add docs and tests

models/intermediate/core/schema.yaml

@@ -349,7 +349,86 @@ models:
         description: estimated date from the timestamp of when the verification request was completed.
 
       - name: is_completed_at_overriden_with_used_link_at
-        data_type: boolean 
-        description: |
-          boolean indicating if the estimated dates have been overriden with the used link since 
-          the initial computation was still considering an end date before a starting date.
+        data_type: boolean
+        description: >
+          boolean indicating if the estimated dates have been overriden with the
+          used link since 
+
+          the initial computation was still considering an end date before a
+          starting date.
+  - name: int_core__verification_payments
+    columns:
+      - name: id_verification_to_payment
+        data_type: bigint
+        description: Unique ID for the rel between the payment verification and the
+          payment at hand.
+        tests:
+          - unique
+          - not_null
+      - name: id_payment
+        data_type: bigint
+        description: Unique ID for the payment itself.
+        tests:
+          - unique
+          - not_null
+      - name: is_refundable
+        data_type: boolean
+      - name: created_at_utc
+        data_type: timestamp without time zone
+      - name: updated_at_utc
+        data_type: timestamp without time zone
+      - name: payment_due_at_utc
+        data_type: timestamp without time zone
+        tests:
+          - not_null
+      - name: payment_due_date_utc
+        data_type: date
+        tests:
+          - not_null
+      - name: payment_paid_at_utc
+        data_type: timestamp without time zone
+      - name: payment_paid_date_utc
+        data_type: date
+      - name: payment_reference
+        data_type: character varying
+      - name: refund_due_at_utc
+        data_type: timestamp without time zone
+      - name: refund_due_date_utc
+        data_type: date
+      - name: payment_refunded_at_utc
+        data_type: timestamp without time zone
+      - name: payment_refunded_date_utc
+        data_type: date
+      - name: refund_payment_reference
+        data_type: character varying
+      - name: id_guest_user
+        data_type: character varying
+      - name: id_verification
+        data_type: bigint
+      - name: id_verification_request
+        data_type: bigint
+      - name: verification_payment_type
+        data_type: character varying
+      - name: amount_in_txn_currency
+        data_type: numeric
+        tests:
+          - not_null
+      - name: currency
+        data_type: character varying
+        tests:
+          - not_null
+      - name: amount_in_gbp
+        data_type: numeric
+        tests:
+          - not_null
+      - name: payment_status
+        data_type: character varying
+      - name: notes
+        data_type: character varying
+    description: >-
+      A simplified table that holds guest journey payments with details around
+      when they happen, what service was being paid, what was the related
+      verification request, etc.
+
+
+      Currency rates are converted to GBP with our simple exchange rates view.