1 files changed, 102 insertions, 0 deletions
diff --git a/railties/test/commands/credentials_test.rb b/railties/test/commands/credentials_test.rb
new file mode 100644
index 0000000000..7842b0db61
--- /dev/null
+++ b/railties/test/commands/credentials_test.rb
@@ -0,0 +1,102 @@
+# frozen_string_literal: true
+
+require "isolation/abstract_unit"
+require "env_helpers"
+require "rails/command"
+require "rails/commands/credentials/credentials_command"
+
+class Rails::Command::CredentialsCommandTest < ActiveSupport::TestCase
+  include ActiveSupport::Testing::Isolation, EnvHelpers
+
+  setup { build_app }
+
+  teardown { teardown_app }
+
+  test "edit without editor gives hint" do
+    run_edit_command(editor: "").tap do |output|
+      assert_match "No $EDITOR to open file in", output
+      assert_match "rails credentials:edit", output
+    end
+  end
+
+  test "edit credentials" do
+    # Run twice to ensure credentials can be reread after first edit pass.
+    2.times do
+      assert_match(/access_key_id: 123/, run_edit_command)
+    end
+  end
+
+  test "edit command does not add master key to gitignore when already exist" do
+    run_edit_command
+
+    Dir.chdir(app_path) do
+      gitignore = File.read(".gitignore")
+      assert_equal 1, gitignore.scan(%r|config/master\.key|).length
+    end
+  end
+
+  test "edit command does not overwrite by default if credentials already exists" do
+    run_edit_command(editor: "eval echo api_key: abc >")
+    assert_match(/api_key: abc/, run_show_command)
+
+    run_edit_command
+    assert_match(/api_key: abc/, run_show_command)
+  end
+
+  test "edit command does not add master key when `RAILS_MASTER_KEY` env specified" do
+    Dir.chdir(app_path) do
+      key = IO.binread("config/master.key").strip
+      FileUtils.rm("config/master.key")
+
+      switch_env("RAILS_MASTER_KEY", key) do
+        assert_match(/access_key_id: 123/, run_edit_command)
+        assert_not File.exist?("config/master.key")
+      end
+    end
+  end
+
+  test "edit command modifies file specified by environment option" do
+    assert_match(/access_key_id: 123/, run_edit_command(environment: "production"))
+    Dir.chdir(app_path) do
+      assert File.exist?("config/credentials/production.key")
+      assert File.exist?("config/credentials/production.yml.enc")
+    end
+  end
+
+  test "show credentials" do
+    assert_match(/access_key_id: 123/, run_show_command)
+  end
+
+  test "show command raise error when require_master_key is specified and key does not exist" do
+    remove_file "config/master.key"
+    add_to_config "config.require_master_key = true"
+
+    assert_match(/Missing encryption key to decrypt file with/, run_show_command(allow_failure: true))
+  end
+
+  test "show command does not raise error when require_master_key is false and master key does not exist" do
+    remove_file "config/master.key"
+    add_to_config "config.require_master_key = false"
+
+    assert_match(/Missing 'config\/master\.key' to decrypt credentials/, run_show_command)
+  end
+
+  test "show command displays content specified by environment option" do
+    run_edit_command(environment: "production")
+
+    assert_match(/access_key_id: 123/, run_show_command(environment: "production"))
+  end
+
+  private
+    def run_edit_command(editor: "cat", environment: nil, **options)
+      switch_env("EDITOR", editor) do
+        args = environment ? ["--environment", environment] : []
+        rails "credentials:edit", args, **options
+      end
+    end
+
+    def run_show_command(environment: nil, **options)
+      args = environment ? ["--environment", environment] : []
+      rails "credentials:show", args, **options
+    end
+end