fix: type defaults for variables in tests (#2244)

Signed-off-by: ollevche <ollevche@gmail.com>

internal/command/testdata/test/default_variables/main.tf

@@ -3,3 +3,10 @@ variable "input" {
   type    = string
   default = "Hello, world!"
 }
+
+variable "another_input" {
+  type = object({
+    optional_string = optional(string, "type_default")
+    optional_number = optional(number, 42)
+  })
+}

internal/command/testdata/test/default_variables/main.tftest.hcl

@@ -4,4 +4,20 @@ run "applies_defaults" {
     condition     = var.input == "Hello, world!"
     error_message = "should have applied default value"
   }
+
+  variables {
+    another_input = {
+      optional_string = "Hello, world!"
+    }
+  }
+
+  assert {
+    condition     = var.another_input.optional_string == "Hello, world!"
+    error_message = "should have used custom value from test file"
+  }
+
+  assert {
+    condition     = var.another_input.optional_number == 42
+    error_message = "should have used default type value"
+  }
 }