Carefully work through footer messaging.

- Made a careful choice about what to show in each environment.
- Added tests.

client/template.go

@@ -335,10 +335,10 @@ application footer
 // bottom of all pages.
 func applicationFooter() string {
 	appName := os.Getenv(applicationNameEnvVar)
+	appEnv := os.Getenv(applicationEnvEnvVar)
 	appVersion := os.Getenv(applicationVersionEnvVar)
 	appInstance := os.Getenv(applicationInstanceEnvVar)
 	appBuild := os.Getenv(applicationBuildEnvVar)
-	appEnv := os.Getenv(applicationEnvEnvVar)
 
 	if appName == "" {
 		appName = brandName
@@ -348,30 +348,26 @@ func applicationFooter() string {
 		appEnv = "local"
 	}
 
-	if appVersion == "" {
-		if appEnv == "dev" {
-			appVersion = " <CI latest>"
-		} else {
-			appVersion = " <dev build>"
-		}
-	} else {
+	if appVersion != "" {
 		appVersion = " " + appVersion
 	}
-
 	if len(appBuild) >= 7 {
-		appBuild = " " + appBuild[:7]
-	} else {
-		appBuild = ""
+		appBuild = appBuild[:7]
 	}
 
-	if appInstance == "" {
-		appInstance = " <local>"
-	} else {
-		if appEnv == "prd" {
-			appInstance = " <" + appInstance + ">"
-		} else {
-			appInstance = " <" + appEnv + appBuild + ">"
-		}
+	if appInstance != "" {
+		appInstance = " (dyno " + appInstance + ")"
+	}
+
+	switch appEnv {
+	case "local":
+		return "[" + appName + " local]"
+	case "dev":
+		return "[" + appName + " CI/CD]"
+	case "stg":
+		return "[" + appName + appVersion + " <" + appBuild + ">]"
+	case "prd":
+		return "[" + appName + appVersion + " <" + appBuild + ">" + appInstance + "]"
 	}
-	return "[" + appName + appVersion + appInstance + "]"
+	return "[" + appName + " <??>]"
 }

client/template_test.go

@@ -83,6 +83,52 @@ func TestSolverPage(t *testing.T) {
 
 /*
 
+footer
+
+*/
+
+type footerTestcase struct {
+	name, version, instance, build, env string
+	footer                              string
+}
+
+func TestApplicationFooter(t *testing.T) {
+	testcases := []footerTestcase{
+		{"", "", "", "", "",
+			"[" + brandName + " local]"},
+		{"susen-staging-pr-30",
+			"v29",
+			"",
+			"ca0fd7123f918d1b6d3e65f3de47d52db09ae068",
+			"dev",
+			"[susen-staging-pr-30 CI/CD]"},
+		{"susen-staging",
+			"v29",
+			"1vac4117-c29f-4312-521e-ba4d8638c1ac",
+			"ca0fd7123f918d1b6d3e65f3de47d52db09ae068",
+			"stg",
+			"[susen-staging v29 <ca0fd71>]"},
+		{"susen-production",
+			"v22",
+			"1vac4117-c29f-4312-521e-ba4d8638c1ac",
+			"ca0fd7123f918d1b6d3e65f3de47d52db09ae068",
+			"prd",
+			"[susen-production v22 <ca0fd71> (dyno 1vac4117-c29f-4312-521e-ba4d8638c1ac)]"},
+	}
+	for i, tc := range testcases {
+		os.Setenv(applicationNameEnvVar, tc.name)
+		os.Setenv(applicationVersionEnvVar, tc.version)
+		os.Setenv(applicationInstanceEnvVar, tc.instance)
+		os.Setenv(applicationBuildEnvVar, tc.build)
+		os.Setenv(applicationEnvEnvVar, tc.env)
+		if footer := applicationFooter(); footer != tc.footer {
+			t.Errorf("Case %d: got %q, expected %q", i, footer, tc.footer)
+		}
+	}
+}
+
+/*
+
 helpers
 
 */

client/testdata/TestErrorPage0.html

@@ -9,6 +9,6 @@ <h1>Error Page</h1>
     <p>Sorry, a server error has occurred while generating this page.  The English description of the error is:</p>
     <blockquote><em>Test Error 0</em></blockquote>
     <p>To report this error, <a href="/bugreport.html">click here</a>.  When reporting your error, please include the following build info:</p>
-    <p>[Sūsen &lt;dev build&gt; &lt;local&gt;]</p>
+    <p>[Sūsen local]</p>
   </body>
 </html>

client/testdata/TestHomePage0.html

@@ -40,7 +40,7 @@ <h3>Solve a Puzzle</h3>
       </div>
     </div>
     <div class="footer">
-      <p>[Sūsen &lt;dev build&gt; &lt;local&gt;]</p>
+      <p>[Sūsen local]</p>
     </div>
   </body>
 </html>

client/testdata/TestSolverPage0.html

@@ -132,7 +132,7 @@ <h1>Puzzle Solver</h1>
       </div>
     </div>
     <div class="footer">
-      <p>[Sūsen &lt;dev build&gt; &lt;local&gt;]</p>
+      <p>[Sūsen local]</p>
     </div>
   </body>
 </html>

client/testdata/TestSolverPage1.html

@@ -422,7 +422,7 @@ <h1>Puzzle Solver</h1>
       </div>
     </div>
     <div class="footer">
-      <p>[Sūsen &lt;dev build&gt; &lt;local&gt;]</p>
+      <p>[Sūsen local]</p>
     </div>
   </body>
 </html>