Question

I have a Grails integration test that extends GroovyTestCase with two test methods. The first method executes successfully, but the second fails with a groovy.lang.MissingMethodException:

Failure: testMapBudgetFailure(com.ross.budget.BudgetServiceTests)
groovy.lang.MissingMethodException: No signature of method:
com.ross.budget.Budget.save() is applicable for argument types: () values: []
Possible solutions: save(), save(boolean), save(java.util.Map), wait(), last(), any()
at
com.ross.budget.BudgetServiceTests.testMapBudgetFailure(BudgetServiceTests.groovy:45)

Even though the exact same method call b.save() is in the first method. If I comment the first method the second test runs as expected. Why are the two test methods behaving differently?

Full class listing:

package com.ross.budget



import grails.test.mixin.*
import org.junit.*

/**
 * See the API for {@link grails.test.mixin.services.ServiceUnitTestMixin} for usage instructions
 */
@TestFor(BudgetService)
class BudgetServiceTests extends GroovyTestCase {


    BudgetService budgetService

    void testMapBudgetSuccess() {
        Budget b = new Budget()
        b.month = new Date(2012, 9, 1)
        b.amount = new BigDecimal(10.0)
        b.save()

        Account a = new Account()
        a.name = "Test"
        a.institution = "Test"
        a.description = "Test Account"
        a.save()

        Transaction t = new Transaction()
        t.account = a
        t.postDate = new Date(2012, 9, 5)
        t.amount = 10.0
        t.save()

        boolean result = budgetService.mapTransaction(t)
        assertTrue("Returned failed match.", result)
        assertNotNull("No budget set", t.budget)

    }

    void testMapBudgetFailure() {
        Budget b = new Budget()
        b.month = new Date(112, 5, 1)
        b.amount = new BigDecimal(10.0)
        b.save()

        Account a = new Account()
        a.name = "Test"
        a.institution = "Test"
        a.description = "Test Account"
        a.save()

        Transaction t = new Transaction()
        t.account = a
        t.postDate = new Date(112, 6, 5)
        t.amount = 10.0
        t.save()

        boolean result = budgetService.mapTransaction(t)
        assertFalse("Returned match.", result)
        assertNull("Budget set", t.budget)

    }
}

_{I know the code is copy paste and not lovely. It’s quick test case for a personal project}

Answer 1

According to the Grails doc, you should either use @TestFor for a unit-test or extend GroovyTestCase for an integration test, not both.