1 files changed, 63 insertions, 0 deletions
diff --git a/packages/order-utils/test/utils/test_order_factory.ts b/packages/order-utils/test/utils/test_order_factory.ts
new file mode 100644
index 000000000..2c5d8cf61
--- /dev/null
+++ b/packages/order-utils/test/utils/test_order_factory.ts
@@ -0,0 +1,63 @@
+import { Order, OrderRelevantState, SignedOrder } from '@0xproject/types';
+import { BigNumber } from '@0xproject/utils';
+import * as _ from 'lodash';
+
+import { constants, orderFactory } from '../../src';
+
+const BASE_TEST_ORDER: Order = orderFactory.createOrder(
+    constants.NULL_ADDRESS,
+    constants.NULL_ADDRESS,
+    constants.NULL_ADDRESS,
+    constants.ZERO_AMOUNT,
+    constants.ZERO_AMOUNT,
+    constants.ZERO_AMOUNT,
+    constants.NULL_BYTES,
+    constants.ZERO_AMOUNT,
+    constants.NULL_BYTES,
+    constants.NULL_ADDRESS,
+    constants.NULL_ADDRESS,
+);
+const BASE_TEST_SIGNED_ORDER: SignedOrder = {
+    ...BASE_TEST_ORDER,
+    signature: constants.NULL_BYTES,
+};
+const BASE_TEST_ORDER_RELEVANT_STATE: OrderRelevantState = {
+    makerBalance: constants.ZERO_AMOUNT,
+    makerProxyAllowance: constants.ZERO_AMOUNT,
+    makerFeeBalance: constants.ZERO_AMOUNT,
+    makerFeeProxyAllowance: constants.ZERO_AMOUNT,
+    filledTakerAssetAmount: constants.ZERO_AMOUNT,
+    remainingFillableMakerAssetAmount: constants.ZERO_AMOUNT,
+    remainingFillableTakerAssetAmount: constants.ZERO_AMOUNT,
+};
+
+export const testOrderFactory = {
+    generateTestSignedOrder(partialOrder: Partial<SignedOrder>): SignedOrder {
+        return transformObject(BASE_TEST_SIGNED_ORDER, partialOrder);
+    },
+    generateTestSignedOrders(partialOrder: Partial<SignedOrder>, numOrders: number): SignedOrder[] {
+        const baseTestOrders = generateArrayOfInput(BASE_TEST_SIGNED_ORDER, numOrders);
+        return transformObjects(baseTestOrders, partialOrder);
+    },
+    generateTestOrderRelevantState(partialOrderRelevantState: Partial<OrderRelevantState>): OrderRelevantState {
+        return transformObject(BASE_TEST_ORDER_RELEVANT_STATE, partialOrderRelevantState);
+    },
+    generateTestOrderRelevantStates(
+        partialOrderRelevantState: Partial<OrderRelevantState>,
+        numOrderStates: number,
+    ): OrderRelevantState[] {
+        const baseTestOrderStates = generateArrayOfInput(BASE_TEST_ORDER_RELEVANT_STATE, numOrderStates);
+        return transformObjects(baseTestOrderStates, partialOrderRelevantState);
+    },
+};
+
+function generateArrayOfInput<T>(input: T, rangeLength: number): T[] {
+    return _.map(_.range(rangeLength), () => input);
+}
+function transformObject<T>(input: T, transformation: Partial<T>): T {
+    const copy = _.cloneDeep(input);
+    return _.assign(copy, transformation);
+}
+function transformObjects<T>(inputs: T[], transformation: Partial<T>): T[] {
+    return _.map(inputs, input => transformObject(input, transformation));
+}