chore: fixed bug in a condition, added missing tests

Author: radekl

__tests__/main.test.ts

@@ -1201,7 +1201,7 @@ describe('Deploy CloudFormation Stack', () => {
     expect(mockExecuteChangeSet).toHaveBeenCalledTimes(0)
   })
 
-  test('deploys the stack with template', async () => {
+  test('deploys the stack with prefixed envs', async () => {
     const inputs: Inputs = {
       name: 'MockStack',
       template: 'template.yaml',
@@ -1225,6 +1225,8 @@ describe('Deploy CloudFormation Stack', () => {
 
     await run()
 
+    delete process.env.CFD_AdminNickname
+
     expect(core.setFailed).toHaveBeenCalledTimes(0)
     expect(mockDescribeStacks).toHaveBeenCalledTimes(2)
     expect(mockDescribeStacks).toHaveBeenNthCalledWith(1, {
@@ -1248,6 +1250,95 @@ describe('Deploy CloudFormation Stack', () => {
     expect(core.setOutput).toHaveBeenNthCalledWith(1, 'stack-id', mockStackId)
   })
 
+  test('deploys the stack with prefixed envs but no envs are passed', async () => {
+    const inputs: Inputs = {
+      name: 'MockStack',
+      template: 'template.yaml',
+      capabilities: 'CAPABILITY_IAM',
+      'parameter-overrides': 'AdminEmail=no-reply@amazon.com',
+      'envs-prefix-for-parameter-overrides': 'CFD_',
+      'no-fail-on-empty-changeset': '0',
+      'disable-rollback': '0',
+      'timeout-in-minutes': '',
+      'notification-arns': '',
+      'role-arn': '',
+      tags: '',
+      'termination-protection': ''
+    }
+
+    jest.spyOn(core, 'getInput').mockImplementation((name: string) => {
+      return inputs[name]
+    })
+
+    await run()
+
+    expect(core.setFailed).toHaveBeenCalledTimes(0)
+    expect(mockDescribeStacks).toHaveBeenCalledTimes(2)
+    expect(mockDescribeStacks).toHaveBeenNthCalledWith(1, {
+      StackName: 'MockStack'
+    })
+    expect(mockDescribeStacks).toHaveBeenNthCalledWith(2, {
+      StackName: mockStackId
+    })
+    expect(mockCreateStack).toHaveBeenNthCalledWith(1, {
+      StackName: 'MockStack',
+      TemplateBody: mockTemplate,
+      Capabilities: ['CAPABILITY_IAM'],
+      Parameters: [
+        { ParameterKey: 'AdminEmail', ParameterValue: 'no-reply@amazon.com' }
+      ],
+      DisableRollback: false,
+      EnableTerminationProtection: false
+    })
+    expect(core.setOutput).toHaveBeenCalledTimes(1)
+    expect(core.setOutput).toHaveBeenNthCalledWith(1, 'stack-id', mockStackId)
+  })
+
+  test('deploys the stack with prefixed envs but no other parameter overrides are passed', async () => {
+    const inputs: Inputs = {
+      name: 'MockStack',
+      template: 'template.yaml',
+      capabilities: 'CAPABILITY_IAM',
+      'envs-prefix-for-parameter-overrides': 'CFD_',
+      'no-fail-on-empty-changeset': '0',
+      'disable-rollback': '0',
+      'timeout-in-minutes': '',
+      'notification-arns': '',
+      'role-arn': '',
+      tags: '',
+      'termination-protection': ''
+    }
+
+    jest.spyOn(core, 'getInput').mockImplementation((name: string) => {
+      return inputs[name]
+    })
+
+    process.env = Object.assign(process.env, { CFD_AdminNickname: 'root' })
+
+    await run()
+
+    delete process.env.CFD_AdminNickname
+
+    expect(core.setFailed).toHaveBeenCalledTimes(0)
+    expect(mockDescribeStacks).toHaveBeenCalledTimes(2)
+    expect(mockDescribeStacks).toHaveBeenNthCalledWith(1, {
+      StackName: 'MockStack'
+    })
+    expect(mockDescribeStacks).toHaveBeenNthCalledWith(2, {
+      StackName: mockStackId
+    })
+    expect(mockCreateStack).toHaveBeenNthCalledWith(1, {
+      StackName: 'MockStack',
+      TemplateBody: mockTemplate,
+      Capabilities: ['CAPABILITY_IAM'],
+      Parameters: [{ ParameterKey: 'AdminNickname', ParameterValue: 'root' }],
+      DisableRollback: false,
+      EnableTerminationProtection: false
+    })
+    expect(core.setOutput).toHaveBeenCalledTimes(1)
+    expect(core.setOutput).toHaveBeenNthCalledWith(1, 'stack-id', mockStackId)
+  })
+
   test('error is caught by core.setFailed', async () => {
     mockDescribeStacks.mockReset()
     mockDescribeStacks.mockImplementation(() => {

dist/index.js

@@ -300,7 +300,7 @@ function run() {
             if (parameterOverrides) {
                 params.Parameters = (0, utils_1.parseParameters)(parameterOverrides.trim());
             }
-            if (envsPrefixForParameterOverrides.length > 0) {
+            if (envsPrefixForParameterOverrides) {
                 const envParameters = (0, utils_1.parseParametersFromEnvs)(envsPrefixForParameterOverrides, process.env);
                 params.Parameters = params.Parameters
                     ? [...params.Parameters, ...envParameters]

src/main.ts

@@ -132,7 +132,7 @@ export async function run(): Promise<void> {
       params.Parameters = parseParameters(parameterOverrides.trim())
     }
 
-    if (envsPrefixForParameterOverrides.length > 0) {
+    if (envsPrefixForParameterOverrides) {
       const envParameters = parseParametersFromEnvs(
         envsPrefixForParameterOverrides,
         process.env