Add initial OFX import test

So far, this only checks to ensure that the import doesn't return an
error code.

internal/handlers/ofx_test.go

@@ -0,0 +1,36 @@
+package handlers_test
+
+import (
+	"net/http"
+	"strconv"
+	"testing"
+)
+
+func importOFX(client *http.Client, accountid int64, filename string) error {
+	return uploadFile(client, filename, "/v1/accounts/"+strconv.FormatInt(accountid, 10)+"/imports/ofxfile")
+}
+
+func TestImportOFX(t *testing.T) {
+	RunWith(t, &data[0], func(t *testing.T, d *TestData) {
+		// Ensure there's only one USD currency
+		oldDefault, err := getSecurity(d.clients[0], d.users[0].DefaultCurrency)
+		if err != nil {
+			t.Fatalf("Error fetching default security: %s\n", err)
+		}
+		d.users[0].DefaultCurrency = d.securities[0].SecurityId
+		if _, err := updateUser(d.clients[0], &d.users[0]); err != nil {
+			t.Fatalf("Error updating user: %s\n", err)
+		}
+		if err := deleteSecurity(d.clients[0], oldDefault); err != nil {
+			t.Fatalf("Error removing default security: %s\n", err)
+		}
+
+		// Import and ensure it didn't return a nasty error code
+		if err = importOFX(d.clients[0], d.accounts[1].AccountId, "handlers_testdata/checking_20171126.ofx"); err != nil {
+			t.Fatalf("Error importing OFX: %s\n", err)
+		}
+		if err = importOFX(d.clients[0], d.accounts[1].AccountId, "handlers_testdata/checking_20171129.ofx"); err != nil {
+			t.Fatalf("Error importing OFX: %s\n", err)
+		}
+	})
+}