Calculate tax from buyer geography: Acceptance Test Set

Coverage

Show evidence (sources, provenance, origins, pinned commits)

6 scenarios proving CAP-COM-CAT-004; 6 bound to an existing test.

01 Tax-zone validation reports invalid configurationapinegativetest

Proves: BR-CAP-COM-CAT-004-01 BR-CAP-COM-CAT-004-02
Preconditions: A tax-zone request can be submitted
Steps: Use an unassigned country, excessive rate, missing rate name and reversed rate interval
Expected: Validation identifies each issue without saving the zone
Data: none
Bound to: services-commerce:modules/configuration/tests/e2e/tax-zones.e2e.spec.js#answers 400 to a country code that is not two upper-case letters, naming the field
services-commerce:modules/configuration/tests/e2e/tax-zones.e2e.spec.js#answers 400 to a rate past the ceiling and to a rate without a name, naming the field
services-commerce:modules/configuration/tests/e2e/tax-zones.e2e.spec.js#answers 400 to a rate whose effective_from follows its effective_to, naming the field, not the database rule, and saves nothing (DEF-COM-0866)
Source: services-commerce:modules/configuration/tests/e2e/tax-zones.e2e.spec.js#answers 400 to a country code that is not two upper-case letters, naming the field

02 Tax-prefix clearing requires explicit nullunitnegativetest

Proves: BR-CAP-COM-CAT-004-03
Preconditions: A saved zone carries H2X
Steps: Replace its prefix with spaces and then null
Expected: Spaces fail validation; null removes the prefix
Data: none
Bound to: services-commerce:modules/configuration/tests/unit/api/blank-tax-zone-values.spec.js#refuses a whitespace-only postal_code_prefix on a replacement 400 naming the field, instead of clearing H2X
services-commerce:modules/configuration/tests/unit/api/blank-tax-zone-values.spec.js#clears postal_code_prefix on an explicit null, the one way to clear it
Source: services-commerce:modules/configuration/tests/unit/api/blank-tax-zone-values.spec.js#refuses a whitespace-only postal_code_prefix on a replacement 400 naming the field, instead of clearing H2X

03 Tax applicability follows product-type selectionunittest

Proves: BR-CAP-COM-CAT-004-04
Preconditions: Rates include unrestricted and selected-type configurations
Steps: Calculate tax for several product types and submit a list of 101 types
Expected: Only matching rates contribute, and the oversized list fails
Data: none
Bound to: services-commerce:modules/pricing/tests/unit/tax/zone-tax-calculation.spec.js#applies to every product type when it names none, and to the named ones alone otherwise
services-commerce:modules/configuration/tests/unit/api/blank-tax-zone-values.spec.js#refuses 101 product types, one past the limit, naming product_type_ids
Source: services-commerce:modules/pricing/tests/unit/tax/zone-tax-calculation.spec.js#applies to every product type when it names none, and to the named ones alone otherwise

04 Specificity selects the rate components to roundunittest

Proves: BR-CAP-COM-CAT-004-05 BR-CAP-COM-CAT-004-06
Preconditions: Country, region and prefix zones match the address
Steps: Calculate tax for an address matching the prefix zone
Expected: That zone supplies individually rounded components whose sum is the line tax
Data: none
Bound to: services-commerce:modules/pricing/tests/unit/tax/zone-tax-calculation.spec.js#scores a prefix over a region over a country alone
services-commerce:modules/pricing/tests/unit/tax/zone-tax-calculation.spec.js#sums every applicable rate per line, each rounded on its own, and names each component
services-commerce:modules/pricing/tests/unit/tax/zone-tax-calculation.spec.js#rounds half away from zero to a whole minor unit
Source: services-commerce:modules/pricing/tests/unit/tax/zone-tax-calculation.spec.js#scores a prefix over a region over a country alone

05 Address requirements differ between checkout and displayunitnegativetest

Proves: BR-CAP-COM-CAT-004-07
Preconditions: A zone can tax every product type
Steps: Request checkout and display calculations without an address
Expected: Checkout refuses the taxable line; display returns zero tax with a warning
Data: none
Bound to: services-commerce:modules/pricing/tests/unit/tax/zone-table-tax.spec.js#refuses a line a zone’s rate for every product type could tax, naming the line and its product
services-commerce:modules/pricing/tests/unit/tax/zone-table-tax.spec.js#answers zero with the no-address warning, not a refusal, reading nothing
Source: services-commerce:modules/pricing/tests/unit/tax/zone-table-tax.spec.js#refuses a line a zone’s rate for every product type could tax, naming the line and its product

06 Tax reads do not grant tax writesapinegativetest

Proves: BR-CAP-COM-CAT-004-10
Preconditions: The caller is a read-only tax user
Steps: Inspect and attempt to change zones
Expected: Inspection succeeds and changes fail permission checks
Data: Read-exclusively persona
Bound to: services-commerce:modules/configuration/tests/e2e/configuration-security.e2e.spec.js#lists and reads the tax zones
services-commerce:modules/configuration/tests/e2e/configuration-security.e2e.spec.js#is refused the creates, 403 permission_missing
Source: services-commerce:modules/configuration/tests/e2e/configuration-security.e2e.spec.js#lists and reads the tax zones