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Add test cases

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This commit is contained in:
Remco Bloemen
2018-05-28 13:55:26 +02:00
committed by Greg Hysen
parent 27351c9a90
commit 7f21872510
1 changed files with 132 additions and 16 deletions
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148
packages/contracts/test/libraries/lib_mem.ts
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@@ -41,28 +41,144 @@ describe('LibMem', () => {
Uint8Array.from(memory).copyWithin(dest, source, source + length);
// Test vectors: destination, source, length, job description
const tests: Array<[number, number, number, string]> = [
type Tests = Array<[number, number, number, string]>;
const test = (tests: Tests) =>
tests.forEach(([dest, source, length, job]) =>
it(job, async () => {
const expected = refMemcpy(memory, dest, source, length);
const resultStr = await testLibMem.testMemcpy.callAsync(
memHex,
new BigNumber(dest),
new BigNumber(source),
new BigNumber(length),
);
const result = fromHex(resultStr);
expect(result).to.deep.equal(expected);
}),
);
describe('copies forward', () => test([
[128, 0, 0, 'zero bytes'],
[128, 0, 1, 'one byte'],
[128, 0, 11, 'eleven bytes'],
[128, 0, 31, 'thirty-one bytes'],
[128, 0, 32, 'one word'],
[128, 0, 33, 'one word and one byte'],
[128, 0, 72, 'two words and eight bytes'],
[128, 0, 100, 'three words and four bytes'],
];
]));
describe('copies forward within one word', () => test([
[16, 0, 0, 'zero bytes'],
[16, 0, 1, 'one byte'],
[16, 0, 11, 'eleven bytes'],
[16, 0, 16, 'sixteen bytes'],
]));
describe('copies forward with one byte overlap', () => test([
[0, 0, 1, 'one byte'],
[10, 0, 11, 'eleven bytes'],
[30, 0, 31, 'thirty-one bytes'],
[31, 0, 32, 'one word'],
[32, 0, 33, 'one word and one byte'],
[71, 0, 72, 'two words and eight bytes'],
[99, 0, 100, 'three words and four bytes'],
]));
describe('copies forward with thirty-one bytes overlap', () => test([
[0, 0, 31, 'thirty-one bytes'],
[1, 0, 32, 'one word'],
[2, 0, 33, 'one word and one byte'],
[41, 0, 72, 'two words and eight bytes'],
[69, 0, 100, 'three words and four bytes'],
]));
describe('copies forward with one word overlap', () => test([
[0, 0, 32, 'one word'],
[1, 0, 33, 'one word and one byte'],
[41, 0, 72, 'two words and eight bytes'],
[69, 0, 100, 'three words and four bytes'],
]));
describe('copies forward with one word and one byte overlap', () => test([
[0, 0, 33, 'one word and one byte'],
[40, 0, 72, 'two words and eight bytes'],
[68, 0, 100, 'three words and four bytes'],
]));
describe('copies forward with two words overlap', () => test([
[0, 0, 64, 'two words'],
[8, 0, 72, 'two words and eight bytes'],
[36, 0, 100, 'three words and four bytes'],
]));
describe('copies forward within one word and one byte overlap', () => test([
[0, 0, 1, 'one byte'],
[10, 0, 11, 'eleven bytes'],
[15, 0, 16, 'sixteen bytes'],
]));
describe('copies backward', () => test([
[0, 128, 0, 'zero bytes'],
[0, 128, 1, 'one byte'],
[0, 128, 11, 'eleven bytes'],
[0, 128, 31, 'thirty-one bytes'],
[0, 128, 32, 'one word'],
[0, 128, 33, 'one word and one byte'],
[0, 128, 72, 'two words and eight bytes'],
[0, 128, 100, 'three words and four bytes'],
]));
describe('copies backward within one word', () => test([
[0, 16, 0, 'zero bytes'],
[0, 16, 1, 'one byte'],
[0, 16, 11, 'eleven bytes'],
[0, 16, 16, 'sixteen bytes'],
]));
describe('copies backward with one byte overlap', () => test([
[0, 0, 1, 'one byte'],
[0, 10, 11, 'eleven bytes'],
[0, 30, 31, 'thirty-one bytes'],
[0, 31, 32, 'one word'],
[0, 32, 33, 'one word and one byte'],
[0, 71, 72, 'two words and eight bytes'],
[0, 99, 100, 'three words and four bytes'],
]));
describe('copies backward with thirty-one bytes overlap', () => test([
[0, 0, 31, 'thirty-one bytes'],
[0, 1, 32, 'one word'],
[0, 2, 33, 'one word and one byte'],
[0, 41, 72, 'two words and eight bytes'],
[0, 69, 100, 'three words and four bytes'],
]));
describe('copies backward with one word overlap', () => test([
[0, 0, 32, 'one word'],
[0, 1, 33, 'one word and one byte'],
[0, 41, 72, 'two words and eight bytes'],
[0, 69, 100, 'three words and four bytes'],
]));
describe('copies backward with one word and one byte overlap', () => test([
[0, 0, 33, 'one word and one byte'],
[0, 40, 72, 'two words and eight bytes'],
[0, 68, 100, 'three words and four bytes'],
]));
describe('copies backward with two words overlap', () => test([
[0, 0, 64, 'two words'],
[0, 8, 72, 'two words and eight bytes'],
[0, 36, 100, 'three words and four bytes'],
]));
describe('copies forward within one word and one byte overlap', () => test([
[0, 0, 1, 'one byte'],
[0, 10, 11, 'eleven bytes'],
[0, 15, 16, 'sixteen bytes'],
]));
// Construct test cases
tests.forEach(([dest, source, length, job]) =>
it(`copies ${job}`, async () => {
const expected = refMemcpy(memory, dest, source, length);
const resultStr = await testLibMem.testMemcpy.callAsync(
memHex,
new BigNumber(dest),
new BigNumber(source),
new BigNumber(length),
);
const result = fromHex(resultStr);
expect(result).to.deep.equal(expected);
}),
);
});
});