safemath tests enabled and updated

libs/remix-tests/tests/examples_4/SafeMath_test.sol

@@ -23,7 +23,7 @@ contract SafeMathTest {
   function safeMultiplicationShouldRevert() public returns (bool) {
     uint256 a = 4;
     uint256 b = 2 ** 256 - 1;
-    (bool success, bytes memory data) = address(safemathproxy).call.gas(40000).value(0)(abi.encode("mulProxy, [a, b]"));
+    (bool success, bytes memory data) = address(safemathproxy).call{gas:40000, value:0}(abi.encode("mulProxy, [a, b]"));
     return Assert.equal(
       success,
       false,
@@ -34,7 +34,7 @@ contract SafeMathTest {
   function safeDivisionByZeroShouldRevert() public returns (bool) {
     uint256 a = 4;
     uint256 b = 0;
-    (bool success, bytes memory data) = address(safemathproxy).call.gas(40000).value(0)(abi.encode("divProxy, [a, b]"));
+    (bool success, bytes memory data) = address(safemathproxy).call{gas:40000, value:0}(abi.encode("divProxy, [a, b]"));
     return Assert.equal(
       success,
       false,
@@ -53,7 +53,7 @@ contract SafeMathTest {
   }
 
   function safeSubtractShouldRevert() public returns (bool) {
-    (bool success, bytes memory data) = address(safemathproxy).call.gas(40000).value(0)(abi.encode("subProxy, [0, 1]"));
+    (bool success, bytes memory data) = address(safemathproxy).call{gas:40000, value:0}(abi.encode("subProxy, [0, 1]"));
     return Assert.equal(
       success,
       false,
@@ -61,6 +61,22 @@ contract SafeMathTest {
     );
   }
 
+  function safeSubtractShouldRevertUsingTryCatch() public returns (bool) {
+    try safemathproxy.subProxy(0, 1) returns ( uint256 res) {
+        Assert.ok(false, "Should revert");
+    } catch (bytes memory /*lowLevelData*/) { 
+        Assert.ok(true, "safe subtract should revert");         
+    }  
+  }
+
+  function safeSubtractShouldNotRevert() public returns (bool) {
+    try safemathproxy.subProxy(3, 2) returns ( uint256 res) {
+        Assert.equal(res, 1, "should be equal to 1");
+    } catch (bytes memory /*lowLevelData*/) { 
+        Assert.ok(false, "safe subtract should not revert");
+    }  
+  } 
+
   function unsafeAdditionShouldOverflow() public returns (bool) {
     uint256 a = 1;
     uint256 b = 2 ** 256 - 1;
@@ -70,7 +86,7 @@ contract SafeMathTest {
   function safeAdditionShouldRevert() public returns (bool) {
     uint256 a = 1;
     uint256 b = 2 ** 256 - 1;
-    (bool success, bytes memory data) = address(safemathproxy).call.gas(40000).value(0)(abi.encode("addProxy, [a, b]"));
+    (bool success, bytes memory data) = address(safemathproxy).call{gas:40000, value:0}(abi.encode("addProxy, [a, b]"));
     return Assert.equal(
       success,
       false,
@@ -81,7 +97,7 @@ contract SafeMathTest {
   function safeModulusShouldRevert() public returns (bool) {
     uint256 a = 1;
     uint256 b = 0;
-    (bool success, bytes memory data) = address(safemathproxy).call.gas(40000).value(0)(abi.encode("modProxy, [a, b]"));
+    (bool success, bytes memory data) = address(safemathproxy).call{gas:40000, value:0}(abi.encode("modProxy, [a, b]"));
     return Assert.equal(
       success,
       false,

libs/remix-tests/tests/testRunner.spec.ts

@@ -393,6 +393,26 @@ describe('testRunner', () => {
     })
 
     //Test signed/unsigned integer weight
+    describe('test SafeMath library', () => {
+      const filename: string = __dirname + '/examples_4/SafeMath_test.sol'
+
+      beforeAll(done => {
+        compileAndDeploy(filename, function (_err: Error | null | undefined, compilationData: object, contracts: any, asts: any, accounts: string[]) {
+          runTest('SafeMathTest', contracts.SafeMathTest, compilationData[filename]['SafeMathTest'], asts[filename], { accounts }, testCallback, resultsCallback(done))
+        })
+      })
+
+      afterAll(() => { tests = [] })
+
+      it('should have 10 passing tests', () => {
+        assert.equal(results.passingNum, 10)
+      })
+      it('should have 0 failing tests', () => {
+        assert.equal(results.failureNum, 0)
+      })
+    })
+
+    //Test signed/unsigned integer weight
     describe('test number weight', () => {
       const filename: string = __dirname + '/number/number_test.sol'