first implementation

packages/test-config/vitest.config.base.ts

@@ -0,0 +1,93 @@
+/**
+ * Base Vitest configuration for shared packages
+ *
+ * Usage in package vitest.config.ts:
+ * import { defineConfig, mergeConfig } from 'vitest/config';
+ * import baseConfig from '@manacore/test-config/vitest-base';
+ *
+ * export default mergeConfig(
+ *   baseConfig,
+ *   defineConfig({
+ *     // Your overrides
+ *   })
+ * );
+ */
+
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+	test: {
+		// Test file patterns
+		include: ['src/**/*.{test,spec}.{js,ts}'],
+
+		// Exclude patterns
+		exclude: ['node_modules/**', 'dist/**', '**/*.d.ts', '**/__tests__/fixtures/**', '**/__tests__/utils/**'],
+
+		// Test environment
+		environment: 'node',
+
+		// Global test APIs (describe, it, expect, etc.)
+		globals: true,
+
+		// Setup files
+		setupFiles: ['./vitest.setup.ts'],
+
+		// Coverage configuration
+		coverage: {
+			provider: 'v8',
+			reporter: ['text', 'json', 'html', 'lcov'],
+			include: ['src/**/*.{js,ts}'],
+			exclude: [
+				'**/*.d.ts',
+				'**/*.config.*',
+				'**/__tests__/**',
+				'**/node_modules/**',
+				'**/dist/**',
+				'**/coverage/**',
+				'**/*.types.ts',
+				'**/index.ts', // Usually just re-exports
+			],
+			thresholds: {
+				lines: 80,
+				functions: 80,
+				branches: 80,
+				statements: 80,
+			},
+			all: true,
+		},
+
+		// Test timeout
+		testTimeout: 10000,
+
+		// Hooks timeout
+		hookTimeout: 10000,
+
+		// Teardown timeout
+		teardownTimeout: 10000,
+
+		// Watch mode ignore patterns
+		watchExclude: ['**/node_modules/**', '**/dist/**', '**/coverage/**'],
+
+		// Reporters
+		reporters: process.env.CI ? ['verbose', 'github-actions'] : ['verbose'],
+
+		// Mock reset
+		clearMocks: true,
+		mockReset: true,
+		restoreMocks: true,
+
+		// Fail on console errors
+		onConsoleLog: (log: string, type: 'stdout' | 'stderr'): false | void => {
+			if (type === 'stderr' && log.includes('Error')) {
+				return false; // Fail test on console errors
+			}
+		},
+	},
+
+	// Resolve aliases
+	resolve: {
+		alias: {
+			'@': '/src',
+		},
+	},
+});