configs: Simple test of loading valid configuration files

This test is intended to be an easy-to-maintain catalog of good examples
that we can use to catch certain parsing or decoding regressions easily.

It's not a fully-comprehensive test since it doesn't check the result
of decoding, instead just accepting any decode that completes without
errors. However, an easy-to-maintain test like this is a good complement
to some more specialized tests since we can easily collect good examples
over time and just add them in here.

configs/parser_config_test.go

@@ -0,0 +1,43 @@
+package configs
+
+import (
+	"io/ioutil"
+	"path/filepath"
+	"testing"
+)
+
+// TestParseLoadConfigFileSuccess is a simple test that just verifies that
+// a number of test configuration files (in test-fixtures/valid-files) can
+// be parsed without raising any diagnostics.
+//
+// This test does not verify that reading these files produces the correct
+// file element contents. More detailed assertions may be made on some subset
+// of these configuration files in other tests.
+func TestParserLoadConfigFileSuccess(t *testing.T) {
+	files, err := ioutil.ReadDir("test-fixtures/valid-files")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	for _, info := range files {
+		name := info.Name()
+		t.Run(name, func(t *testing.T) {
+			src, err := ioutil.ReadFile(filepath.Join("test-fixtures/valid-files", name))
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			parser := testParser(map[string]string{
+				name: string(src),
+			})
+
+			_, diags := parser.LoadConfigFile(name)
+			if len(diags) != 0 {
+				t.Errorf("unexpected diagnostics")
+				for _, diag := range diags {
+					t.Logf("- %s", diag)
+				}
+			}
+		})
+	}
+}

configs/test-fixtures/valid-files/backend.tf

@@ -0,0 +1,10 @@
+
+terraform {
+  backend "example" {
+    foo = "bar"
+
+    baz {
+      bar = "foo"
+    }
+  }
+}

configs/test-fixtures/valid-files/data-sources.tf

@@ -0,0 +1,15 @@
+data "http" "example1" {
+}
+
+data "http" "example2" {
+  url = "http://example.com/"
+
+  request_headers = {
+    "Accept" = "application/json"
+  }
+
+  count = 5
+  depends_on = [
+    data.http.example1,
+  ]
+}

configs/test-fixtures/valid-files/empty.tf.json

@@ -0,0 +1 @@
+{}

configs/test-fixtures/valid-files/locals.tf

@@ -0,0 +1,16 @@
+
+locals {
+  # This block intentionally left blank
+}
+
+locals {
+  foo = "foo"
+  bar = true
+}
+
+locals {
+  baz    = "oink"
+  dunno  = "🤷"
+  rowing = "🚣‍♀️"
+  π      = 3.14159265359
+}

configs/test-fixtures/valid-files/locals.tf.json

@@ -0,0 +1,10 @@
+{
+  "locals": {
+    "foo": "foo",
+    "bar": true,
+    "baz": "oink",
+    "dunno": "🤷",
+    "rowing": "🚣‍♀️",
+    "π": 3.14159265359
+  }
+}

configs/test-fixtures/valid-files/module-calls.tf

@@ -0,0 +1,26 @@
+
+module "foo" {
+  source = "./foo"
+  # this block intentionally left (almost) blank
+}
+
+module "bar" {
+  source = "hashicorp/bar/aws"
+
+  boom = "🎆"
+  yes  = true
+}
+
+module "baz" {
+  source = "git::https://example.com/"
+
+  a = 1
+
+  count = 12
+  for_each = ["a", "b", "c"]
+
+  depends_on = [
+    module.bar,
+  ]
+}
+

configs/test-fixtures/valid-files/outputs.tf

@@ -0,0 +1,25 @@
+
+output "foo" {
+  value = "hello"
+}
+
+output "bar" {
+  value = local.bar
+}
+
+output "baz" {
+  value     = "ssshhhhhhh"
+  sensitive = true
+}
+
+output "cheeze_pizza" {
+  description = "Nothing special"
+  value       = "🍕"
+}
+
+output "π" {
+  value = 3.14159265359
+  depends_on = [
+    pizza.cheese,
+  ]
+}

configs/test-fixtures/valid-files/provider-configs.tf

@@ -0,0 +1,15 @@
+
+provider "foo" {
+}
+
+provider "bar" {
+  version = ">= 1.0.2"
+
+  other = 12
+}
+
+provider "bar" {
+  other = 13
+
+  alias = "bar"
+}

configs/test-fixtures/valid-files/required-providers.tf

@@ -0,0 +1,7 @@
+
+terraform {
+  required_providers {
+    aws    = "~> 1.0.0"
+    consul = "~> 1.2.0"
+  }
+}

configs/test-fixtures/valid-files/required-version.tf

@@ -0,0 +1,4 @@
+
+terraform {
+  required_version = "~> 0.12.0"
+}

configs/test-fixtures/valid-files/resources.tf

@@ -0,0 +1,42 @@
+resource "aws_security_group" "firewall" {
+  lifecycle {
+    create_before_destroy = true
+    prevent_destroy = true
+    ignore_changes = [
+      description,
+    ]
+  }
+
+  connection {
+    host = "127.0.0.1"
+  }
+
+  provisioner "local-exec" {
+    command = "echo hello"
+
+    connection {
+      host = "10.1.2.1"
+    }
+  }
+
+  provisioner "local-exec" {
+    command = "echo hello"
+  }
+}
+
+resource "aws_instance" "web" {
+  ami = "ami-1234"
+  security_groups = [
+    "foo",
+    "bar",
+  ]
+
+  network_interface {
+    device_index = 0
+    description = "Main network interface"
+  }
+
+  depends_on = [
+    aws_security_group.firewall,
+  ]
+}

configs/test-fixtures/valid-files/variables.tf

@@ -0,0 +1,24 @@
+
+variable "foo" {
+}
+
+variable "bar" {
+  default = "hello"
+}
+
+variable "baz" {
+  type = list
+}
+
+variable "bar-baz" {
+  default = []
+  type    = list
+}
+
+variable "cheeze_pizza" {
+  description = "Nothing special"
+}
+
+variable "π" {
+  default = 3.14159265359
+}

configs/test-fixtures/valid-files/variables.tf.json

@@ -0,0 +1,21 @@
+{
+  "variable": {
+    "foo": {},
+    "bar": {
+      "default": "hello"
+    },
+    "baz": {
+      "type": "list"
+    },
+    "bar-baz": {
+      "default": [],
+      "type": "list"
+    },
+    "cheese_pizza": {
+      "description": "Nothing special"
+    },
+    "π": {
+      "default": 3.14159265359
+    }
+  }
+}