add more tests, readme

README.md

@@ -1,3 +1,11 @@
 # tree-sitter-hcl
 
 WIP tree-sitter grammar for the [HCL](https://github.com/hashicorp/hcl/blob/main/hclsyntax/spec.md) language
+
+## developing
+
+It is recommended to use `nix` to fulfill all development dependencies. To activate the development environment simply run `nix-shell` in the project root.
+
+## running tests
+
+To run tests simply run `nix-shell --run 'tree-sitter test'`. 

test/corpus/attributes.txt

@@ -0,0 +1,34 @@
+==================
+attribute with literal
+==================
+
+foo = "bar"
+
+---
+
+(config_file
+  (body
+    (attribute
+      (identifier)
+      (expression
+        (expr_term
+          (literal_value
+            (string_lit)))))))
+
+==================
+attribute with variable
+==================
+
+foo = bar
+
+---
+
+(config_file
+  (body
+    (attribute
+      (identifier)
+      (expression
+        (expr_term
+          (variable_expr
+            (identifier)))))))
+

test/corpus/blocks.txt

@@ -85,3 +85,24 @@ block_1 {
       (body
         (block
           (identifier))))))
+
+==================
+nested blocks
+==================
+
+block_1 {
+  block_2 {}
+  block_3 {}
+}
+
+---
+
+(config_file
+  (body
+    (block
+      (identifier)
+      (body
+        (block
+          (identifier))
+        (block
+          (identifier))))))