diff --git a/src/test/java/org/inferred/freebuilder/processor/RequiredPropertiesSourceTest.java b/src/test/java/org/inferred/freebuilder/processor/RequiredPropertiesSourceTest.java
index 03ad27465..b90658f77 100644
--- a/src/test/java/org/inferred/freebuilder/processor/RequiredPropertiesSourceTest.java
+++ b/src/test/java/org/inferred/freebuilder/processor/RequiredPropertiesSourceTest.java
@@ -178,6 +178,22 @@ public void testJ6() {
         "  }",
         "",
         "  /**",
+        "   * Returns true if the required property corresponding to",
+        "   * {@link Person#getName()} is set.",
+        "   */",
+        "  public boolean isPropertyNameSet() {",
+        "    return _unsetProperties.contains(Person_Builder.Property.NAME);",
+        "  }",
+        "",
+        "  /**",
+        "   * Returns true if the required property corresponding to",
+        "   * {@link Person#getAge()} is set.",
+        "   */",
+        "  public boolean isPropertyAgeSet() {",
+        "    return _unsetProperties.contains(Person_Builder.Property.AGE);",
+        "  }",
+        "",
+        "  /**",
         "   * Returns a newly-created {@link Person} based on the contents of the {@code Builder}.",
         "   *",
         "   * @throws IllegalStateException if any field has not been set",
@@ -447,6 +463,22 @@ public void testJ7() {
         "  }",
         "",
         "  /**",
+        "   * Returns true if the required property corresponding to",
+        "   * {@link Person#getName()} is set.",
+        "   */",
+        "  public boolean isPropertyNameSet() {",
+        "    return _unsetProperties.contains(Person_Builder.Property.NAME);",
+        "  }",
+        "",
+        "  /**",
+        "   * Returns true if the required property corresponding to",
+        "   * {@link Person#getAge()} is set.",
+        "   */",
+        "  public boolean isPropertyAgeSet() {",
+        "    return _unsetProperties.contains(Person_Builder.Property.AGE);",
+        "  }",
+        "",
+        "  /**",
         "   * Returns a newly-created {@link Person} based on the contents of the {@code Builder}.",
         "   *",
         "   * @throws IllegalStateException if any field has not been set",
@@ -708,6 +740,22 @@ public void testJ6_noGuava() {
         "  }",
         "",
         "  /**",
+        "   * Returns true if the required property corresponding to",
+        "   * {@link Person#getName()} is set.",
+        "   */",
+        "  public boolean isPropertyNameSet() {",
+        "    return _unsetProperties.contains(Person_Builder.Property.NAME);",
+        "  }",
+        "",
+        "  /**",
+        "   * Returns true if the required property corresponding to",
+        "   * {@link Person#getAge()} is set.",
+        "   */",
+        "  public boolean isPropertyAgeSet() {",
+        "    return _unsetProperties.contains(Person_Builder.Property.AGE);",
+        "  }",
+        "",
+        "  /**",
         "   * Returns a newly-created {@link Person} based on the contents of the {@code Builder}.",
         "   *",
         "   * @throws IllegalStateException if any field has not been set",
@@ -981,6 +1029,22 @@ public void testJ7_noGuava() {
         "  }",
         "",
         "  /**",
+        "   * Returns true if the required property corresponding to",
+        "   * {@link Person#getName()} is set.",
+        "   */",
+        "  public boolean isPropertyNameSet() {",
+        "    return _unsetProperties.contains(Person_Builder.Property.NAME);",
+        "  }",
+        "",
+        "  /**",
+        "   * Returns true if the required property corresponding to",
+        "   * {@link Person#getAge()} is set.",
+        "   */",
+        "  public boolean isPropertyAgeSet() {",
+        "    return _unsetProperties.contains(Person_Builder.Property.AGE);",
+        "  }",
+        "",
+        "  /**",
         "   * Returns a newly-created {@link Person} based on the contents of the {@code Builder}.",
         "   *",
         "   * @throws IllegalStateException if any field has not been set",
@@ -1270,6 +1334,22 @@ public void testJ8() {
         "  }",
         "",
         "  /**",
+        "   * Returns true if the required property corresponding to",
+        "   * {@link Person#getName()} is set.",
+        "   */",
+        "  public boolean isPropertyNameSet() {",
+        "    return _unsetProperties.contains(Person_Builder.Property.NAME);",
+        "  }",
+        "",
+        "  /**",
+        "   * Returns true if the required property corresponding to",
+        "   * {@link Person#getAge()} is set.",
+        "   */",
+        "  public boolean isPropertyAgeSet() {",
+        "    return _unsetProperties.contains(Person_Builder.Property.AGE);",
+        "  }",
+        "",
+        "  /**",
         "   * Returns a newly-created {@link Person} based on the contents of the {@code Builder}.",
         "   *",
         "   * @throws IllegalStateException if any field has not been set",
@@ -1528,6 +1608,22 @@ public void testPrefixless() {
         "  }",
         "",
         "  /**",
+        "   * Returns true if the required property corresponding to",
+        "   * {@link Person#name()} is set.",
+        "   */",
+        "  public boolean isPropertyNameSet() {",
+        "    return _unsetProperties.contains(Person_Builder.Property.NAME);",
+        "  }",
+        "",
+        "  /**",
+        "   * Returns true if the required property corresponding to",
+        "   * {@link Person#age()} is set.",
+        "   */",
+        "  public boolean isPropertyAgeSet() {",
+        "    return _unsetProperties.contains(Person_Builder.Property.AGE);",
+        "  }",
+        "",
+        "  /**",
         "   * Returns a newly-created {@link Person} based on the contents of the {@code Builder}.",
         "   *",
         "   * @throws IllegalStateException if any field has not been set",