Added coverage report

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "coverage-gutters.coverageReportFileName": "coverage/**/lcov.info",
+}

.vscode/tasks.json

@@ -25,7 +25,7 @@
 			],
 			"group": "test",
 			"label": "rust: cargo test",
-						"presentation": {
+			"presentation": {
 				"echo": true,
 				"reveal": "always",
 				"focus": true,
@@ -33,6 +33,39 @@
 				"showReuseMessage": true,
 				"clear": true
 			}
+		},
+		{
+			"type": "cargo",
+			"label": "cargo: coverage",
+			"command": "llvm-cov",
+			"args": ["--lcov", "--output-path", "coverage/lcov.info"],
+			"presentation": {
+				"echo": true,
+				"reveal": "always",
+				"focus": true,
+				"panel": "dedicated",
+				"showReuseMessage": true,
+				"clear": true
+			},
+		},
+		{
+			"type": "shell",
+			"label": "generate coverage report",
+			"command": "lcov-summary",
+			"args": [
+				"coverage/lcov.info"
+			],
+			"presentation": {
+				"echo": true,
+				"reveal": "always",
+				"focus": true,
+				"panel": "dedicated",
+				"showReuseMessage": true,
+				"clear": true
+			},
+			"problemMatcher": [],
+			"dependsOrder": "sequence",
+			"dependsOn": "cargo: coverage"
 		}
 	]
 }