.0),
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SellTimestamp: tNow.Add(1),
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},
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},
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want: []string{
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fmt.Sprintf("%6d - realised +100.000000 on %s\n", 1, tNow.Format(time.RFC3339)),
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fmt.Sprintf("%6d - realised -50.000000 on %s\n", 2, tNow.Add(1).Format(time.RFC3339)),
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},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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buf := new(bytes.Buffer)
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rw := internal.NewReportLogger(buf)
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for _, item := range tt.items {
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err := rw.Write(item)
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if err != nil {
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t.Fatalf("unexpected error on write: %v", err)
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}
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}
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for _, wantLine := range tt.want {
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gotLine, err := buf.ReadString(byte('\n'))
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if err != nil {
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t.Fatalf("unexpected error on buffer read: %v", err)
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}
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if wantLine != gotLine {
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t.Fatalf("want line %q but got %q", wantLine, gotLine)
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}
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}
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})
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}
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}
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