testing: Add checks for OFX investment balances

Also fix a "bug" uncovered, relating to at least one FI's providing
unexpected signs for some OFX fields.

internal/handlers/ofx.go

@@ -228,14 +228,13 @@ func (i *OFXImport) GetInvBuyTran(buy *ofxgo.InvBuy, curdef *Security, account *
 	}
 
 	var commission, taxes, fees, load, total, tradingTotal big.Rat
-	commission.Set(&buy.Commission.Rat)
-	taxes.Set(&buy.Taxes.Rat)
-	fees.Set(&buy.Fees.Rat)
-	load.Set(&buy.Load.Rat)
-	total.Set(&buy.Total.Rat)
-	if total.Sign() > 0 {
-		total.Neg(&total)
-	}
+	commission.Abs(&buy.Commission.Rat)
+	taxes.Abs(&buy.Taxes.Rat)
+	fees.Abs(&buy.Fees.Rat)
+	load.Abs(&buy.Load.Rat)
+	total.Abs(&buy.Total.Rat)
+
+	total.Neg(&total)
 
 	tradingTotal.Neg(&total)
 	tradingTotal.Sub(&tradingTotal, &commission)
@@ -322,8 +321,8 @@ func (i *OFXImport) GetInvBuyTran(buy *ofxgo.InvBuy, curdef *Security, account *
 		Amount:          tradingTotal.FloatString(curdef.Precision),
 	})
 
-	units := big.NewRat(0, 1)
-	units.Set(&buy.Units.Rat)
+	var units big.Rat
+	units.Abs(&buy.Units.Rat)
 	t.Splits = append(t.Splits, &Split{
 		// TODO ReversalFiTID?
 		Status:          Imported,
@@ -334,7 +333,7 @@ func (i *OFXImport) GetInvBuyTran(buy *ofxgo.InvBuy, curdef *Security, account *
 		Memo:            memo,
 		Amount:          units.FloatString(security.Precision),
 	})
-	units.Neg(units)
+	units.Neg(&units)
 	t.Splits = append(t.Splits, &Split{
 		// TODO ReversalFiTID?
 		Status:          Imported,
@@ -493,14 +492,13 @@ func (i *OFXImport) GetReinvestTran(reinvest *ofxgo.Reinvest, curdef *Security,
 	}
 
 	var commission, taxes, fees, load, total, tradingTotal big.Rat
-	commission.Set(&reinvest.Commission.Rat)
-	taxes.Set(&reinvest.Taxes.Rat)
-	fees.Set(&reinvest.Fees.Rat)
-	load.Set(&reinvest.Load.Rat)
-	total.Set(&reinvest.Total.Rat)
-	if total.Sign() > 0 {
-		total.Neg(&total)
-	}
+	commission.Abs(&reinvest.Commission.Rat)
+	taxes.Abs(&reinvest.Taxes.Rat)
+	fees.Abs(&reinvest.Fees.Rat)
+	load.Abs(&reinvest.Load.Rat)
+	total.Abs(&reinvest.Total.Rat)
+
+	total.Neg(&total)
 
 	tradingTotal.Neg(&total)
 	tradingTotal.Sub(&tradingTotal, &commission)
@@ -610,7 +608,7 @@ func (i *OFXImport) GetReinvestTran(reinvest *ofxgo.Reinvest, curdef *Security,
 	})
 
 	var units big.Rat
-	units.Set(&reinvest.Units.Rat)
+	units.Abs(&reinvest.Units.Rat)
 	t.Splits = append(t.Splits, &Split{
 		// TODO ReversalFiTID?
 		Status:          Imported,
@@ -695,14 +693,16 @@ func (i *OFXImport) GetInvSellTran(sell *ofxgo.InvSell, curdef *Security, accoun
 	}
 
 	var commission, taxes, fees, load, total, tradingTotal big.Rat
-	commission.Set(&sell.Commission.Rat)
-	taxes.Set(&sell.Taxes.Rat)
-	fees.Set(&sell.Fees.Rat)
-	load.Set(&sell.Load.Rat)
-	total.Set(&sell.Total.Rat)
-	if total.Sign() < 0 {
-		total.Neg(&total)
-	}
+	commission.Abs(&sell.Commission.Rat)
+	taxes.Abs(&sell.Taxes.Rat)
+	fees.Abs(&sell.Fees.Rat)
+	load.Abs(&sell.Load.Rat)
+	total.Abs(&sell.Total.Rat)
+
+	commission.Neg(&commission)
+	taxes.Neg(&taxes)
+	fees.Neg(&fees)
+	load.Neg(&load)
 
 	tradingTotal.Neg(&total)
 	tradingTotal.Sub(&tradingTotal, &commission)
@@ -790,11 +790,11 @@ func (i *OFXImport) GetInvSellTran(sell *ofxgo.InvSell, curdef *Security, accoun
 	})
 
 	var units big.Rat
-	units.Set(&sell.Units.Rat)
+	units.Abs(&sell.Units.Rat)
 	t.Splits = append(t.Splits, &Split{
 		// TODO ReversalFiTID?
 		Status:          Imported,
-		ImportSplitType: SubAccount,
+		ImportSplitType: TradingAccount,
 		AccountId:       -1,
 		SecurityId:      security.SecurityId,
 		RemoteId:        "ofx:" + sell.InvTran.FiTID.String(),
@@ -805,7 +805,7 @@ func (i *OFXImport) GetInvSellTran(sell *ofxgo.InvSell, curdef *Security, accoun
 	t.Splits = append(t.Splits, &Split{
 		// TODO ReversalFiTID?
 		Status:          Imported,
-		ImportSplitType: TradingAccount,
+		ImportSplitType: SubAccount,
 		AccountId:       -1,
 		SecurityId:      security.SecurityId,
 		RemoteId:        "ofx:" + sell.InvTran.FiTID.String(),

internal/handlers/ofx_test.go

@@ -1,6 +1,7 @@
 package handlers_test
 
 import (
+	"fmt"
 	"github.com/aclindsa/moneygo/internal/handlers"
 	"net/http"
 	"strconv"
@@ -62,6 +63,32 @@ func TestImportOFXCreditCard(t *testing.T) {
 	})
 }
 
+func findSecurity(client *http.Client, symbol string, tipe handlers.SecurityType) (*handlers.Security, error) {
+	securities, err := getSecurities(client)
+	if err != nil {
+		return nil, err
+	}
+	for _, security := range *securities.Securities {
+		if security.Symbol == symbol && security.Type == tipe {
+			return security, nil
+		}
+	}
+	return nil, fmt.Errorf("Unable to find security: \"%s\"", symbol)
+}
+
+func findAccount(client *http.Client, name string, tipe handlers.AccountType, securityid int64) (*handlers.Account, error) {
+	accounts, err := getAccounts(client)
+	if err != nil {
+		return nil, err
+	}
+	for _, account := range *accounts.Accounts {
+		if account.Name == name && account.Type == tipe && account.SecurityId == securityid {
+			return &account, nil
+		}
+	}
+	return nil, fmt.Errorf("Unable to find account: \"%s\"", name)
+}
+
 func TestImportOFX401kMutualFunds(t *testing.T) {
 	RunWith(t, &data[0], func(t *testing.T, d *TestData) {
 		// Ensure there's only one USD currency
@@ -95,5 +122,27 @@ func TestImportOFX401kMutualFunds(t *testing.T) {
 			t.Fatalf("Error importing OFX: %s\n", err)
 		}
 		accountBalanceHelper(t, d.clients[0], account, "-192.10")
+
+		// Make sure the security was created and that the trading account has
+		// the right value
+		security, err := findSecurity(d.clients[0], "VANGUARD TARGET 2045", handlers.Stock)
+		if err != nil {
+			t.Fatalf("Error finding VANGUARD TARGET 2045 security: %s\n", err)
+		}
+		tradingaccount, err := findAccount(d.clients[0], "VANGUARD TARGET 2045", handlers.Trading, security.SecurityId)
+		if err != nil {
+			t.Fatalf("Error finding VANGUARD TARGET 2045 trading account: %s\n", err)
+		}
+		accountBalanceHelper(t, d.clients[0], tradingaccount, "-3.35400")
+
+		// Ensure actual holding account was created and in the correct place
+		investmentaccount, err := findAccount(d.clients[0], "VANGUARD TARGET 2045", handlers.Investment, security.SecurityId)
+		if err != nil {
+			t.Fatalf("Error finding VANGUARD TARGET 2045 investment account: %s\n", err)
+		}
+		accountBalanceHelper(t, d.clients[0], investmentaccount, "3.35400")
+		if investmentaccount.ParentAccountId != account.AccountId {
+			t.Errorf("Expected imported security account to be child of investment account it's imported into\n")
+		}
 	})
 }