public void FunctionAppExecutionShouldStopIfNoPreviousDependenciesAreInstalled()
{
try
{
// Test case setup
var requirementsDirectoryName = "BasicRequirements";
var functionFolderPath = Path.Combine(_dependencyManagementDirectory, requirementsDirectoryName, "FunctionDirectory");
var functionAppRoot = Path.Combine(_dependencyManagementDirectory, requirementsDirectoryName);
var managedDependenciesFolderPath = GetManagedDependenciesPath(functionAppRoot);
var functionLoadRequest = GetFuncLoadRequest(functionFolderPath, true);
// Create DependencyManager and configure it to mimic being unable to reach
// the PSGallery to retrieve the latest module version
var dependencyManager = new TestDependencyManager2();
dependencyManager.GetLatestModuleVersionThrows = true;
// Trying to initialize the dependencyManager should throw
var exception = Assert.Throws <DependencyInstallationException>(() => dependencyManager.Initialize(functionLoadRequest));
Assert.Contains("Fail to install FunctionApp dependencies.", exception.Message);
Assert.Contains("Fail to connect to the PSGallery", exception.Message);
// Dependencies.Count should be 0, and DependencyManager.DependenciesPath should null
Assert.True(DependencyManager.Dependencies.Count == 0);
Assert.Null(DependencyManager.DependenciesPath);
}
finally
{
TestCaseCleanup();
}
}
public void FunctionAppExecutionShouldContinueIfPreviousDependenciesExist()
{
string AzModulePath = null;
try
{
// Test case setup
var requirementsDirectoryName = "BasicRequirements";
var functionFolderPath = Path.Combine(_dependencyManagementDirectory, requirementsDirectoryName, "FunctionDirectory");
var functionAppRoot = Path.Combine(_dependencyManagementDirectory, requirementsDirectoryName);
var managedDependenciesFolderPath = GetManagedDependenciesPath(functionAppRoot);
var functionLoadRequest = GetFuncLoadRequest(functionFolderPath, true);
// Create DependencyManager and configure it to mimic being unable to reach
// the PSGallery to retrive the latest module version
var dependencyManager = new TestDependencyManager2();
dependencyManager.GetLatestModuleVersionThrows = true;
// Create a path to mimic an existing installation of the Az module
AzModulePath = Path.Join(managedDependenciesFolderPath, "Az");
if (Directory.Exists(AzModulePath))
{
Directory.Delete(AzModulePath, true);
}
Directory.CreateDirectory(AzModulePath);
// Initializing the dependency manager should not throw even though we were not able
// to connect to the PSGallery--given that a previous installation of the Az module is present
dependencyManager.Initialize(functionLoadRequest);
// Dependencies.Count should be 0 (since no dependencies will be installed)
Assert.True(DependencyManager.Dependencies.Count == 0);
// Validate that DependencyManager.DependenciesPath is set, so
// Get-Module can find the existing dependencies installed
var dependenciesPathIsValid = managedDependenciesFolderPath.Equals(DependencyManager.DependenciesPath,
StringComparison.CurrentCultureIgnoreCase);
Assert.True(dependenciesPathIsValid);
}
finally
{
if (Directory.Exists(AzModulePath))
{
Directory.Delete(AzModulePath, true);
}
TestCaseCleanup();
}
}
