VSCode Tasks for running Elixir tests quickly

tasks.json

{
  "version": "2.0.0",
  "tasks": [
    {
      "label": "Build",
      "type": "shell",
      "command": "mix compile",
      "problemMatcher": ["$mixCompileError", "$mixCompileWarning"],
      "group": {
        "kind": "build",
        "isDefault": true
      }
    },
    {
      "label": "Format Current File",
      "type": "shell",
      "command": "mix",
      "args": ["format", "${relativeFile}"],
      "options": {
        "cwd": "${workspaceRoot}"
      },
      "problemMatcher": "$mixTestFailure",
      "presentation": {
        "focus": false,
        "reveal": "never"
      }
    },
    {
      "label": "Run All Tests",
      "type": "shell",
      "command": "mix",
      "args": ["test"],
      "options": {
        "cwd": "${workspaceRoot}"
      },
      "problemMatcher": [
        "$mixCompileError",
        "$mixCompileWarning",
        "$mixTestFailure"
      ],
      "group": {
        "kind": "test",
        "isDefault": true
      },
      "presentation": {
        "focus": true
      }
    },
    {
      "label": "Run Current Tests",
      "type": "shell",
      "command": "mix",
      "args": ["test", "${relativeFile}"],
      "options": {
        "cwd": "${workspaceRoot}"
      },
      "problemMatcher": [
        "$mixCompileError",
        "$mixCompileWarning",
        "$mixTestFailure"
      ],
      "presentation": {
        "focus": true
      }
    },
    {
      "label": "Run Focused Test",
      "type": "shell",
      "command": "mix",
      "args": ["test", "${relativeFile}:${lineNumber}"],
      "options": {
        "cwd": "${workspaceRoot}"
      },
      "problemMatcher": [
        "$mixCompileError",
        "$mixCompileWarning",
        "$mixTestFailure"
      ],
      "presentation": {
        "focus": true
      }
    }
  ]
}