Add unit tests

policyengine_uk/parameters/gov/dwp/childcare_subsidies/tax_free_childcare/income_thresholds.yaml

@@ -12,7 +12,7 @@ brackets:
   - threshold:
       2015-01-01: 0
     amount:
-      2015-01-01: 0
+      2015-01-01: 1_331
   - threshold:
       2015-01-01: 18
     amount:

policyengine_uk/tests/policy/baseline/gov/dwp/childcare_subsidies/tax_free_childcare/childcare_age_child_condition.yaml

@@ -0,0 +1,31 @@
+- name: Under standard age limit - eligible
+  period: 2025
+  input:
+    age: 10
+    is_disabled_for_benefits: false
+  output:
+    child_age_eligible: true
+
+- name: Over standard age limit and not disabled - ineligible
+  period: 2025
+  input:
+    age: 12
+    is_disabled_for_benefits: false
+  output:
+    child_age_eligible: false
+
+- name: Over standard age but under disability limit and disabled - eligible
+  period: 2025
+  input:
+    age: 15
+    is_disabled_for_benefits: true
+  output:
+    child_age_eligible: true
+
+- name: Over disability age limit and disabled - ineligible
+  period: 2025
+  input:
+    age: 17
+    is_disabled_for_benefits: true
+  output:
+    child_age_eligible: false

policyengine_uk/tests/policy/baseline/gov/dwp/childcare_subsidies/tax_free_childcare/childcare_income_condition.yaml

@@ -0,0 +1,114 @@
+# Tests for age under 18 bracket (threshold: £1,331 quarterly)
+- name: Under threshold for age 15 with low income and no other income sources - ineligible
+  period: 2025
+  input:
+    age: 15
+    total_income: 5000  
+    private_pension_income: 0
+    savings_interest_income: 500
+    dividend_income: 0
+    property_income: 0
+  output:
+    meets_income_requirements: false
+
+- name: At threshold for age 15 - eligible
+  period: 2025
+  input:
+    age: 15
+    total_income: 6324  
+    private_pension_income: 0
+    savings_interest_income: 0
+    dividend_income: 0
+    property_income: 200
+  output:
+    meets_income_requirements: true
+
+# Tests for age 18-20 bracket (threshold: £1,788 quarterly)
+- name: Under threshold for age 19 - ineligible
+  period: 2025
+  input:
+    age: 19
+    total_income: 7000  # £1,750 quarterly
+    private_pension_income: 0
+    savings_interest_income: 0
+    dividend_income: 0
+    property_income: 0
+  output:
+    meets_income_requirements: false
+
+- name: At threshold for age 19 - eligible
+  period: 2025
+  input:
+    age: 18
+    total_income: 7152  # £1,788 quarterly
+    private_pension_income: 0
+    savings_interest_income: 0
+    dividend_income: 0
+    property_income: 0
+  output:
+    meets_income_requirements: true
+
+# Tests for age 21+ bracket (threshold: £2,379 quarterly)
+- name: Under threshold for age 22 - ineligible
+  period: 2025
+  input:
+    age: 22
+    total_income: 9000  # £2,250 quarterly
+    private_pension_income: 0
+    savings_interest_income: 0
+    dividend_income: 0
+    property_income: 0
+  output:
+    meets_income_requirements: false
+
+- name: age 18 - eligible
+  period: 2025
+  input:
+    age: 18
+    total_income: 9516  # £2,379 quarterly
+    private_pension_income: 0
+    savings_interest_income: 0
+    dividend_income: 0
+    property_income: 0
+  output:
+    meets_income_requirements: true
+
+# Tests with investment income
+- name: Above threshold but with investment income making eligible income below threshold - ineligible
+  period: 2025
+  input:
+    age: 22
+    total_income: 12000
+    private_pension_income: 3000
+    savings_interest_income: 500
+    dividend_income: 1000
+    property_income: 500
+    # Net eligible income: 7000 (£1,750 quarterly)
+  output:
+    meets_income_requirements: false
+
+- name: Edge case with investment income exactly at threshold - eligible
+  period: 2025
+  input:
+    age: 15
+    total_income: 7324
+    private_pension_income: 2000
+    savings_interest_income: 0
+    dividend_income: 0
+    property_income: 0
+    # Net eligible income: 5324 (£1,331 quarterly)
+  output:
+    meets_income_requirements: true
+
+# Test age boundary cases
+- name: Age boundary test at 18 - using higher threshold
+  period: 2025
+  input:
+    age: 18
+    total_income: 7152  
+    private_pension_income: 0
+    savings_interest_income: 100
+    dividend_income: 0
+    property_income: 0
+  output:
+    meets_income_requirements: true

policyengine_uk/tests/policy/baseline/gov/dwp/childcare_subsidies/tax_free_childcare/childcare_work_condition.yaml

@@ -0,0 +1,163 @@
+- name: Couple both working - eligible
+  period: 2025
+  input:
+   people:
+     person:
+       is_adult: true
+       in_work: true
+       incapacity_benefit: 0
+     spouse:
+       is_adult: true
+       in_work: true
+       incapacity_benefit: 0
+   benunits:
+     benunit:
+       members: [person, spouse]
+  output:
+   childcare_work_condition: true
+
+- name: Couple neither working - ineligible
+  period: 2025
+  input:
+   people:
+     person:
+       is_adult: true
+       in_work: false
+       incapacity_benefit: 0
+     spouse:
+       is_adult: true
+       in_work: false
+       incapacity_benefit: 0
+   benunits:
+     benunit:
+       members: [person, spouse]
+  output:
+   childcare_work_condition: false
+
+- name: Couple one working one with disability - eligible
+  period: 2025
+  input:
+   people:
+     person:
+       is_adult: true
+       in_work: true
+       incapacity_benefit: 0
+     spouse:
+       is_adult: true
+       in_work: false
+       incapacity_benefit: 100
+   benunits:
+     benunit:
+       members: [person, spouse]
+  output:
+   childcare_work_condition: true
+
+- name: Couple one working one with incapacity - eligible
+  period: 2025
+  input:
+   people:
+     person:
+       is_adult: true
+       in_work: true
+       incapacity_benefit: 0
+     spouse:
+       is_adult: true
+       in_work: false
+       incapacity_benefit: 100
+   benunits:
+     benunit:
+       members: [person, spouse]
+  output:
+   childcare_work_condition: true
+
+- name: Couple one working without qualifying condition - ineligible
+  period: 2025
+  input:
+   people:
+     person:
+       is_adult: true
+       in_work: true
+       incapacity_benefit: 0
+     spouse:
+       is_adult: true
+       in_work: false
+       incapacity_benefit: 0
+   benunits:
+     benunit:
+       members: [person, spouse]
+  output:
+   childcare_work_condition: false
+
+- name: Single working adult - eligible
+  period: 2025
+  input:
+   people:
+     person:
+       is_adult: true
+       in_work: true
+       incapacity_benefit: 0
+   benunits:
+     benunit:
+       members: [person]
+  output:
+   childcare_work_condition: true
+
+- name: Single non-working adult - ineligible
+  period: 2025
+  input:
+   people:
+     person:
+       is_adult: true
+       in_work: false
+       incapacity_benefit: 0
+   benunits:
+     benunit:
+       members: [person]
+  output:
+   childcare_work_condition: false
+
+- name: Couple both with disability one working - eligible
+  period: 2025
+  input:
+   people:
+     person:
+       is_adult: true
+       in_work: true
+       incapacity_benefit: 100
+     spouse:
+       is_adult: true
+       in_work: false
+       incapacity_benefit: 100
+   benunits:
+     benunit:
+       members: [person, spouse]
+  output:
+   childcare_work_condition: true
+
+- name: Single working adult with disability - eligible
+  period: 2025
+  input:
+   people:
+     person:
+       is_adult: true
+       in_work: true
+       incapacity_benefit: 100
+   benunits:
+     benunit:
+       members: [person]
+  output:
+   childcare_work_condition: true
+
+- name: Single disabled non-working adult - ineligible
+  period: 2025
+  input:
+   people:
+     person:
+       is_adult: true
+       in_work: false
+       incapacity_benefit: 100
+   benunits:
+     benunit:
+       members: [person]
+  output:
+   childcare_work_condition: false

policyengine_uk/tests/policy/baseline/gov/dwp/childcare_subsidies/tax_free_childcare/incompatibilities_childcare_eligible.yaml

@@ -0,0 +1,38 @@
+- name: Eligible - does NOT receive any of these benefits
+  period: 2025
+  input:
+    working_tax_credit: 0
+    child_tax_credit: 0
+    universal_credit: 0
+  output:
+    incompatibilities_childcare_eligible: True
+
+
+- name: Non eligible - receives benefits
+  period: 2025
+  input:
+    working_tax_credit: 1
+    child_tax_credit: 0
+    universal_credit: 0
+  output:
+    incompatibilities_childcare_eligible: False
+
+
+- name: Non eligible - receives benefits
+  period: 2025
+  input:
+    working_tax_credit: 1
+    child_tax_credit: 1
+    universal_credit: 0
+  output:
+    incompatibilities_childcare_eligible: False
+
+
+- name: Non eligible - receives benefits
+  period: 2025
+  input:
+    working_tax_credit: 1
+    child_tax_credit: 1
+    universal_credit: 1
+  output:
+    incompatibilities_childcare_eligible: False