Test the VA itemized deductions structure

policyengine_us/tests/policy/baseline/gov/states/va/tax/income/integration.yaml

@@ -78,3 +78,57 @@
   output:  # expected results from patched TAXSIM35 2024-03-01 version
     va_income_tax: 1_969.48
 
+- name: Tax unit with taxsimid 7856 in k21.its.csv and k21.ots.csv
+  absolute_error_margin: 0.01
+  period: 2021
+  input:
+    people:
+      person1:
+        age: 63
+        employment_income: 82010
+        qualified_dividend_income: 4005.0
+        taxable_interest_income: 5505.0
+        short_term_capital_gains: 2005.0
+        long_term_capital_gains: 2505.0
+        rental_income: 4505.0
+        taxable_private_pension_income: 1500.0
+        social_security_retirement: 5000.0
+        real_estate_taxes: 24000
+        mortgage_interest: 36000
+        self_employment_income: 158010
+        business_is_qualified: true
+        business_is_sstb: false
+        w2_wages_from_qualified_business: 100e6
+      person2:
+        age: 63
+        employment_income: 82010
+        qualified_dividend_income: 4005.0
+        taxable_interest_income: 5505.0
+        short_term_capital_gains: 2005.0
+        long_term_capital_gains: 2505.0
+        rental_income: 4505.0
+        taxable_private_pension_income: 1500.0
+        social_security_retirement: 5000.0
+      person3:
+        age: 16
+      person4:
+        age: 16
+      person5:
+        age: 16
+    tax_units:
+      tax_unit:
+        members: [person1, person2, person3, person4, person5]
+        tax_unit_itemizes: True
+        state_income_tax: 19956.35
+    spm_units:
+      spm_unit:
+        members: [person1, person2, person3, person4, person5]
+        snap: 0  # not in TAXSIM35
+        tanf: 0  # not in TAXSIM35
+    households:
+      household:
+        members: [person1, person2, person3, person4, person5]
+        state_fips: 51  # VA
+  output:  # expected results from patched TAXSIM35 2024-03-21 version
+    va_itemized_deductions: 35_282.85
+    # va_income_tax: 16559.04 expected output from PE US