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-rw-r--r--src/ts/utils/assert.ts21
1 files changed, 12 insertions, 9 deletions
diff --git a/src/ts/utils/assert.ts b/src/ts/utils/assert.ts
index 2f52c6a3b..1baf572d1 100644
--- a/src/ts/utils/assert.ts
+++ b/src/ts/utils/assert.ts
@@ -1,30 +1,33 @@
import * as _ from 'lodash';
import * as BigNumber from 'bignumber.js';
-import Web3 = require('web3');
+import * as Web3 from 'web3';
import {SchemaValidator} from './schema_validator';
const HEX_REGEX = /^0x[0-9A-F]*$/i;
export const assert = {
- isBigNumber(variableName: string, value: BigNumber.BigNumber) {
+ isBigNumber(variableName: string, value: BigNumber.BigNumber): void {
const isBigNumber = _.isObject(value) && value.isBigNumber;
this.assert(isBigNumber, this.typeAssertionMessage(variableName, 'BigNumber', value));
},
- isString(variableName: string, value: string) {
+ isUndefined(value: any, variableName?: string): void {
+ this.assert(_.isUndefined(value), this.typeAssertionMessage(variableName, 'undefined', value));
+ },
+ isString(variableName: string, value: string): void {
this.assert(_.isString(value), this.typeAssertionMessage(variableName, 'string', value));
},
- isHexString(variableName: string, value: string) {
+ isHexString(variableName: string, value: string): void {
this.assert(_.isString(value) && HEX_REGEX.test(value),
this.typeAssertionMessage(variableName, 'HexString', value));
},
- isETHAddressHex(variableName: string, value: string) {
+ isETHAddressHex(variableName: string, value: string): void {
const web3 = new Web3();
this.assert(web3.isAddress(value), this.typeAssertionMessage(variableName, 'ETHAddressHex', value));
},
- isNumber(variableName: string, value: number) {
+ isNumber(variableName: string, value: number): void {
this.assert(_.isFinite(value), this.typeAssertionMessage(variableName, 'number', value));
},
- doesConformToSchema(variableName: string, value: object, schema: Schema) {
+ doesConformToSchema(variableName: string, value: object, schema: Schema): void {
const schemaValidator = new SchemaValidator();
const validationResult = schemaValidator.validate(value, schema);
const hasValidationErrors = validationResult.errors.length > 0;
@@ -33,12 +36,12 @@ Encountered: ${JSON.stringify(value, null, '\t')}
Validation errors: ${validationResult.errors.join(', ')}`;
this.assert(!hasValidationErrors, msg);
},
- assert(condition: boolean, message: string) {
+ assert(condition: boolean, message: string): void {
if (!condition) {
throw new Error(message);
}
},
- typeAssertionMessage(variableName: string, type: string, value: any) {
+ typeAssertionMessage(variableName: string, type: string, value: any): string {
return `Expected ${variableName} to be of type ${type}, encountered: ${value}`;
},
};