1 files changed, 30 insertions, 0 deletions
diff --git a/railties/test/commands/credentials_test.rb b/railties/test/commands/credentials_test.rb
index fe52c306d2..f1bb1ef08a 100644
--- a/railties/test/commands/credentials_test.rb
+++ b/railties/test/commands/credentials_test.rb
@@ -12,6 +12,24 @@ class Rails::Command::CredentialsCommandTest < ActiveSupport::TestCase
 
   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 "bin/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 "show credentials" do
+    assert_match(/access_key_id: 123/, run_show_command)
+  end
+
   test "edit command does not add master key to gitignore when already exist" do
     run_edit_command
 
@@ -21,10 +39,22 @@ class Rails::Command::CredentialsCommandTest < ActiveSupport::TestCase
     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
+
   private
     def run_edit_command(editor: "cat")
       switch_env("EDITOR", editor) do
         rails "credentials:edit"
       end
     end
+
+    def run_show_command
+      rails "credentials:show"
+    end
 end