Fix mo-test for projects without default.packtool.sources in `dfx…

….json` file (#52)

* Update project unit tests

* Fix 'mo-test' for projects without 'default.packtool.sources' in dfx.json

* 0.11.2

package.json

@@ -1,6 +1,6 @@
 {
     "name": "mo-dev",
-    "version": "0.11.1",
+    "version": "0.11.2",
     "description": "A live reload development server for Motoko smart contracts.",
     "author": "DFINITY Foundation (https://dfinity.org)",
     "license": "Apache-2.0",

src/testing.ts

@@ -63,7 +63,7 @@ export async function runTests(
     const dfxSources = await loadDfxSources(directory);
 
     if (settings.verbosity >= 1) {
-        console.log(pc.magenta(dfxSources));
+        console.log(pc.magenta(dfxSources ?? '(no package sources)'));
     }
 
     if (settings.verbosity >= 0) {
@@ -151,10 +151,15 @@ export async function runTests(
     return runs;
 }
 
+interface SharedTestInfo {
+    mocPath: string;
+    dfxSources: string | undefined;
+}
+
 async function runTestFile(
     test: Test,
     settings: TestSettings,
-    shared: { mocPath: string; dfxSources: string },
+    shared: SharedTestInfo,
 ): Promise<TestRun[]> {
     const source = await readFile(test.path, 'utf8');
     const modes: TestMode[] = [];
@@ -178,7 +183,7 @@ async function runTest(
     test: Test,
     mode: TestMode,
     settings: TestSettings,
-    { mocPath, dfxSources }: { mocPath: string; dfxSources: string },
+    { mocPath, dfxSources }: SharedTestInfo,
 ): Promise<TestRun> {
     const { path } = test;
 
@@ -196,7 +201,9 @@ async function runTest(
     try {
         if (mode === 'interpreter') {
             const interpretResult = await execa(
-                `${shellEscape([mocPath, '-r', path])} ${dfxSources}`,
+                `${shellEscape([mocPath, '-r', path])}${
+                    dfxSources ? ` ${dfxSources}` : ''
+                }`,
                 { shell: true, cwd: settings.directory, reject: false },
             );
             return {
@@ -222,7 +229,7 @@ async function runTest(
                         '-o',
                         wasmPath,
                         path,
-                    ])} ${dfxSources}`,
+                    ])}${dfxSources ? ` ${dfxSources}` : ''}`,
                     { shell: true, cwd: settings.directory },
                 );
                 const wasmtimeResult = await execa(

tests/mo-dev.test.ts

@@ -39,6 +39,7 @@ describe('mo-dev', () => {
                 'motoko_canister/test/WasiError.test.mo',
                 'motoko_canister/test/WasiFail.test.mo',
                 'motoko_canister/test/WasiPass.test.mo',
+                'vm/tests/Main.test.mo',
                 'vm/vm_canister/Main.mo',
             ]);
         } finally {

tests/mo-test.test.ts

@@ -14,7 +14,7 @@ describe('mo-test', () => {
                 testRuns.push(result);
             },
         );
-        expect(testRuns.length).toEqual(6);
+        expect(testRuns.length).toEqual(7);
     }, 20000);
 
     test('--testmode, wasi', async () => {

tests/project/vm/tests/Main.test.mo

@@ -0,0 +1,5 @@
+import { Main } "../vm_canister/Main";
+
+let canister = await Main();
+
+assert (await canister.main()) == 123;

tests/project/vm/vm_canister/Main.mo

@@ -1,4 +1,4 @@
-actor {
+actor class Main() {
     public func main() : async Nat {
         123;
     };