Add tests

Uses examples to check that the renderer works as
expected.

Author: tomduckering

.github/workflows/build_and_publish.yml

@@ -5,9 +5,24 @@ on:
       - main
   pull_request:
 jobs:
+    test:
+        name: "Run tests"
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v3
+              with:
+                fetch-depth: 0
+
+            - name: Install tools
+              uses: asdf-vm/actions/install@v3
+
+            - name: Run tests
+              run: pkl test tests.pkl
     build_and_publish:
         name: "Create Pkl package, tag and release"
         runs-on: ubuntu-latest
+        needs: test
         steps:
             - name: Checkout code
               uses: actions/checkout@v3

examples/basic.pkl

@@ -0,0 +1,9 @@
+import "../tfVarsRenderer.pkl"
+
+one = 1
+two = "two"
+three = true
+
+output {
+    renderer = new tfVarsRenderer.TfVarsRenderer{}
+}

tests.pkl

@@ -0,0 +1,10 @@
+amends "pkl:test"
+import* "examples/*.pkl" as allExamples
+
+examples {
+  for (key in allExamples.keys) {
+    [key.drop("examples/".length).replaceLast("pkl","tfvars")] {
+        allExamples[key].output.text
+    }
+  }
+}

tests.pkl-expected.pcf

@@ -0,0 +1,9 @@
+examples {
+  ["basic.tfvars"] {
+    """
+    one = 1
+    two = "two"
+    three = true
+    """
+  }
+}

tfVarsRenderer.pkl

@@ -5,6 +5,12 @@ class TfVarsRenderer extends ValueRenderer {
     function renderValue(value: Any): String =
         if (value is String)
             "\"" + value + "\""
+        else if (value is Int || value is Float)
+            value.toString()
+        else if (value is List)
+            "[" + value.map((el) -> renderValue(el)).join(", ") + "]"
+        else if (value is Map)
+            "{" + value.entries.map((el) -> el.key + " = " + renderValue(el.value)).join(", ") + "}"
         else if (value is Boolean)
             if (value) "true" else "false"
         else if (value is Dynamic)