### Question:
ConditionalUniqueColumnCombination implements Result { @Override public String toString() { StringBuilder builder = new StringBuilder(); builder.append(columnCombination.toString()); builder.append(CUCC_SEPARATOR); builder.append(condition.toString()); builder.append(" Coverage: "); builder.append(this.condition.getCoverage()); return builder.toString(); } protected  ConditionalUniqueColumnCombination();  ConditionalUniqueColumnCombination(ColumnCombination columnCombination,
                                            ColumnCondition columnCondition); ColumnCombination getColumnCombination(); void setColumnCombination(ColumnCombination columnCombination); ColumnCondition getCondition(); void setCondition(ColumnCondition condition); @XmlTransient @Override void sendResultTo(OmniscientResultReceiver resultReceiver); String buildPatternTableauTable(); @Override String toString(); String buildPatternTableau(); @Override boolean equals(Object o); @Override int hashCode(); static final String LINESEPARATOR; static final String CUCC_SEPARATOR; }### Answer:
@Test public void testToString() { ColumnIdentifier expectedColumn1 = new ColumnIdentifier("table1", "column1"); ColumnIdentifier expectedColumn2 = new ColumnIdentifier("table2", "column2"); ColumnConditionOr outerCondition = new ColumnConditionOr(); outerCondition.add( new ColumnConditionAnd(new ColumnConditionValue(expectedColumn1, "condition1"), new ColumnConditionValue(expectedColumn2, "condition2"))); outerCondition .add(new ColumnConditionValue(expectedColumn1, "condition3")); ConditionalUniqueColumnCombination actualConditionalColumnCombination = new ConditionalUniqueColumnCombination( new ColumnCombination(expectedColumn1, expectedColumn2), outerCondition); String expectedStringRepresentation = "[table1.column1, table2.column2]" + ConditionalUniqueColumnCombination.LINESEPARATOR + "[table1.column1, table2.column2]" + ConditionalUniqueColumnCombination.LINESEPARATOR + " condition3 - " + ConditionalUniqueColumnCombination.LINESEPARATOR + " condition1 condition2 " + ConditionalUniqueColumnCombination.LINESEPARATOR + "Coverage: 0.0" + ConditionalUniqueColumnCombination.LINESEPARATOR + ""; assertEquals(expectedStringRepresentation, actualConditionalColumnCombination.buildPatternTableau()); }