### Question:
TriangleInterface { public TriangleInterface triangleType(String triangleType) { this.triangleType = triangleType; return this; }  TriangleInterface triangleType(String triangleType); @ApiModelProperty(required = true, value = "") @JsonProperty(JSON_PROPERTY_TRIANGLE_TYPE) @JsonInclude(value = JsonInclude.Include.ALWAYS) String getTriangleType(); void setTriangleType(String triangleType); @Override boolean equals(Object o); @Override int hashCode(); @Override String toString(); static final String JSON_PROPERTY_TRIANGLE_TYPE; }### Answer:
@Test public void triangleTypeTest() { }