harness: support tests with multiple exchanges

1 files changed, 22 insertions, 5 deletions

diff --git a/packages/taler-harness/src/harness/harness.ts b/packages/taler-harness/src/harness/harness.ts
index 5f90c8daf..5e993b95e 100644
--- a/packages/taler-harness/src/harness/harness.ts
+++ b/packages/taler-harness/src/harness/harness.ts
@@ -435,8 +435,20 @@ export interface DbInfo {
   dbname: string;
 }
 
-export async function setupDb(t: GlobalTestState): Promise<DbInfo> {
-  const dbname = "taler-integrationtest";
+export interface SetupDbOpts {
+  nameSuffix?: string;
+}
+
+export async function setupDb(
+  t: GlobalTestState,
+  opts: SetupDbOpts = {},
+): Promise<DbInfo> {
+  let dbname: string;
+  if (!opts.nameSuffix) {
+    dbname = "taler-integrationtest";
+  } else {
+    dbname = `taler-integrationtest-${opts.nameSuffix}`;
+  }
   try {
     await runCommand(t, "dropdb", "dropdb", [dbname]);
   } catch (e: any) {
@@ -479,11 +491,15 @@ export interface FakeBankConfig {
   httpPort: number;
 }
 
-function setTalerPaths(config: Configuration, home: string) {
+/**
+ * @param name additional component name, needed when launching multiple instances of the same component
+ */
+function setTalerPaths(config: Configuration, home: string, name?: string) {
   config.setString("paths", "taler_home", home);
   // We need to make sure that the path of taler_runtime_dir isn't too long,
   // as it contains unix domain sockets (108 character limit).
-  const runDir = fs.mkdtempSync("/tmp/taler-test-");
+  const extraName = name != null ? `${name}-` : "";
+  const runDir = fs.mkdtempSync(`/tmp/taler-test-${extraName}`);
   config.setString("paths", "taler_runtime_dir", runDir);
   config.setString(
     "paths",
@@ -999,7 +1015,7 @@ export class ExchangeService implements ExchangeServiceInterface {
   static create(gc: GlobalTestState, e: ExchangeConfig) {
     const testDir = e.overrideTestDir ?? gc.testDir;
     const config = new Configuration();
-    setTalerPaths(config, testDir + "/talerhome");
+    setTalerPaths(config, `${testDir}/talerhome-exchange-${e.name}`, e.name);
     config.setString("taler", "currency", e.currency);
     // Required by the exchange but not really used yet.
     config.setString("exchange", "aml_threshold", `${e.currency}:1000000`);
@@ -1024,6 +1040,7 @@ export class ExchangeService implements ExchangeServiceInterface {
       "master_priv_file",
       "${TALER_DATA_HOME}/exchange/offline-keys/master.priv",
     );
+    config.setString("exchange", "base_url", `http://localhost:${e.httpPort}/`);
     config.setString("exchange", "serve", "tcp");
     config.setString("exchange", "port", `${e.httpPort}`);