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-rw-r--r--packages/assert/src/index.ts2
-rw-r--r--packages/assert/test/assert_test.ts10
2 files changed, 12 insertions, 0 deletions
diff --git a/packages/assert/src/index.ts b/packages/assert/src/index.ts
index 56f663780..015ffe579 100644
--- a/packages/assert/src/index.ts
+++ b/packages/assert/src/index.ts
@@ -12,6 +12,8 @@ export const assert = {
},
isValidBaseUnitAmount(variableName: string, value: BigNumber) {
assert.isBigNumber(variableName, value);
+ const isNegative = value.lessThan(0);
+ this.assert(!isNegative, `${variableName} should not be a negative number, found value: ${value.toNumber()}` );
const hasDecimals = value.decimalPlaces() !== 0;
this.assert(
!hasDecimals,
diff --git a/packages/assert/test/assert_test.ts b/packages/assert/test/assert_test.ts
index ff337196d..732e99b3e 100644
--- a/packages/assert/test/assert_test.ts
+++ b/packages/assert/test/assert_test.ts
@@ -22,6 +22,16 @@ describe('Assertions', () => {
invalidInputs.forEach(input => expect(assert.isBigNumber.bind(assert, variableName, input)).to.throw());
});
});
+ describe('#isValidBaseUnitAmount', () => {
+ it('should not throw for valid input', () => {
+ const validInputs = [new BigNumber(23), new BigNumber('45000000')];
+ validInputs.forEach(input => expect(assert.isValidBaseUnitAmount.bind(assert, variableName, input)).to.not.throw());
+ });
+ it('should throw for invalid input', () => {
+ const invalidInputs = [0, undefined, new BigNumber(3.145), 3.145, new BigNumber(-400)];
+ invalidInputs.forEach(input => expect(assert.isValidBaseUnitAmount.bind(assert, variableName, input)).to.throw());
+ });
+ });
describe('#isString', () => {
it('should not throw for valid input', () => {
const validInputs = ['hello', 'goodbye'];