Added blog post on testing. (#720)

* Added blog post on testing.

* Addressed Robert and Shane's feedback.

* Addressed Robert's feedback.

dev/docgen/docgen.go

@@ -84,6 +84,9 @@ var files = []file{
 	staticFile("assets/images/faster_grpc.png"),
 	staticFile("assets/images/benchmark.png"),
 
+	{dst: "blog/testing.html", markdown: "blog/testing.md", template: "blog_entry.html", title: "Service Weaver and Kubernetes", license: true},
+	staticFile("blog/testing/bank_failure.svg"),
+
 	staticFile("favicon.ico"),
 	staticFile("assets/css/blog.css"),
 	staticFile("assets/css/common.css"),

sim/internal/bank/store.go

@@ -26,9 +26,10 @@ type Store interface {
 	// Get gets the value of the provided key.
 	Get(ctx context.Context, key string) (int, error)
 
-	// Add atomically adds the provided delta to the provided key. Note that
-	// delta can be positive or negative. For example, Add(ctx, "foo", 10) adds
-	// 10 to "foo", while Add(ctx, "foo", -10) subtracts 10 from "foo".
+	// Add atomically adds the provided delta to the provided key and returns
+	// the resulting sum. Note that delta can be positive or negative. For
+	// example, Add(ctx, "foo", 10) adds 10 to "foo", while Add(ctx, "foo",
+	// -10) subtracts 10 from "foo".
 	Add(ctx context.Context, key string, delta int) (int, error)
 }
 

website/blog/index.html

@@ -15,6 +15,15 @@
 -->
 
 <!-- TODO: Avoid boilerplate. -->
+<div class="blog-listing">
+  <div>
+    <a class="blog-title" href="testing.html">Lower Test Toil With Better Local Testing</a>
+    <span class="blog-date">February 16, 2024</span>
+  </div>
+  <div class="blog-author">Michael Whittaker</div>
+  <div>How to catch more bugs, faster.</div>
+</div>
+
 <div class="blog-listing">
   <div>
     <a class="blog-title" href="improve_cloud_efficiency.html">Improve Cloud Efficiency with Service Weaver</a>
@@ -24,7 +33,6 @@
   <div>Why organizations can look to Service Weaver to improve cloud application efficiency.</div>
 </div>
 
-
 <div class="blog-listing">
   <div>
     <a class="blog-title" href="kubernetes.html">Service Weaver and Kubernetes</a>