test: add test

Author: zirkelc

lib/deploy/stepFunctions/compileStateMachines.test.js

@@ -1742,12 +1742,27 @@ describe('#compileStateMachines', () => {
             States: {
               'Store inputs': {
                 Type: 'Pass',
-                Next: 'Output transformation',
+                Next: 'Get Current Price',
                 Assign: {
                   desiredPrice: '{% $states.input.desired_price %}',
                   maximumWait: '{% $states.input.max_days %}',
                 },
               },
+              'Get Current Price': {
+                Type: 'Task',
+                QueryLanguage: 'JSONata',
+                Resource: 'arn:aws:states:::lambda:invoke',
+                Next: 'Output transformation',
+                Arguments: {
+                  Payload: {
+                    product: '{% $states.context.Execution.Input.product %}',
+                  },
+                  FunctionName: 'arn:aws:lambda:<region>:123456789012:function:priceWatcher:$LATEST',
+                },
+                Assign: {
+                  currentPrice: '{% $states.result.Payload.current_price %}',
+                },
+              },
               'Output transformation': {
                 Type: 'Succeed',
                 Output: {
@@ -1771,13 +1786,23 @@ describe('#compileStateMachines', () => {
     expect(stateMachine.Properties.DefinitionString).not.to.haveOwnProperty('Fn::Sub');
     const stateMachineObj = JSON.parse(stateMachine.Properties.DefinitionString);
     expect(stateMachineObj.States).to.haveOwnProperty('Store inputs');
+    expect(stateMachineObj.States).to.haveOwnProperty('Get Current Price');
     expect(stateMachineObj.States).to.haveOwnProperty('Output transformation');
 
     expect(stateMachineObj.QueryLanguage).to.equal('JSONata');
     expect(stateMachineObj.States['Store inputs'].Assign).to.deep.equal({
       desiredPrice: '{% $states.input.desired_price %}',
       maximumWait: '{% $states.input.max_days %}',
     });
+    expect(stateMachineObj.States['Get Current Price'].Arguments).to.deep.equal({
+      Payload: {
+        product: '{% $states.context.Execution.Input.product %}',
+      },
+      FunctionName: 'arn:aws:lambda:<region>:123456789012:function:priceWatcher:$LATEST',
+    });
+    expect(stateMachineObj.States['Get Current Price'].Assign).to.deep.equal({
+      currentPrice: '{% $states.result.Payload.current_price %}',
+    });
     expect(stateMachineObj.States['Output transformation'].Output).to.deep.equal({
       lastName: "{% 'Last=>' & $states.input.customer.lastName %}",
       orderValue: '{% $states.input.order.total %}',