code_coverage_12.java

@Parameters(name = "{index}: CalculatorTest({0})={1}, throws {2}")
public static Collection<Object[]> data() {
  return Arrays.asList(new Object[][]{
    {"1 + 1", 2, null},
    {"1 + 1 + 1", 3, null},
    {"1–1", 0, null},
    {"1 * 1", 1, null},
    {"1 / 1", 1, null},
    {"( 1 + 1 )", 2, null},
    {"+", 0, new CalculatorException("Invalid expression: +")},
    {"1 1", 0, new CalculatorException("Invalid expression: 1 1")},
    {"1 / 1 * 1 ", 1, null},
    {"( 1–1 )", 0, null},
    {"( 1 + 1–1 * 1 / 1 )", 1, null},
    {"( 1 + 1 * 1 )", 2, null},
    {"1 ( 1", 0, new CalculatorException("Invalid expression: 1 ( 1")},
    {"1 + + 1", 0, new CalculatorException("Invalid expression: 1 + + 1")}
  });
}