test: check that error in custom namespace resolve are handled

fixtures/config-errors/errors.st.css

@@ -0,0 +1 @@
+.root::unknownPseudoElement {}

fixtures/config-errors/package.json

@@ -0,0 +1,4 @@
+{
+  "name": "test-project-with-config-errors",
+  "version": "1.0.0"
+}

fixtures/config-errors/stylable.config.js

@@ -0,0 +1,11 @@
+//@ts-check
+
+module.exports = {
+    defaultConfig() {
+        return {
+            resolveNamespace(namespace) {
+                throw new Error('resolveNamespace test error for namespace: ' + namespace);
+            },
+        };
+    },
+};

run-e2e-tests.js

@@ -31,6 +31,7 @@ async function runAllSuites() {
     await runSuite('latest');
     await runSuite('v5-with-no-config');
     await runSuite('v5-with-config');
+    await runSuite('config-errors');
 }
 
 runAllSuites();

test/e2e/config-errors/config.test.ts

@@ -0,0 +1,54 @@
+import fs from '@file-services/node';
+import vscode from 'vscode';
+import { expect } from 'chai';
+import path from 'path';
+
+suite('configuration with errors', function () {
+    this.timeout(60000);
+
+    let rootDir: string | null;
+
+    suiteSetup(() => {
+        rootDir = fs.dirname(fs.findClosestFileSync(__dirname, 'package.json')!);
+    });
+
+    async function getWorkingDocument(...testSubPath: string[]) {
+        const casesPath = path.join(rootDir!, 'fixtures', 'config-errors', ...testSubPath);
+        const ext = vscode.extensions.getExtension('wix.stylable-intelligence');
+
+        if (ext) {
+            const doc = await vscode.workspace.openTextDocument(casesPath);
+            await ext.activate();
+            return doc;
+        } else {
+            throw new Error('Where is my extension?!!');
+        }
+    }
+    function collectDiagnostics(source: 'stylable' | 'css', file: string) {
+        const diags = vscode.languages.getDiagnostics();
+        const res = [];
+
+        for (const [pathObj, fileDiags] of diags) {
+            for (const diag of fileDiags) {
+                if (diag.source === source && file === pathObj.fsPath) {
+                    res.push({
+                        message: diag.message,
+                        range: diag.range,
+                        severity: diag.severity,
+                        filePath: fs.realpathSync.native(pathObj.fsPath),
+                    });
+                }
+            }
+        }
+
+        return res;
+    }
+
+    test('should handle errors in resolve namespace config', async () => {
+        const testDoc = await getWorkingDocument('errors.st.css');
+        await vscode.window.showTextDocument(testDoc);
+        const diags = collectDiagnostics('stylable', testDoc.uri.fsPath);
+        // make sure extension functions correctly
+        expect(diags.length).to.not.eql(0);
+    });
+});

test/e2e/config-errors/index.ts

@@ -0,0 +1,5 @@
+import { collectAndRunTests } from '../../lsp-testkit/collect-and-run-tests';
+
+export function run() {
+    return collectAndRunTests({ testsRoot: __dirname, suiteName: 'config errors' });
+}