"Terraspace test" not respecting config

We have populated the details of our environment in the following files however Terraspace Test does not pick these up at all.

app/modules/<module|stack>/test/spec/fixtures/config/terraform/backend.tf
app/modules/<module|stack>/test/spec/fixtures/config/terraform/provider.tf. 
app/modules/<module|stack>/test/spec/fixtures/config/terraform/variables.tf

we have config/helpers/custom_helpers.rb:
require ‘git’

module Terraspace::Project::CustomHelpers
  def git_scm_info

    # Determine if Terraspace is being run via an ADO pipeline, or locally
    if (ENV.include?('USER') && (ENV['USER'] == "vsts"))

      # Looks like we're running on ADO...
      platform = "ADO"
      commit_hash = ENV['BUILD_SOURCEVERSION'][0..11]
      commit_branch = ENV['BUILD_SOURCEBRANCH'].delete_prefix('refs/heads/')

    else
      # Running locally
      platform = "LOCAL"

      # Create a Git client using the current working directory as the base
      #git = Git.open('.', :log => Logger.new(STDERR))
      git = Git.open('.')

      # Grab the list of commits from git's log
      commits = git.log

      # Assign the current branch and the most recent commit to some variables
      commit_branch = git.current_branch
      commit_hash = "#{commits.first}"[0..11]    # 'commits.first' retrives the most recent commit in the commit list

    end

    # Create a Hash with the various items of information has key:value pairs
    git_scm_info_hash = {
      "platform" => platform,
      "commit_branch" => commit_branch,
      "commit_hash" => commit_hash
    }

    # Return the hash
    git_scm_info_hash

  end

  def htp_environment

    # Detect if AWS_PROFILE env var is set
    if !ENV.include?('USER')
      return "AWS_PROFILE not set"

    end

    # Based on the value of the AWS_PROFILE env var, return a valid HTP environment reference
    case ENV['AWS_PROFILE']
    when /^SOMEREGEX1/
      "lab"
    when /^SOMEREGEX2/
      "dev"
    when /^SOMEREGEX3/
      "sbx"
    when /^SOMEREGEX4/
      "shared"
    when /^SOMEREGEX5/
      "prd"
    else
      "AWS_PROFILE value #{ENV['AWS_PROFILE']} not recognised"
    end

  end

  def htp_prefix

    # GUARDRAILS: Check the user is authenticated to the correct AWS spoke

    # If the TS_ENV var matches the account in their AWS_PROFILE(htp_environment), proceed
    if Terraspace.env == htp_environment
      nil
    # If the AWS-authenticated account is lab and TS_ENV is set to a lab cluster ID 'htp-', proceed
    elsif htp_environment == "lab" && Terraspace.env.start_with?("htp-")
      Terraspace.env
    else
      raise "AWS Spoke/Environment mismatch. Current spoke: " + htp_environment + "\n TS_ENV: " + Terraspace.env
    end

  end
end

Is there any other config that needs to be set?

  ❯ FULL_BACKTRACE=1 TS_ENV=htp-4390793 bundle exec terraspace test
  => cd test && bundle exec rspec

  main
  Building test harness at: /tmp/terraspace/test-harnesses/htp-config-harness
  Test harness built.
  => TS_ENV=htp-4390793 terraspace up htp-config -y
  Building .terraspace-cache/eu-west-1/htp-4390793/stacks/htp-config
  NameError: undefined local variable or method `htp_environment' for #<Terraspace::Compiler::Erb::Context:0x0000000117296e50 @mod=#<Terraspace::Mod:0x00000001573576b0 @options={"init"=>true, "yes"=>true, "mod"=>"htp-config", "args"=>[]}, @name="htp-config", @consider_stacks=true, @extra=nil, @resolved=true, @_memoized_root="/tmp/terraspace/test-harnesses/htp-config-harness/app/stacks/htp-config", @root_module=true, @expander=#<Terraspace::Compiler::Expander:0x00000001575b0498 @mod=#<Terraspace::Mod:0x00000001573576b0 ...>, @backend={}, @_memoized_expander=#<TerraspacePluginAws::Interfaces::Expander:0x0000000157589870 @mod=#<Terraspace::Mod:0x00000001573576b0 ...>>>, @_memoized_cache_dir={[]=>"/tmp/terraspace/test-harnesses/htp-config-harness/.terraspace-cache/eu-west-1/htp-4390793/stacks/htp-config"}>, @options={"init"=>true, "yes"=>true, "mod"=>"htp-config", "args"=>[]}>
  Error evaluating ERB template around line 4 of: /tmp/terraspace/test-harnesses/htp-config-harness/app/stacks/htp-config/tfvars/base.tfvars:
  1 # Variables declared in 'base.tfvars' (this file) are evaluated for every stack
  2 # and help keep the stack-level configuration DRY
  3
  4 environment = "<%= htp_environment %>"
  5 sub_id      = "<%= htp_prefix %>"
  6
  7 scm_info_commit_branch = "<%= git_scm_info["commit_branch"] %>"
  8 scm_info_commit_hash   = "<%= git_scm_info["commit_hash"] %>"
  9 scm_info_platform      = "<%= git_scm_info["platform"] %>"

  Original backtrace:
  /tmp/terraspace/test-harnesses/htp-config-harness/app/stacks/htp-config/tfvars/base.tfvars:4:in `__tilt_8520'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/tilt-2.0.11/lib/tilt/template.rb:181:in `call'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/tilt-2.0.11/lib/tilt/template.rb:181:in `evaluate'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/tilt-2.0.11/lib/tilt/template.rb:109:in `render'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/render_me_pretty-0.8.4/lib/render_me_pretty/erb.rb:91:in `render'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/render_me_pretty-0.8.4/lib/render_me_pretty.rb:11:in `result'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/compiler/erb/render.rb:10:in `build'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/compiler/strategy/tfvar/tfvars.rb:4:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/compiler/strategy/tfvar.rb:17:in `block in run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/compiler/strategy/tfvar.rb:11:in `each'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/compiler/strategy/tfvar.rb:11:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/compiler/perform.rb:34:in `compile_tfvars'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/compiler/perform.rb:13:in `compile'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/builder.rb:58:in `build_stacks'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/builder.rb:46:in `block in build'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/hooks/builder.rb:25:in `run_hooks'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/hooks/concern.rb:6:in `run_hooks'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/builder.rb:44:in `build'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/builder.rb:31:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/cli/up.rb:80:in `build'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/cli/up.rb:19:in `perform'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/cli/up.rb:11:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/cli.rb:236:in `up'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/command.rb:76:in `dispatch'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/thor-1.2.1/lib/thor/base.rb:485:in `start'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/cli/concern.rb:65:in `start'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-terraspace-0.3.2/lib/rspec/terraspace/ts.rb:40:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-terraspace-0.3.2/lib/rspec/terraspace/ts.rb:27:in `up'
  /Users/builduser/Workspace/BP/htf-infrastructure/app/stacks/htp-config/test/spec/main_spec.rb:15:in `block (2 levels) in <top (required)>'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/hooks.rb:365:in `instance_exec'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/hooks.rb:365:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/hooks.rb:529:in `block in run_owned_hooks_for'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/hooks.rb:528:in `each'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/hooks.rb:528:in `run_owned_hooks_for'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/hooks.rb:480:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/example_group.rb:553:in `block in run_before_context_hooks'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/memoized_helpers.rb:208:in `block in isolate_for_context_hook'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/memoized_helpers.rb:204:in `instance_exec'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/memoized_helpers.rb:204:in `isolate_for_context_hook'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/example_group.rb:552:in `run_before_context_hooks'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/example_group.rb:606:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:121:in `block (3 levels) in run_specs'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:121:in `map'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:121:in `block (2 levels) in run_specs'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/configuration.rb:2070:in `with_suite_hooks'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:116:in `block in run_specs'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/reporter.rb:74:in `report'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:115:in `run_specs'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:89:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:71:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:45:in `invoke'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/exe/rspec:4:in `<top (required)>'
  /Users/builduser/.rbenv/versions/3.0.3/bin/rspec:25:in `load'
  /Users/builduser/.rbenv/versions/3.0.3/bin/rspec:25:in `<top (required)>'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/cli/exec.rb:58:in `load'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/cli/exec.rb:58:in `kernel_load'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/cli/exec.rb:23:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/cli.rb:486:in `exec'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/vendor/thor/lib/thor.rb:392:in `dispatch'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/cli.rb:31:in `dispatch'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/vendor/thor/lib/thor/base.rb:485:in `start'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/cli.rb:25:in `start'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/exe/bundle:48:in `block in <top (required)>'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/friendly_errors.rb:120:in `with_friendly_errors'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/exe/bundle:36:in `<top (required)>'
  /Users/builduser/.rbenv/versions/3.0.3/bin/bundle:23:in `load'
  /Users/builduser/.rbenv/versions/3.0.3/bin/bundle:23:in `<main>'

  Re-run with FULL_BACKTRACE=1 to see all lines
  Exception SystemExit: exit
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/render_me_pretty-0.8.4/lib/render_me_pretty/erb.rb:128:in `exit'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/render_me_pretty-0.8.4/lib/render_me_pretty/erb.rb:128:in `print_result'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/render_me_pretty-0.8.4/lib/render_me_pretty/erb.rb:120:in `handle_exception'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/render_me_pretty-0.8.4/lib/render_me_pretty/erb.rb:97:in `rescue in render'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/render_me_pretty-0.8.4/lib/render_me_pretty/erb.rb:85:in `render'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/render_me_pretty-0.8.4/lib/render_me_pretty.rb:11:in `result'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/compiler/erb/render.rb:10:in `build'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/compiler/strategy/tfvar/tfvars.rb:4:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/compiler/strategy/tfvar.rb:17:in `block in run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/compiler/strategy/tfvar.rb:11:in `each'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/compiler/strategy/tfvar.rb:11:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/compiler/perform.rb:34:in `compile_tfvars'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/compiler/perform.rb:13:in `compile'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/builder.rb:58:in `build_stacks'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/builder.rb:46:in `block in build'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/hooks/builder.rb:25:in `run_hooks'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/hooks/concern.rb:6:in `run_hooks'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/builder.rb:44:in `build'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/builder.rb:31:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/cli/up.rb:80:in `build'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/cli/up.rb:19:in `perform'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/cli/up.rb:11:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/cli.rb:236:in `up'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/command.rb:76:in `dispatch'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/thor-1.2.1/lib/thor/base.rb:485:in `start'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/terraspace-2.2.3/lib/terraspace/cli/concern.rb:65:in `start'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-terraspace-0.3.2/lib/rspec/terraspace/ts.rb:40:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-terraspace-0.3.2/lib/rspec/terraspace/ts.rb:27:in `up'
  /Users/builduser/Workspace/BP/htf-infrastructure/app/stacks/htp-config/test/spec/main_spec.rb:15:in `block (2 levels) in <top (required)>'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/hooks.rb:365:in `instance_exec'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/hooks.rb:365:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/hooks.rb:529:in `block in run_owned_hooks_for'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/hooks.rb:528:in `each'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/hooks.rb:528:in `run_owned_hooks_for'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/hooks.rb:480:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/example_group.rb:553:in `block in run_before_context_hooks'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/memoized_helpers.rb:208:in `block in isolate_for_context_hook'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/memoized_helpers.rb:204:in `instance_exec'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/memoized_helpers.rb:204:in `isolate_for_context_hook'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/example_group.rb:552:in `run_before_context_hooks'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/example_group.rb:606:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:121:in `block (3 levels) in run_specs'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:121:in `map'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:121:in `block (2 levels) in run_specs'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/configuration.rb:2070:in `with_suite_hooks'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:116:in `block in run_specs'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/reporter.rb:74:in `report'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:115:in `run_specs'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:89:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:71:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/lib/rspec/core/runner.rb:45:in `invoke'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/rspec-core-3.12.0/exe/rspec:4:in `<top (required)>'
  /Users/builduser/.rbenv/versions/3.0.3/bin/rspec:25:in `load'
  /Users/builduser/.rbenv/versions/3.0.3/bin/rspec:25:in `<top (required)>'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/cli/exec.rb:58:in `load'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/cli/exec.rb:58:in `kernel_load'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/cli/exec.rb:23:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/cli.rb:486:in `exec'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/vendor/thor/lib/thor.rb:392:in `dispatch'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/cli.rb:31:in `dispatch'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/vendor/thor/lib/thor/base.rb:485:in `start'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/cli.rb:25:in `start'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/exe/bundle:48:in `block in <top (required)>'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/lib/bundler/friendly_errors.rb:120:in `with_friendly_errors'
  /Users/builduser/.rbenv/versions/3.0.3/lib/ruby/gems/3.0.0/gems/bundler-2.3.22/exe/bundle:36:in `<top (required)>'
  /Users/builduser/.rbenv/versions/3.0.3/bin/bundle:23:in `load'
  /Users/builduser/.rbenv/versions/3.0.3/bin/bundle:23:in `<main>'
  => TS_ENV=htp-4390793 terraspace down htp-config -y
  Building .terraspace-cache/eu-west-1/htp-4390793/stacks/htp-config
  NameError: undefined local variable or method `htp_environment' for #<Terraspace::Compiler::Erb::Context:0x0000000157598370 @mod=#<Terraspace::Mod:0x000000011732fb00 @options={"yes"=>true, "mod"=>"htp-config", "args"=>[], "destroy"=>true}, @name="htp-config", @consider_stacks=true, @extra=nil, @resolved=true, @_memoized_root="/tmp/terraspace/test-harnesses/htp-config-harness/app/stacks/htp-config", @root_module=true, @expander=#<Terraspace::Compiler::Expander:0x00000001173972c8 @mod=#<Terraspace::Mod:0x000000011732fb00 ...>, @backend={}, @_memoized_expander=#<TerraspacePluginAws::Interfaces::Expander:0x0000000117396918 @mod=#<Terraspace::Mod:0x000000011732fb00 ...>>>, @_memoized_cache_dir={[]=>"/tmp/terraspace/test-harnesses/htp-config-harness/.terraspace-cache/eu-west-1/htp-4390793/stacks/htp-config"}>, @options={"yes"=>true, "mod"=>"htp-config", "args"=>[], "destroy"=>true}>
  Error evaluating ERB template around line 4 of: /tmp/terraspace/test-harnesses/htp-config-harness/app/stacks/htp-config/tfvars/base.tfvars:
  1 # Variables declared in 'base.tfvars' (this file) are evaluated for every stack
  2 # and help keep the stack-level configuration DRY
  3
  4 environment = "<%= htp_environment %>"
  5 sub_id      = "<%= htp_prefix %>"
  6
  7 scm_info_commit_branch = "<%= git_scm_info["commit_branch"] %>"
  8 scm_info_commit_hash   = "<%= git_scm_info["commit_hash"] %>"
  9 scm_info_platform      = "<%= git_scm_info["platform"] %>"

Bummer. Looks like maybe a bug. Am actually taking a whole fresh look at the test harness. Not quite happy with it. Want to make some improvements and try to remove some of the boilerplate if possible. Will take a look at it then. Unsure when, but am working on some pretty nice/significant changes to terraspace. It’s maybe about a month out. Thanks for the report.