RFidHelperTest class

[ThomasPautler952194]

Pull Request Summary

Closes #359
New Test class for RFidHelper

test included

• constructor_WithResetPin_CreatesComponent
  Verifies that the RFidHelper constructor with a reset pin creates exactly one RfidComponent instance.
  • constructor_WithoutResetPin_CreatesComponent
    Ensures the constructor without a reset pin also creates exactly one RfidComponent.
  • constructor_NullContext_ThrowsNPE
    Confirms that passing null for the Context throws a NullPointerException.
  • constructor_NullSpiConfig_ThrowsNPE
    Confirms that passing null for SpiConfig throws a NullPointerException.
  • writeToCard_CallsWaitForAnyCard
    Verifies that writeToCard() invokes waitForAnyCard() on the underlying RfidComponent.
  • readFromCard_CallsWaitForAnyCard
    Verifies that readFromCard() invokes waitForAnyCard() on the RfidComponent.
  • resetScanner_CallsReset
    Ensures resetScanner() calls the reset() method on the RfidComponent.

all tests pass and the project builds successfully

[leandrumartin]

Tests look good so far, but I think at least one more should be added. We don't want just to test that the read/write operations are called, but also that they are successful and read/write the info correctly. So it would be helpful to include a test that writes an object (something simple like an Integer) out, reads it, and sees whether the result is the same as what was initially sent out.