409 chemo dose exception

[hknahal]

Related to #409

• Updated drugDose validation script to check that the prescribed/actual drug dose fields are not submitted when the 'chemotherapy_drug_dose_units' has an exception value of 'Not applicable'.

To test:

• Upload program exceptions file for 'chemotherapy_drug_dose_units' = 'Not applicable'
• Submit chemotherapy table where 'chemotherapy_drug_dose_units' = 'Not applicable'
  --> If 'prescribed_cumulative_drug_dose' and/or 'actual_cumulative_drug_dose' fields are submitted, then validation should fail.
  --> If 'prescribed_cumulative_drug_dose' and/or 'actual_cumulative_drug_dose' fields are not submitted (left empty), then validation should pass

[hknahal]

Tested on DEV using HNAHAL-CA

Test case 1: Missing dose when dose units have been submitted
If chemotherapy_drug_dose_units has an enum submitted from the dictionary (ex. chemotherapy_drug_dose_units = mg/m2) and prescribed_cumulative_drug_dose and actual_cumulative_drug_dose fields are left empty, the validation should fail.

Result: Validation fails as expected

Test case 2: Dose field(s) are submitted when chemotherapy_drug_dose_units has a clinical exception value of Not applicable
If chemotherapy_drug_dose_units has a clinical exception so that chemotherapy_drug_dose_units = Not applicable, but both/either prescribed_cumulative_drug_dose and actual_cumulative_drug_dose fields are submitted, the validation should fail.

Result: Validation fails as expected

[Buwujiu]

Tested in Dev HNAHAL-CA, working as expected!