Automatically test ALL the Terraform builtins

Makefile

@@ -21,3 +21,8 @@ test::
 # be useful to run to review the differences with git diff.
 test_accept::
 	PULUMI_ACCEPT=1 go test -v -count=1 -cover -timeout 2h -parallel ${TESTPARALLELISM} ./...
+
+generate_builtins_test::
+	if [ ! -d ./scripts/venv ]; then python -m venv ./scripts/venv; fi
+	. ./scripts/venv/*/activate && python -m pip install -r ./scripts/requirements.txt
+	. ./scripts/venv/*/activate &&  python ./scripts/generate_builtins.py

pkg/tf2pulumi/convert/testdata/builtins/main.tf

@@ -1,3 +1,98 @@
-output "funcLength" {
-    value = length([1, 2])
-}
+# DO NOT EDIT BY HAND
+# This file is auto generated by ./scripts/generate_builtins.py
+
+locals {
+    # A load of the examples in the docs use `path.module` which _should_ resolve to the file system path of
+    # the current module, but tf2pulumi doesn't support that so we replace it with local.path_module.
+    path_module = "some/path"
+}
+
+# Examples for element
+output "funcElement0" {
+  value = element(["a", "b", "c"], 1)
+}
+
+output "funcElement1" {
+  value = element(["a", "b", "c"], 3)
+}
+
+output "funcElement2" {
+  value = element(["a", "b", "c"], length(["a", "b", "c"])-1)
+}
+
+
+# Examples for file
+output "funcFile" {
+  value = file("${local.path_module}/hello.txt")
+}
+
+
+# Examples for filebase64
+output "funcFilebase64" {
+  value = filebase64("${local.path_module}/hello.txt")
+}
+
+
+# Examples for filebase64sha256
+output "funcFilebase64sha256" {
+  value = filebase64sha256("hello.txt")
+}
+
+
+# Examples for jsonencode
+output "funcJsonencode" {
+  value = jsonencode({"hello"="world"})
+}
+
+
+# Examples for length
+output "funcLength0" {
+  value = length([])
+}
+
+output "funcLength1" {
+  value = length(["a", "b"])
+}
+
+output "funcLength2" {
+  value = length({"a" = "b"})
+}
+
+output "funcLength3" {
+  value = length("hello")
+}
+
+output "funcLength4" {
+  value = length("👾🕹️")
+}
+
+
+# Examples for lookup
+output "funcLookup0" {
+  value = lookup({a="ay", b="bee"}, "a", "what?")
+}
+
+output "funcLookup1" {
+  value = lookup({a="ay", b="bee"}, "c", "what?")
+}
+
+
+# Examples for sha1
+output "funcSha1" {
+  value = sha1("hello world")
+}
+
+
+# Examples for split
+output "funcSplit0" {
+  value = split(",", "foo,bar,baz")
+}
+
+output "funcSplit1" {
+  value = split(",", "foo")
+}
+
+output "funcSplit2" {
+  value = split(",", "")
+}
+

pkg/tf2pulumi/convert/testdata/builtins/pcl/main.pp

@@ -1,3 +1,66 @@
-output funcLength {
-    value = length([1, 2])
-}
+    # A load of the examples in the docs use `path.module` which _should_ resolve to the file system path of
+    # the current module, but tf2pulumi doesn't support that so we replace it with local.path_module.
+    pathModule = "some/path"
+# Examples for element
+output funcElement0 {
+  value = element(["a", "b", "c"], 1)
+}
+output funcElement1 {
+  value = element(["a", "b", "c"], 3)
+}
+output funcElement2 {
+  value = element(["a", "b", "c"], length(["a", "b", "c"])-1)
+}
+# Examples for file
+output funcFile {
+  value = readFile("${pathModule}/hello.txt")
+}
+# Examples for filebase64
+output funcFilebase64 {
+  value = filebase64("${pathModule}/hello.txt")
+}
+# Examples for filebase64sha256
+output funcFilebase64sha256 {
+  value = filebase64sha256("hello.txt")
+}
+# Examples for jsonencode
+output funcJsonencode {
+  value = toJSON({"hello"="world"})
+}
+# Examples for length
+output funcLength0 {
+  value = length([])
+}
+output funcLength1 {
+  value = length(["a", "b"])
+}
+output funcLength2 {
+  value = length({"a" = "b"})
+}
+output funcLength3 {
+  value = length("hello")
+}
+output funcLength4 {
+  value = length("👾🕹️")
+}
+# Examples for lookup
+output funcLookup0 {
+  value = lookup({a="ay", b="bee"}, "a", "what?")
+}
+output funcLookup1 {
+  value = lookup({a="ay", b="bee"}, "c", "what?")
+}
+# Examples for sha1
+output funcSha1 {
+  value = sha1("hello world")
+}
+# Examples for split
+output funcSplit0 {
+  value = split(",", "foo,bar,baz")
+}
+output funcSplit1 {
+  value = split(",", "foo")
+}
+output funcSplit2 {
+  value = split(",", "")
+}

scripts/.gitignore

@@ -0,0 +1 @@
+venv