[wip] unit testing

- tooling for code coverage measurement

.devcontainer/devcontainer.json

@@ -47,7 +47,6 @@
 			"extensions": [
 				"mhutchie.git-graph",
 				"Gruntfuggly.todo-tree",
-				"ms-vscode.live-server",
 				"ryanluker.vscode-coverage-gutters"
 			]
 		}

.gitignore

@@ -1,3 +1,7 @@
+# code coverage reports
+coverage/
+
+
 # https://github.com/github/gitignore/raw/refs/heads/main/Rust.gitignore
 
 # Generated by Cargo

.vscode/settings.json

@@ -43,7 +43,6 @@
         "black"
     ],
     "todo-tree.highlights.useColourScheme": true,
-    "coverage-gutters.coverageReportFileName": "target/llvm-cov/**/index.html",
     // // override the default setting (`cargo check --all-targets`) which produces the following error
     // // "can't find crate for `test`" when the default compilation target is a no_std target
     // "rust-analyzer.checkOnSave.allTargets": false,

.vscode/tasks.json

@@ -5,9 +5,6 @@
             "label": "Build Project",
             "type": "cargo",
             "command": "build",
-            // "presentation": {
-            //     "reveal": "silent"
-            // },
             "problemMatcher": "$rustc",
             "group": "build"
         },
@@ -62,18 +59,6 @@
             "problemMatcher": "$rustc",
             "group": "test"
         },
-        {
-            "label": "Run Coverage",
-            "type": "cargo",
-            "command": "llvm-cov",
-            "args": [
-                "--lcov",
-                "--output-path" ,
-                "target/lcov.info"
-            ],
-            "problemMatcher": "$rustc",
-            "group": "test"
-        },
         // {
         //     "label": "Run Integration Tests",
         //     "type": "cargo",
@@ -85,6 +70,54 @@
         //     "problemMatcher": "$rustc",
         //     "group": "test"
         // },
+        {
+            "label": "Test Coverage",
+            "hide": true,
+            "type": "cargo",
+            "command": "llvm-cov",
+            "args": [],
+            "problemMatcher": "$rustc",
+            "group": "test",
+        },
+        {
+            "label": "Report Coverage (html)",
+            "hide": true,
+            "type": "cargo",
+            "command": "llvm-cov",
+            "args": [
+                "report",
+                "--html",
+                "--output-dir" ,
+                "coverage",
+            ],
+            "problemMatcher": "$rustc",
+            "group": "test"
+        },
+        {
+            "label": "Report Coverage (lcov)",
+            "hide": true,
+            "type": "cargo",
+            "command": "llvm-cov",
+            "args": [
+                "report",
+                "--lcov",
+                "--output-path" ,
+                "coverage/lcov.info",
+            ],
+            "problemMatcher": "$rustc",
+            "group": "test"
+        },
+        {
+            "label": "Run Coverage",
+            "type": "shell",
+            "dependsOn": [
+                "Test Coverage",
+                "Report Coverage (html)",
+                "Report Coverage (lcov)",
+            ],
+            "dependsOrder": "sequence",
+            "group": "test"
+        },
         {
             "label": "Run All Tests",
             "type": "shell",