Fix tests

Author: schaable

packages/hardhat-chai-matchers/test/changeEtherBalances.ts

@@ -146,7 +146,7 @@ describe("INTEGRATION: changeEtherBalances matcher", function () {
             )
           ).to.be.eventually.rejectedWith(
             AssertionError,
-            "Expected the balance changes of to satisfy the predicate, but they didn't"
+            "Expected the balance changes of the accounts to satisfy the predicate, but they didn't"
           );
         });
 
@@ -168,7 +168,7 @@ describe("INTEGRATION: changeEtherBalances matcher", function () {
             )
           ).to.be.eventually.rejectedWith(
             AssertionError,
-            "Expected the balance changes of to NOT satisfy the predicate, but they did"
+            "Expected the balance changes of the accounts to NOT satisfy the predicate, but they did"
           );
         });
 
@@ -269,6 +269,34 @@ describe("INTEGRATION: changeEtherBalances matcher", function () {
             `Expected the ether balance of ${sender.address} (the 1st address in the list) NOT to change by -200 wei`
           );
         });
+
+        it("arrays have different length", async function () {
+          expect(() =>
+            expect(
+              sender.sendTransaction({
+                to: receiver.address,
+                gasPrice: 1,
+                value: 200,
+              })
+            ).to.changeEtherBalances([sender], ["-200", 200])
+          ).to.throw(
+            Error,
+            "The number of accounts (1) is different than the number of expected balance changes (2)"
+          );
+
+          expect(() =>
+            expect(
+              sender.sendTransaction({
+                to: receiver.address,
+                gasPrice: 1,
+                value: 200,
+              })
+            ).to.changeEtherBalances([sender, receiver], ["-200"])
+          ).to.throw(
+            Error,
+            "The number of accounts (2) is different than the number of expected balance changes (1)"
+          );
+        });
       });
 
       it("shouldn't run the transaction twice", async function () {

packages/hardhat-chai-matchers/test/changeTokenBalance.ts

@@ -169,7 +169,7 @@ describe("INTEGRATION: changeTokenBalance and changeTokenBalances matchers", fun
             )
           ).to.be.rejectedWith(
             AssertionError,
-            /Expected the balance of MCK tokens for "0x\w{40}" satisfies the predicate, but it changed by 0 and violated the predicate/
+            /Expected the balance of MCK tokens for "0x\w{40}" to satisfy the predicate, but it didn't \(change by: 0 wei\)/
           );
         });
 
@@ -195,7 +195,7 @@ describe("INTEGRATION: changeTokenBalance and changeTokenBalances matchers", fun
             )
           ).to.be.rejectedWith(
             AssertionError,
-            /Expected the balance of MCK tokens for "0x\w{40}" NOT satisfies the predicate, but it did/
+            /Expected the balance of MCK tokens for "0x\w{40}" to NOT satisfy the predicate, but it did \(change by: 0 wei\)/
           );
         });
 
@@ -398,7 +398,7 @@ describe("INTEGRATION: changeTokenBalance and changeTokenBalances matchers", fun
             )
           ).to.be.rejectedWith(
             AssertionError,
-            /Expected the balance of MCK tokens for "0x\w{40}" satisfies the predicate, but it changed by 50 and violated the predicate/
+            /Expected the balance of MCK tokens for "0x\w{40}" to satisfy the predicate, but it didn't \(change by: 50 wei\)/
           );
         });
 
@@ -424,7 +424,7 @@ describe("INTEGRATION: changeTokenBalance and changeTokenBalances matchers", fun
             )
           ).to.be.rejectedWith(
             AssertionError,
-            /Expected the balance of MCK tokens for "0x\w{40}" NOT satisfies the predicate, but it did/
+            /Expected the balance of MCK tokens for "0x\w{40}" to NOT satisfy the predicate, but it did \(change by: 50 wei\)/
           );
         });