Add secret tests

test/secrets_test.rb

@@ -0,0 +1,30 @@
+require "test_helper"
+
+class SecretsTest < ActiveSupport::TestCase
+  test "fetch" do
+    with_test_secrets("secrets" => "SECRET=ABC") do
+      assert_equal "ABC", Kamal::Secrets.new["SECRET"]
+    end
+  end
+
+  test "command interpolation" do
+    with_test_secrets("secrets" => "SECRET=$(echo ABC)") do
+      assert_equal "ABC", Kamal::Secrets.new["SECRET"]
+    end
+  end
+
+  test "variable references" do
+    with_test_secrets("secrets" => "SECRET1=ABC\nSECRET2=${SECRET1}DEF") do
+      assert_equal "ABC", Kamal::Secrets.new["SECRET1"]
+      assert_equal "ABCDEF", Kamal::Secrets.new["SECRET2"]
+    end
+  end
+
+  test "destinations" do
+    with_test_secrets("secrets.dest" => "SECRET=DEF", "secrets" => "SECRET=ABC") do
+      assert_equal "ABC", Kamal::Secrets.new["SECRET"]
+      assert_equal "DEF", Kamal::Secrets.new(destination: "dest")["SECRET"]
+      assert_equal "ABC", Kamal::Secrets.new(destination: "nodest")["SECRET"]
+    end
+  end
+end