confirm non issue of 1646 (#1705)

plugin/src/test/java/io/jenkins/plugins/casc/SecretSourceResolverTest.java

@@ -26,6 +26,7 @@ import org.jvnet.hudson.test.WithoutJenkins;
 
 import static org.hamcrest.CoreMatchers.containsString;
 import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.startsWith;
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.junit.Assert.assertTrue;
 
@@ -256,6 +257,15 @@ public class SecretSourceResolverTest {
         assertThat(output, containsString("\"Our secret\": \"Hello World\""));
     }
 
+    @Test
+    public void resolve_FileKey() throws Exception {
+        Path path = getPath("secret.key");
+        String input = Paths.get("").toUri().relativize(path.toUri()).getPath();
+        String output = resolve("${readFile:" + input + "}");
+        assertThat(output, equalTo(FILE.lookup(input)));
+        assertThat(output, startsWith("-----BEGIN RSA PRIVATE KEY-----"));
+    }
+
     @Test
     public void resolve_FileWithSpace() throws Exception {
         String path = getPath("some secret.json").toAbsolutePath().toString();

plugin/src/test/resources/io/jenkins/plugins/casc/secret.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----