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import { loadTests } from "./utils.js";
import { formatEther, formatUnits, parseEther, parseUnits } from "../index.js";
import type { TestCaseUnit } from "./types.js";
describe("Tests unit conversion", function() {
const tests = loadTests<TestCaseUnit>("units");
const units = [
{ unit: "ether", format: "ether_format", decimals: 18 },
{ unit: "kwei", format: "kwei_format", decimals: 3 },
{ unit: "mwei", format: "mwei_format", decimals: 6 },
{ unit: "gwei", format: "gwei_format", decimals: 9 },
{ unit: "szabo", format: "szabo_format", decimals: 12 },
{ unit: "finney", format: "finney_format", decimals: 15 },
];
for (const { unit, format, decimals } of units) {
for (const test of tests) {
const str = <string | null>((<any>test)[format]);
if (str == null) { continue; }
it(`converts wei to ${ unit } string: ${ test.name }`, function() {
const wei = BigInt(test.wei);
if (decimals === 18) {
assert.equal(formatEther(wei), str, "formatEther");
assert.equal(formatUnits(wei), str, "formatUnits");
}
assert.equal(formatUnits(wei, unit), str, `formatUnits(${ unit })`);
assert.equal(formatUnits(wei, decimals), str, `formatUnits(${ decimals })`);
});
}
for (const test of tests) {
const str = <string | null>((<any>test)[format]);
if (str == null) { continue; }
it(`converts ${ format } string to wei: ${ test.name }`, function() {
const wei = BigInt(test.wei);
if (decimals === 18) {
assert.equal(parseEther(str), wei, "parseEther");
assert.equal(parseUnits(str), wei, "parseUnits");
}
assert.equal(parseUnits(str, unit), wei, `parseUnits(${ unit })`);
assert.equal(parseUnits(str, decimals), wei, `parseUnits(${ decimals })`);
});
}
}
});
describe("Tests bad unit conversion", function() {
it("correctly fails to convert non-string value", function() {
assert.throws(() => {
parseUnits(<any>3, "ether");
}, (error: any) => {
return error.message.startsWith("value must be a string");
});
});
it("correctly fails to convert unknown unit", function() {
assert.throws(() => {
parseUnits("3", "foobar");
}, (error: any) => {
return error.message.startsWith("invalid unit");
});
});
});
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