first commit

test/unit/error_handler_factory.test.js

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+'use strict';
+
+const assert = require('assert');
+const errorHandlerFactory = require('../../app/services/error_handler_factory');
+const ErrorHandler = require('../../app/services/error_handler');
+const { codeToCondition } = require('../../app/postgresql/error_codes');
+
+let rateLimitError = new Error(
+    'You are over platform\'s limits. Please contact us to know more details'
+);
+rateLimitError.http_status = 429;
+rateLimitError.context = 'limit';
+rateLimitError.detail = 'rate-limit';
+
+const cases = [
+    {
+        title: 'postgres error',
+        error: new Error(codeToCondition['02000'])
+    },
+    {
+        title: 'rate limit error',
+        error: rateLimitError
+    }
+];
+
+describe('error-handler-factory', function () {
+    cases.forEach(({ title, error }) => {
+        it(title, function () {
+            const errorHandler = errorHandlerFactory(error);
+            const expectedError = new ErrorHandler({
+                message: error.message,
+                context: error.context,
+                detail: error.detail,
+                hint: error.hint,
+                http_status: error.http_status,
+                name: codeToCondition[error.code] || error.name
+            });
+
+            assert.deepEqual(errorHandler, expectedError);
+        });
+    });
+
+    it('timeout error', function() {
+        const error = new Error('statement timeout');
+        const errorHandler = errorHandlerFactory(error);
+        const expectedError = new ErrorHandler({
+            message: 'You are over platform\'s limits: SQL query timeout error.' +
+                ' Refactor your query before running again or contact CARTO support for more details.',
+            context: 'limit',
+            detail: 'datasource',
+            http_status: 429
+        });
+
+        assert.deepEqual(errorHandler, expectedError);
+    });
+
+    it('permission denied error', function() {
+        const error = new Error('permission denied');
+        const errorHandler = errorHandlerFactory(error);
+        const expectedError = new ErrorHandler({
+            message: error.message,
+            context: error.context,
+            detail: error.detail,
+            hint: error.hint,
+            http_status: 403,
+            name: codeToCondition[error.code] || error.name
+        });
+
+        assert.deepEqual(errorHandler, expectedError);
+    });
+});