Add lambda and improve tests

.editorconfig

@@ -0,0 +1,147 @@
+root = true
+###############################
+# Core EditorConfig Options   #
+###############################
+# All files
+[*]
+indent_style = space
+
+# Microsoft .NET properties
+csharp_new_line_before_members_in_object_initializers = true
+
+# ReSharper properties
+resharper_wrap_object_and_collection_initializer_style = chop_always
+
+# XML project files
+[*.{csproj,vbproj,vcxproj,vcxproj.filters,proj,projitems,shproj}]
+indent_size = 2
+
+# XML config files
+[*.{props,targets,ruleset,config,nuspec,resx,vsixmanifest,vsct}]
+indent_size = 2
+
+# Code files
+[*.{cs,csx,vb,vbx}]
+dotnet_analyzer_diagnostic.category-Style.severity = warning
+indent_size = 4
+insert_final_newline = true
+charset = utf-8
+###############################
+# .NET Coding Conventions     #
+###############################
+[*.{cs,vb}]
+# Organize usings
+dotnet_sort_system_directives_first = true
+# this. preferences
+dotnet_style_qualification_for_field = false:silent
+dotnet_style_qualification_for_property = false:silent
+dotnet_style_qualification_for_method = false:silent
+dotnet_style_qualification_for_event = false:silent
+# Language keywords vs BCL types preferences
+dotnet_style_predefined_type_for_locals_parameters_members = true:silent
+dotnet_style_predefined_type_for_member_access = true:silent
+# Parentheses preferences
+dotnet_style_parentheses_in_arithmetic_binary_operators = always_for_clarity:silent
+dotnet_style_parentheses_in_relational_binary_operators = always_for_clarity:silent
+dotnet_style_parentheses_in_other_binary_operators = always_for_clarity:silent
+dotnet_style_parentheses_in_other_operators = never_if_unnecessary:silent
+# Modifier preferences
+dotnet_style_require_accessibility_modifiers = for_non_interface_members:silent
+dotnet_style_readonly_field = true:suggestion
+# Expression-level preferences
+dotnet_style_object_initializer = true:suggestion
+dotnet_style_collection_initializer = true:suggestion
+dotnet_style_explicit_tuple_names = true:suggestion
+dotnet_style_null_propagation = true:suggestion
+dotnet_style_coalesce_expression = true:suggestion
+dotnet_style_prefer_is_null_check_over_reference_equality_method = true:silent
+dotnet_style_prefer_inferred_tuple_names = true:suggestion
+dotnet_style_prefer_inferred_anonymous_type_member_names = true:suggestion
+dotnet_style_prefer_auto_properties = true:silent
+dotnet_style_prefer_conditional_expression_over_assignment = true:silent
+dotnet_style_prefer_conditional_expression_over_return = true:silent
+###############################
+# Naming Conventions          #
+###############################
+# Style Definitions
+dotnet_naming_style.uppercase_style.capitalization = all_upper
+# Use PascalCase for constant fields
+dotnet_naming_rule.constant_fields_should_be_pascal_case.severity = suggestion
+dotnet_naming_rule.constant_fields_should_be_pascal_case.symbols = constant_fields
+dotnet_naming_rule.constant_fields_should_be_pascal_case.style = uppercase_style
+dotnet_naming_symbols.constant_fields.applicable_kinds = field
+dotnet_naming_symbols.constant_fields.applicable_accessibilities = *
+dotnet_naming_symbols.constant_fields.required_modifiers = const
+dotnet_style_operator_placement_when_wrapping = beginning_of_line
+tab_width = 4
+end_of_line = crlf
+dotnet_diagnostic.CA1050.severity = suggestion
+dotnet_diagnostic.CA1848.severity = suggestion
+###############################
+# C# Coding Conventions       #
+###############################
+[*.cs]
+# var preferences
+csharp_style_var_for_built_in_types = true:silent
+csharp_style_var_when_type_is_apparent = true:silent
+csharp_style_var_elsewhere = true:silent
+# Expression-bodied members
+csharp_style_expression_bodied_methods = false:silent
+csharp_style_expression_bodied_constructors = false:silent
+csharp_style_expression_bodied_operators = false:silent
+csharp_style_expression_bodied_properties = true:silent
+csharp_style_expression_bodied_indexers = true:silent
+csharp_style_expression_bodied_accessors = true:silent
+# Pattern matching preferences
+csharp_style_pattern_matching_over_is_with_cast_check = true:suggestion
+csharp_style_pattern_matching_over_as_with_null_check = true:suggestion
+# Null-checking preferences
+csharp_style_throw_expression = true:suggestion
+csharp_style_conditional_delegate_call = true:suggestion
+# Modifier preferences
+csharp_preferred_modifier_order = public,private,protected,internal,static,extern,new,virtual,abstract,sealed,override,readonly,unsafe,volatile,async:suggestion
+# Expression-level preferences
+csharp_prefer_braces = true:silent
+csharp_style_deconstructed_variable_declaration = true:suggestion
+csharp_prefer_simple_default_expression = true:suggestion
+csharp_style_prefer_local_over_anonymous_function = true:suggestion
+csharp_style_inlined_variable_declaration = true:suggestion
+###############################
+# C# Formatting Rules         #
+###############################
+# New line preferences
+csharp_new_line_before_open_brace = all
+csharp_new_line_before_else = true
+csharp_new_line_before_catch = true
+csharp_new_line_before_finally = true
+csharp_new_line_before_members_in_object_initializers = true
+csharp_new_line_before_members_in_anonymous_types = true
+csharp_new_line_between_query_expression_clauses = true
+# Indentation preferences
+csharp_indent_case_contents = true
+csharp_indent_switch_labels = true
+csharp_indent_labels = flush_left
+# Space preferences
+csharp_space_after_cast = false
+csharp_space_after_keywords_in_control_flow_statements = true
+csharp_space_between_method_call_parameter_list_parentheses = false
+csharp_space_between_method_declaration_parameter_list_parentheses = false
+csharp_space_between_parentheses = false
+csharp_space_before_colon_in_inheritance_clause = true
+csharp_space_after_colon_in_inheritance_clause = true
+csharp_space_around_binary_operators = before_and_after
+csharp_space_between_method_declaration_empty_parameter_list_parentheses = false
+csharp_space_between_method_call_name_and_opening_parenthesis = false
+csharp_space_between_method_call_empty_parameter_list_parentheses = false
+# Wrapping preferences
+csharp_preserve_single_line_statements = true
+csharp_preserve_single_line_blocks = true
+csharp_using_directive_placement = outside_namespace:silent
+csharp_prefer_simple_using_statement = true:suggestion
+csharp_style_namespace_declarations = block_scoped:silent
+csharp_style_prefer_method_group_conversion = true:silent
+csharp_style_prefer_top_level_statements = true:silent
+dotnet_diagnostic.IDE0021.severity = silent
+dotnet_diagnostic.IDE0160.severity = silent
+dotnet_diagnostic.IDE0061.severity = silent
+dotnet_diagnostic.IDE0022.severity = silent

.gitignore

@@ -341,4 +341,5 @@ ASALocalRun/
 
 # End of https://www.gitignore.io/api/csharp
 
-codeanalysis.sarif.json
+codeanalysis.sarif.json
+coverage

Directory.Build.props

@@ -0,0 +1,10 @@
+<Project>
+  <PropertyGroup>
+    <AnalysisLevel>latest-Recommended</AnalysisLevel>
+    <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
+    <AnalysisMode>All</AnalysisMode>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+  </PropertyGroup>
+</Project>

README.md

@@ -0,0 +1,21 @@
+[![Build&Test](https://github.com/ohalay/serverless-containers/actions/workflows/ci.yml/badge.svg)](https://github.com/ohalay/serverless-containers/actions/workflows/ci.yml)
+![GitHub repo size](https://img.shields.io/github/repo-size/ohalay/serverless-containers)
+![GitHub contributors](https://img.shields.io/github/contributors/ohalay/serverless-containers)
+![GitHub stars](https://img.shields.io/github/stars/ohalay/serverless-containers?style=social)
+![GitHub forks](https://img.shields.io/github/forks/ohalay/serverless-containers?style=social)
+
+# Serverless integration tests
+A public feed with available products that updates every day
+
+## Business problem
+- Integration tests for serverless solution
+
+## Requirements
+* Docker
+
+## Implementation
+
+1. S3 public buckets with available documents
+2. Lambda updates document
+
+

Serverless.Lambda.Test/GlobalSuppressions.cs

@@ -0,0 +1,8 @@
+// This file is used by Code Analysis to maintain SuppressMessage
+// attributes that are applied to this project.
+// Project-level suppressions either have no target or are given
+// a specific target and scoped to a namespace, type, member, etc.
+
+using System.Diagnostics.CodeAnalysis;
+
+[assembly: SuppressMessage("Design", "CA1051:Do not declare visible instance fields", Justification = "<Pending>", Scope = "member", Target = "~F:Serverless.Lambda.Test.LocalStackFixture.Container")]

Serverless.Lambda.Test/LambdaHandlerTest.cs

@@ -0,0 +1,30 @@
+using Amazon.Lambda.TestUtilities;
+using Amazon.S3;
+using FluentAssertions;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Serverless.Lambda.Test;
+
+public class LambdaHandlerTest : IClassFixture<LocalStackFixture>
+{
+    private readonly LocalStackFixture fixture;
+
+    public LambdaHandlerTest(LocalStackFixture localStackFixture)
+        => fixture = localStackFixture;
+
+    [Fact]
+    public async Task HandleShoudPutDocToS3Test()
+    {
+        var client = new AmazonS3Client(new AmazonS3Config { ServiceURL = fixture.Container.GetConnectionString() });
+
+        var sut = new LambdaHandler(collection => collection
+          .AddSingleton<IAmazonS3>(client)
+          .PostConfigure<Config>(c => c.BucketName = LocalStackFixture.BUCKETNAME));
+
+        var docId = Guid.NewGuid().ToString();
+        await sut.Handle(new TestLambdaContext { AwsRequestId = docId });
+
+        var res = await client.GetObjectAsync(LocalStackFixture.BUCKETNAME, $"{docId}.txt");
+        _ = res.HttpStatusCode.Should().Be(System.Net.HttpStatusCode.OK);
+    }
+}

LocalStack.Test/LocalStackFixture.cs → Serverless.Lambda.Test/LocalStackFixture.cs

@@ -1,24 +1,19 @@
-using DotNet.Testcontainers.Builders;
 using Testcontainers.LocalStack;
 
-namespace LocalStack.Test;
+namespace Serverless.Lambda.Test;
 
 public class LocalStackFixture : IAsyncLifetime
 {
     public const string BUCKETNAME = "test-bucket";
 
     public readonly LocalStackContainer Container = new LocalStackBuilder()
-        .WithImage("localstack/localstack:latest")
-        .WithWaitStrategy(Wait.ForUnixContainer().UntilCommandIsCompleted(new[]
-        {
-            "awslocal", "s3api", "create-bucket", "--bucket", BUCKETNAME,
-        }))
+        .WithStartupCallback((container, ct) => container.ExecAsync(new[] { "awslocal", "s3api", "create-bucket", "--bucket", BUCKETNAME }, ct))
         .Build();
 
     static LocalStackFixture()
     {
-        Environment.SetEnvironmentVariable("AWS_ACCESS_KEY_ID", "my-test-key");
-        Environment.SetEnvironmentVariable("AWS_SECRET_ACCESS_KEY", "my-test-secret-key");
+        Environment.SetEnvironmentVariable("AWS_ACCESS_KEY_ID", "dummy");
+        Environment.SetEnvironmentVariable("AWS_SECRET_ACCESS_KEY", "dummy");
     }
 
     public Task DisposeAsync()

LocalStack.Test/LocalStack.Test.csproj → Serverless.Lambda.Test/Serverless.Lambda.Test.csproj

@@ -10,6 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Amazon.Lambda.TestUtilities" Version="2.0.0" />
     <PackageReference Include="AWSSDK.S3" Version="3.7.104.3" />
     <PackageReference Include="FluentAssertions" Version="6.11.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
@@ -25,4 +26,8 @@
     </PackageReference>
   </ItemGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\Serverless.Lambda\Serverless.Lambda.csproj" />
+  </ItemGroup>
+
 </Project>

Serverless.Lambda.Test/Usings.cs

@@ -0,0 +1 @@
+global using Xunit;

Serverless.Lambda/Config.cs

@@ -0,0 +1,4 @@
+public class Config
+{
+    public string BucketName { get; set; } = string.Empty;
+}

Serverless.Lambda/Executor.cs

@@ -0,0 +1,51 @@
+using System.Text;
+using Amazon.Lambda.Core;
+using Amazon.S3;
+using Amazon.S3.Model;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+
+namespace Serverless.Lambda;
+
+internal interface IExecutor
+{
+    Task Execute(ILambdaContext ctx);
+}
+
+public class Executor : IExecutor
+{
+    private readonly ILogger<Executor> logger;
+    private readonly IAmazonS3 s3Client;
+    private readonly Config config;
+
+    public Executor(
+        ILogger<Executor> logger,
+        IAmazonS3 s3Client,
+        IOptions<Config> options)
+    {
+        this.logger = logger;
+        this.s3Client = s3Client;
+        config = options.Value;
+    }
+    public async Task Execute(ILambdaContext ctx)
+    {
+        var content = "this is my test content";
+        var stream = new MemoryStream(Encoding.UTF8.GetBytes(content));
+
+        await Save(ctx.AwsRequestId, stream);
+
+        logger.LogInformation("File saved.");
+    }
+
+    private async Task Save(string key, Stream stream)
+    {
+        var request = new PutObjectRequest
+        {
+            BucketName = config.BucketName,
+            InputStream = stream,
+            Key = $"{key}.txt",
+        };
+
+        _ = await s3Client.PutObjectAsync(request);
+    }
+}