1 files changed, 8 insertions, 5 deletions
diff --git a/packages/subproviders/test/integration/ledger_subprovider_test.ts b/packages/subproviders/test/integration/ledger_subprovider_test.ts
index 70fd2cfce..d3e9d0fde 100644
--- a/packages/subproviders/test/integration/ledger_subprovider_test.ts
+++ b/packages/subproviders/test/integration/ledger_subprovider_test.ts
@@ -20,6 +20,8 @@ import { reportCallbackErrors } from '../utils/report_callback_errors';
 
 chaiSetup.configure();
 const expect = chai.expect;
+const DEFAULT_NUM_ACCOUNTS = 10;
+const EXPECTED_SIGNATURE_LENGTH = 132;
 
 async function ledgerEthereumNodeJsClientFactoryAsync(): Promise<LedgerEthereumClient> {
     const ledgerConnection = await TransportNodeHid.create();
@@ -41,7 +43,7 @@ describe('LedgerSubprovider', () => {
         it('returns default number of accounts', async () => {
             const accounts = await ledgerSubprovider.getAccountsAsync();
             expect(accounts[0]).to.not.be.an('undefined');
-            expect(accounts.length).to.be.equal(10);
+            expect(accounts.length).to.be.equal(DEFAULT_NUM_ACCOUNTS);
         });
         it('returns the expected accounts from a ledger set up with the test mnemonic', async () => {
             const accounts = await ledgerSubprovider.getAccountsAsync();
@@ -105,7 +107,7 @@ describe('LedgerSubprovider', () => {
             };
             const callback = reportCallbackErrors(done)((err: Error, response: JSONRPCResponsePayload) => {
                 expect(err).to.be.a('null');
-                expect(response.result.length).to.be.equal(10);
+                expect(response.result.length).to.be.equal(DEFAULT_NUM_ACCOUNTS);
                 done();
             });
             ledgerProvider.sendAsync(payload, callback);
@@ -123,7 +125,7 @@ describe('LedgerSubprovider', () => {
                 };
                 const callback = reportCallbackErrors(done)((err: Error, response: JSONRPCResponsePayload) => {
                     expect(err).to.be.a('null');
-                    expect(response.result.length).to.be.equal(132);
+                    expect(response.result.length).to.be.equal(EXPECTED_SIGNATURE_LENGTH);
                     expect(response.result.substr(0, 2)).to.be.equal('0x');
                     done();
                 });
@@ -143,7 +145,7 @@ describe('LedgerSubprovider', () => {
                 };
                 const callback = reportCallbackErrors(done)((err: Error, response: JSONRPCResponsePayload) => {
                     expect(err).to.be.a('null');
-                    expect(response.result.length).to.be.equal(132);
+                    expect(response.result.length).to.be.equal(EXPECTED_SIGNATURE_LENGTH);
                     expect(response.result.substr(0, 2)).to.be.equal('0x');
                     done();
                 });
@@ -197,7 +199,8 @@ describe('LedgerSubprovider', () => {
                 const callback = reportCallbackErrors(done)((err: Error, response: JSONRPCResponsePayload) => {
                     expect(err).to.be.a('null');
                     const result = response.result;
-                    expect(result.length).to.be.equal(66);
+                    const signedTxLength = 66;
+                    expect(result.length).to.be.equal(signedTxLength);
                     expect(result.substr(0, 2)).to.be.equal('0x');
                     done();
                 });