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authorRemco Bloemen <remco@wicked.ventures>2018-08-25 09:54:15 +0800
committerRemco Bloemen <remco@wicked.ventures>2018-08-25 09:54:15 +0800
commitd652deea232417bbef223bde46d8c12e9922b277 (patch)
treef40e28c1231fa6646aae3354f3e58d98fa000e14 /packages/contracts/test/exchange/libs.ts
parent6b866d60533c7e46446bfb69639b07affd1aeb17 (diff)
parentf938c989e3e07161de20dd865baf59eecdde872d (diff)
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Merge branch 'fix/contracts/robustMatching' of github.com:0xProject/0x.js into fix/contracts/robustMatching
Diffstat (limited to 'packages/contracts/test/exchange/libs.ts')
-rw-r--r--packages/contracts/test/exchange/libs.ts72
1 files changed, 50 insertions, 22 deletions
diff --git a/packages/contracts/test/exchange/libs.ts b/packages/contracts/test/exchange/libs.ts
index 6c3305d1d..37234489e 100644
--- a/packages/contracts/test/exchange/libs.ts
+++ b/packages/contracts/test/exchange/libs.ts
@@ -71,29 +71,57 @@ describe('Exchange libs', () => {
// combinatorial tests in test/exchange/internal. They test specific edge
// cases that are not covered by the combinatorial tests.
describe('LibMath', () => {
- it('should return false if there is a rounding error of 0.1%', async () => {
- const numerator = new BigNumber(20);
- const denominator = new BigNumber(999);
- const target = new BigNumber(50);
- // rounding error = ((20*50/999) - floor(20*50/999)) / (20*50/999) = 0.1%
- const isRoundingError = await libs.publicIsRoundingError.callAsync(numerator, denominator, target);
- expect(isRoundingError).to.be.false();
- });
- it('should return false if there is a rounding of 0.09%', async () => {
- const numerator = new BigNumber(20);
- const denominator = new BigNumber(9991);
- const target = new BigNumber(500);
- // rounding error = ((20*500/9991) - floor(20*500/9991)) / (20*500/9991) = 0.09%
- const isRoundingError = await libs.publicIsRoundingError.callAsync(numerator, denominator, target);
- expect(isRoundingError).to.be.false();
+ describe('isRoundingError', () => {
+ it('should return true if there is a rounding error of 0.1%', async () => {
+ const numerator = new BigNumber(20);
+ const denominator = new BigNumber(999);
+ const target = new BigNumber(50);
+ // rounding error = ((20*50/999) - floor(20*50/999)) / (20*50/999) = 0.1%
+ const isRoundingError = await libs.publicIsRoundingErrorFloor.callAsync(numerator, denominator, target);
+ expect(isRoundingError).to.be.true();
+ });
+ it('should return false if there is a rounding of 0.09%', async () => {
+ const numerator = new BigNumber(20);
+ const denominator = new BigNumber(9991);
+ const target = new BigNumber(500);
+ // rounding error = ((20*500/9991) - floor(20*500/9991)) / (20*500/9991) = 0.09%
+ const isRoundingError = await libs.publicIsRoundingErrorFloor.callAsync(numerator, denominator, target);
+ expect(isRoundingError).to.be.false();
+ });
+ it('should return true if there is a rounding error of 0.11%', async () => {
+ const numerator = new BigNumber(20);
+ const denominator = new BigNumber(9989);
+ const target = new BigNumber(500);
+ // rounding error = ((20*500/9989) - floor(20*500/9989)) / (20*500/9989) = 0.011%
+ const isRoundingError = await libs.publicIsRoundingErrorFloor.callAsync(numerator, denominator, target);
+ expect(isRoundingError).to.be.true();
+ });
});
- it('should return true if there is a rounding error of 0.11%', async () => {
- const numerator = new BigNumber(20);
- const denominator = new BigNumber(9989);
- const target = new BigNumber(500);
- // rounding error = ((20*500/9989) - floor(20*500/9989)) / (20*500/9989) = 0.011%
- const isRoundingError = await libs.publicIsRoundingError.callAsync(numerator, denominator, target);
- expect(isRoundingError).to.be.true();
+ describe('isRoundingErrorCeil', () => {
+ it('should return true if there is a rounding error of 0.1%', async () => {
+ const numerator = new BigNumber(20);
+ const denominator = new BigNumber(1001);
+ const target = new BigNumber(50);
+ // rounding error = (ceil(20*50/1001) - (20*50/1001)) / (20*50/1001) = 0.1%
+ const isRoundingError = await libs.publicIsRoundingErrorCeil.callAsync(numerator, denominator, target);
+ expect(isRoundingError).to.be.true();
+ });
+ it('should return false if there is a rounding of 0.09%', async () => {
+ const numerator = new BigNumber(20);
+ const denominator = new BigNumber(10009);
+ const target = new BigNumber(500);
+ // rounding error = (ceil(20*500/10009) - (20*500/10009)) / (20*500/10009) = 0.09%
+ const isRoundingError = await libs.publicIsRoundingErrorCeil.callAsync(numerator, denominator, target);
+ expect(isRoundingError).to.be.false();
+ });
+ it('should return true if there is a rounding error of 0.11%', async () => {
+ const numerator = new BigNumber(20);
+ const denominator = new BigNumber(10011);
+ const target = new BigNumber(500);
+ // rounding error = (ceil(20*500/10011) - (20*500/10011)) / (20*500/10011) = 0.11%
+ const isRoundingError = await libs.publicIsRoundingErrorCeil.callAsync(numerator, denominator, target);
+ expect(isRoundingError).to.be.true();
+ });
});
});