Merge branch 'development' into feature/0x.js/lowercase-addresses

1 files changed, 4 insertions, 1 deletions

diff --git a/packages/assert/src/index.ts b/packages/assert/src/index.ts
index a9d553487..40d083cb6 100644
--- a/packages/assert/src/index.ts
+++ b/packages/assert/src/index.ts
@@ -63,8 +63,11 @@ export const assert = {
         const isWeb3Provider = _.isFunction(value.send) || _.isFunction(value.sendAsync);
         this.assert(isWeb3Provider, this.typeAssertionMessage(variableName, 'Web3.Provider', value));
     },
-    doesConformToSchema(variableName: string, value: any, schema: Schema): void {
+    doesConformToSchema(variableName: string, value: any, schema: Schema, subSchemas?: Schema[]): void {
         const schemaValidator = new SchemaValidator();
+        if (!_.isUndefined(subSchemas)) {
+            _.map(subSchemas, schemaValidator.addSchema.bind(schemaValidator));
+        }
         const validationResult = schemaValidator.validate(value, schema);
         const hasValidationErrors = validationResult.errors.length > 0;
         const msg = `Expected ${variableName} to conform to schema ${schema.id}