实数的步骤文件方法

Question

Feature: Addition of decimal Feature

Scenario: Add two positive decimal numbers
Given I am on the demo page
When I add the numbers 2.25 and 3.25
Then the result is 5.5

I think the when method should be something like

 @When("^I add the numbers (-?\\d+\\.?\\d*) and (-?\\d+\\.?\\d*)$")
public void i_add_the_numbers_and(double x, double y) throws Throwable {
   demoPage.addNumbers(x, y);
}

@Then("^the result is (-?\\d+\\.?\\d*)$")
public void the_result_is(double sum) throws Throwable {
    assertEquals(demoPage.getCalculatorResults(), sum);
}
}

The problem is that the number regex is not matching real numbers. example -1.2 or 5.4 or -23.234

How do I match all postive and negative real numbers?

Answer 1

thanks NeplatnyUdaj

the following works

/**
 * @param x
 * @param y
 * @throws Throwable
 */
@When("^I add the numbers (-?\\d+\\.?\\d*) and (-?\\d+\\.?\\d*)$")
public void i_add_the_numbers_and(float x, float y) throws Throwable {
  demoPage.addNumbers(x, y);
}

 /**
 * @param sum
 * @throws Throwable
 */
@Then("^the result is (-?\\d+\\.?\\d*)$")
public void the_result_is(float sum) throws Throwable {
    assertEquals(demoPage.getCalculatorResults(), sum);
}

so why would using float or BigDecimal cause the method to work? My understanding is that double is a longer version of float. so if float works why won't double