Infer DAI token from Ethereum chain ID

api_tests/package.json

@@ -22,6 +22,7 @@
         "@types/find-cache-dir": "^3.2.0",
         "@types/glob": "^7.1.3",
         "@types/jest": "^26.0.10",
+        "@types/lodash": "^4.14.159",
         "@types/node": "^14.6",
         "@types/proper-lockfile": "^4.1.1",
         "@types/rimraf": "^3.0.0",
@@ -40,6 +41,7 @@
         "glob": "^7.1.6",
         "jasmine": "^3.6.1",
         "jest": "^26.4.1",
+        "lodash": "^4.17.20",
         "log4js": "^6.3.0",
         "p-timeout": "^3.2.0",
         "prettier": "^2.0.5",

api_tests/src/actors/actor.ts

@@ -16,7 +16,7 @@ import {
     SwapStatus,
 } from "../payload";
 import { Logger } from "log4js";
-import { E2ETestActorConfig } from "../config";
+import { CndConfigFile, E2ETestActorConfig } from "../config";
 import {
     Asset,
     assetAsKey,
@@ -34,6 +34,7 @@ import { defaultLedgerDescriptionForLedger, getIdentities } from "./defaults";
 import pTimeout from "p-timeout";
 import { Entity, Link } from "comit-sdk/dist/src/cnd/siren";
 import { BtcDaiOrder } from "./order_factory";
+import { merge } from "lodash";
 
 export type ActorName = "alice" | "bob" | "carol";
 
@@ -48,23 +49,25 @@ export class Actor {
         ledgerConfig: LedgerConfig,
         cargoTargetDirectory: string,
         cndLogFile: string,
-        logger: Logger
+        logger: Logger,
+        configOverrides: Partial<CndConfigFile>
     ) {
         const actorConfig = await E2ETestActorConfig.for(name, logger);
-        const cndConfigFile = actorConfig.generateCndConfigFile(ledgerConfig);
+        const generatedConfig = actorConfig.generateCndConfigFile(ledgerConfig);
+        const finalConfig = merge(generatedConfig, configOverrides);
 
         const cndInstance = new CndInstance(
             cargoTargetDirectory,
             cndLogFile,
             logger,
-            cndConfigFile
+            finalConfig
         );
 
         await cndInstance.start();
 
         logger.info(
             "Created new actor with config %s",
-            JSON.stringify(cndConfigFile)
+            JSON.stringify(finalConfig)
         );
 
         return new Actor(logger, cndInstance, name);

api_tests/src/config.ts

@@ -14,6 +14,9 @@ export interface CndConfigFile {
     data?: { dir: string };
     network: { listen: string[] };
     logging: { level: string };
+    bitcoin?: BitcoinConfig;
+    ethereum?: EthereumConfig;
+    lightning?: LightningConfig;
 }
 
 export interface HttpApi {
@@ -65,10 +68,8 @@ export class E2ETestActorConfig {
         };
     }
 
-    private createLedgerConnectors(
-        ledgerConfig: LedgerConfig
-    ): LedgerConnectors {
-        const config: LedgerConnectors = {};
+    private createLedgerConnectors(ledgerConfig: LedgerConfig): LedgerConfigs {
+        const config: LedgerConfigs = {};
 
         if (ledgerConfig.bitcoin) {
             config.bitcoin = bitcoinConnector(ledgerConfig.bitcoin);
@@ -106,26 +107,31 @@ export class E2ETestActorConfig {
     }
 }
 
-interface LedgerConnectors {
-    bitcoin?: BitcoinConnector;
-    ethereum?: EthereumConnector;
-    lightning?: LightningConnector;
+interface LedgerConfigs {
+    bitcoin?: BitcoinConfig;
+    ethereum?: EthereumConfig;
+    lightning?: LightningConfig;
 }
 
 interface Geth {
     node_url: string;
 }
 
-interface EthereumConnector {
+interface EthereumConfig {
     chain_id: number;
     geth: Geth;
+    tokens: Tokens;
+}
+
+interface Tokens {
+    dai: string;
 }
 
 interface Bitcoind {
     node_url: string;
 }
 
-interface BitcoinConnector {
+interface BitcoinConfig {
     network: string;
     bitcoind: Bitcoind;
 }
@@ -135,12 +141,12 @@ interface Lnd {
     dir: string;
 }
 
-interface LightningConnector {
+interface LightningConfig {
     network: string;
     lnd: Lnd;
 }
 
-function bitcoinConnector(nodeConfig: BitcoinNodeConfig): BitcoinConnector {
+function bitcoinConnector(nodeConfig: BitcoinNodeConfig): BitcoinConfig {
     return {
         bitcoind: {
             node_url: nodeConfig.rpcUrl,
@@ -149,18 +155,19 @@ function bitcoinConnector(nodeConfig: BitcoinNodeConfig): BitcoinConnector {
     };
 }
 
-function ethereumConnector(nodeConfig: EthereumNodeConfig): EthereumConnector {
+function ethereumConnector(nodeConfig: EthereumNodeConfig): EthereumConfig {
     return {
         chain_id: nodeConfig.chain_id,
         geth: {
             node_url: nodeConfig.rpc_url,
         },
+        tokens: {
+            dai: nodeConfig.tokenContract,
+        },
     };
 }
 
-function lightningConnector(
-    nodeConfig: LightningNodeConfig
-): LightningConnector {
+function lightningConnector(nodeConfig: LightningNodeConfig): LightningConfig {
     return {
         network: "regtest",
         lnd: {

api_tests/src/create_actors.ts

@@ -21,7 +21,8 @@ export async function createActors(
                 global.ledgerConfigs,
                 global.cargoTargetDir,
                 cndLogFile,
-                actorLogger
+                actorLogger,
+                global.cndConfigOverrides
             )
         );
     }

api_tests/src/test_environment.ts

@@ -17,6 +17,8 @@ import { LedgerInstance, LightningNodeConfig } from "./ledgers";
 import { GethInstance } from "./ledgers/geth_instance";
 import { LndInstance } from "./ledgers/lnd_instance";
 import BitcoinRpcClient from "bitcoin-core";
+import { CndConfigFile } from "./config";
+import { set } from "lodash";
 
 export default class TestEnvironment extends NodeEnvironment {
     private readonly testSuite: string;
@@ -25,6 +27,7 @@ export default class TestEnvironment extends NodeEnvironment {
     private readonly locksDir: string;
     private readonly nodeModulesBinDir: string;
     private readonly srcDir: string;
+    private readonly cndConfigOverrides: Partial<CndConfigFile>;
 
     public global: HarnessGlobal;
 
@@ -33,9 +36,12 @@ export default class TestEnvironment extends NodeEnvironment {
     constructor(config: Config.ProjectConfig, context: EnvironmentContext) {
         super(config);
 
-        this.ledgers = TestEnvironment.extractLedgersToBeStarted(
+        this.ledgers = extractLedgersToBeStarted(context.docblockPragmas);
+        this.cndConfigOverrides = extractCndConfigOverrides(
             context.docblockPragmas
         );
+        assertNoUnhandledPargmas(context.docblockPragmas);
+
         this.logDir = path.resolve(config.rootDir, "log");
         this.locksDir = path.resolve(config.rootDir, "locks");
         this.nodeModulesBinDir = path.resolve(
@@ -60,6 +66,7 @@ export default class TestEnvironment extends NodeEnvironment {
         this.global.ledgerConfigs = {};
         this.global.lndWallets = {};
         this.global.cargoTargetDir = cargoTargetDir;
+        this.global.cndConfigOverrides = this.cndConfigOverrides;
 
         const log4js = configure({
             appenders: {
@@ -389,20 +396,54 @@ export default class TestEnvironment extends NodeEnvironment {
 
         return dir;
     }
+}
 
-    private static extractLedgersToBeStarted(
-        docblockPragmas: Record<string, string | string[]>
-    ): string[] {
-        const ledgersToStart = docblockPragmas.ledger;
+function extractLedgersToBeStarted(
+    docblockPragmas: Record<string, string | string[]>
+): string[] {
+    const ledgersToStart = docblockPragmas.ledger;
+    delete docblockPragmas.ledger;
 
-        if (!ledgersToStart) {
-            return [];
-        }
+    if (!ledgersToStart) {
+        return [];
+    }
 
-        if (typeof ledgersToStart === "string") {
-            return [ledgersToStart];
-        }
+    if (typeof ledgersToStart === "string") {
+        return [ledgersToStart];
+    }
+
+    return ledgersToStart;
+}
+
+export function extractCndConfigOverrides(
+    docblockPragmas: Record<string, string | string[]>
+): Partial<CndConfigFile> {
+    let configOverrides = docblockPragmas.cndConfigOverride;
+    delete docblockPragmas.cndConfigOverride;
+
+    if (!configOverrides) {
+        return {};
+    }
+
+    // generalize single override to list of overrides
+    if (typeof configOverrides === "string") {
+        configOverrides = [configOverrides];
+    }
+
+    return configOverrides
+        .map((override) => override.split(" = "))
+        .filter(([key, _]) => key !== "")
+        .reduce((config, [key, value]) => {
+            set(config, key, value);
+
+            return config;
+        }, {});
+}
 
-        return ledgersToStart;
+export function assertNoUnhandledPargmas(
+    docblockPragmas: Record<string, string | string[]>
+) {
+    for (const [pragma] of Object.entries(docblockPragmas)) {
+        throw new Error(`Unhandled pragma '${pragma}'! Typo?`);
     }
 }

api_tests/src/utils.ts

@@ -11,6 +11,7 @@ import {
     EthereumNodeConfig,
     LightningNodeConfig,
 } from "./ledgers";
+import { CndConfigFile } from "./config";
 
 export interface HarnessGlobal extends Global.Global {
     ledgerConfigs: LedgerConfig;
@@ -21,6 +22,7 @@ export interface HarnessGlobal extends Global.Global {
     tokenContract: string;
     gethLockDir: string;
     cargoTargetDir: string;
+    cndConfigOverrides: Partial<CndConfigFile>;
 
     getDataDir: (program: string) => Promise<string>;
     getLogFile: (pathElements: string[]) => string;

api_tests/tests/sanity.ts

@@ -1,3 +1,8 @@
+/**
+ * @cndConfigOverride ethereum.chain_id = 1337
+ * @cndConfigOverride ethereum.tokens.dai = 0x0000000000000000000000000000000000000000
+ */
+
 import { oneActorTest, twoActorTest } from "../src/actor_test";
 import SwapFactory from "../src/actors/swap_factory";
 

api_tests/tests/test_environment.spec.ts

@@ -0,0 +1,61 @@
+import { extractCndConfigOverrides } from "../src/test_environment";
+
+describe("extractCndConfigOverrides", () => {
+    test("given no overrides, returns empty object", () => {
+        expect(extractCndConfigOverrides({})).toStrictEqual({});
+        expect(
+            extractCndConfigOverrides({
+                cndConfigOverride: null,
+            })
+        ).toStrictEqual({});
+        expect(
+            extractCndConfigOverrides({
+                cndConfigOverride: "",
+            })
+        ).toStrictEqual({});
+        expect(
+            extractCndConfigOverrides({
+                cndConfigOverride: ["", "", ""],
+            })
+        ).toStrictEqual({});
+    });
+
+    test("given overrides, sets nested key", () => {
+        const overrides = {
+            cndConfigOverride:
+                "ethereum.tokens.dai = 0x0000000000000000000000000000000000000000",
+        };
+
+        const config = extractCndConfigOverrides(overrides);
+
+        expect(config).toStrictEqual({
+            ethereum: {
+                tokens: {
+                    dai: "0x0000000000000000000000000000000000000000",
+                },
+            },
+        });
+    });
+
+    test("given two overrides, sets them both", () => {
+        const overrides = {
+            cndConfigOverride: [
+                "ethereum.tokens.dai = 0x0000000000000000000000000000000000000000",
+                "bitcoin.network = regtest",
+            ],
+        };
+
+        const config = extractCndConfigOverrides(overrides);
+
+        expect(config).toStrictEqual({
+            ethereum: {
+                tokens: {
+                    dai: "0x0000000000000000000000000000000000000000",
+                },
+            },
+            bitcoin: {
+                network: "regtest",
+            },
+        });
+    });
+});

api_tests/yarn.lock

@@ -1073,6 +1073,11 @@
     jest-diff "^25.2.1"
     pretty-format "^25.2.1"
 
+"@types/lodash@^4.14.159":
+  version "4.14.159"
+  resolved "https://registry.yarnpkg.com/@types/lodash/-/lodash-4.14.159.tgz#61089719dc6fdd9c5cb46efc827f2571d1517065"
+  integrity sha512-gF7A72f7WQN33DpqOWw9geApQPh4M3PxluMtaHxWHXEGSN12/WbcEk/eNSqWNQcQhF66VSZ06vCF94CrHwXJDg==
+
 "@types/long@*", "@types/long@^4.0.0":
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/@types/long/-/long-4.0.1.tgz#459c65fa1867dafe6a8f322c4c51695663cc55e9"
@@ -4211,6 +4216,11 @@ lodash@^4.0.0, lodash@^4.17.13, lodash@^4.17.15:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
   integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
 
+lodash@^4.17.20:
+  version "4.17.20"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
+  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
+
 log4js@^6.3.0:
   version "6.3.0"
   resolved "https://registry.yarnpkg.com/log4js/-/log4js-6.3.0.tgz#10dfafbb434351a3e30277a00b9879446f715bcb"