test: validate go templates with go (#30)

* test: parse testcases with gotemplate

this ensures all testcases obey the gotemplate grammar
and we are compatible with the official implementation

* chore: remove seperator from testnames

* test: add go test to package.json

* chore: setup go in ci

* fix: block argument is not optional

* chore: generate grammar

* test: refactor loop

* test: split string constant test

* chore: replace for with range loop

* fix: merge fix

* typo

Co-authored-by: Guilherme Soares <[email protected]>

* chore: cleanup

---------

Co-authored-by: Guilherme Soares <[email protected]>

Author: qvalentin

.github/workflows/ci.yaml

@@ -16,6 +16,9 @@ jobs:
             - uses: actions/setup-python@v4
               with:
                   python-version: '3.11'
+            - uses: actions/setup-go@v5
+              with:
+                  go-version: '1.23'
             - uses: actions/setup-node@v3
               with:
                   node-version: '18'

dialects/helm/src/grammar.json

@@ -566,20 +566,12 @@
           }
         },
         {
-          "type": "CHOICE",
-          "members": [
-            {
-              "type": "FIELD",
-              "name": "argument",
-              "content": {
-                "type": "SYMBOL",
-                "name": "_pipeline"
-              }
-            },
-            {
-              "type": "BLANK"
-            }
-          ]
+          "type": "FIELD",
+          "name": "argument",
+          "content": {
+            "type": "SYMBOL",
+            "name": "_pipeline"
+          }
         },
         {
           "type": "SYMBOL",

dialects/helm/src/node-types.json

@@ -190,7 +190,7 @@
     "fields": {
       "argument": {
         "multiple": false,
-        "required": false,
+        "required": true,
         "types": [
           {
             "type": "assignment",