Split tests into separate, grammar-specific files

Author: cmbasnett

.vscode/tasks.json

@@ -0,0 +1,44 @@
+{
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "cargo build",
+      "type": "shell",
+      "command": "cargo",
+      "args": ["build"],
+      "options": {
+        "cwd": "${workspaceFolder}",
+        "env": {
+          "PATH": "${env:PATH}:${env:HOME}/.cargo/bin"
+        }
+      },
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      },
+      "problemMatcher": ["$rustc"],
+      "presentation": {
+        "reveal": "always",
+        "panel": "shared"
+      }
+    },
+    {
+      "label": "cargo test",
+      "type": "shell",
+      "command": "cargo",
+      "args": ["test"],
+      "options": {
+        "cwd": "${workspaceFolder}",
+        "env": {
+          "PATH": "${env:PATH}:${env:HOME}/.cargo/bin"
+        }
+      },
+      "group": "test",
+      "problemMatcher": ["$rustc"],
+      "presentation": {
+        "reveal": "always",
+        "panel": "shared"
+      }
+    }
+  ]
+}

src/lib.rs

@@ -1,5 +1,4 @@
 pub mod ast;
-mod test;
 pub mod parser;
 pub mod visitor;
 pub mod transform;