Fix distinct type row mapping

2026-09-02 11:50:44 -05:00
parent f2f41782d4
commit 170359d840
4 changed files with 92 additions and 4 deletions
@@ -0,0 +1,84 @@
+import std/[options, times, unittest]
+
+import uuids
+
+import fiber_orm/util
+
+
+type
+  StringId = distinct string
+  NestedStringId = distinct StringId
+  UuidId = distinct UUID
+  Count = distinct int
+  Ratio = distinct float
+  Enabled = distinct bool
+
+  State = enum
+    pending
+    complete
+
+  DistinctState = distinct State
+
+  DistinctModel = object
+    id: StringId
+    nestedId: NestedStringId
+    userId: UuidId
+    count: Count
+    ratio: Ratio
+    enabled: Enabled
+    state: DistinctState
+    optionalId: Option[StringId]
+    absentId: Option[StringId]
+    relatedIds: seq[StringId]
+    occurredAt: DateTime
+
+
+suite "distinct type row mapping":
+
+  test "parses each distinct type through its backing type":
+    let model = rowToModel(DistinctModel, @[
+      "item_123",
+      "nested_123",
+      "07e268ed-a3c1-4952-bc45-778b3000b76c",
+      "42",
+      "1.25",
+      "true",
+      "complete",
+      "optional_123",
+      "",
+      "{related_1,related_2}",
+      "2026-08-26 14:32:10.123457+00",
+    ])
+
+    check:
+      string(model.id) == "item_123"
+      string(StringId(model.nestedId)) == "nested_123"
+      UUID(model.userId) ==
+        parseUUID("07e268ed-a3c1-4952-bc45-778b3000b76c")
+      int(model.count) == 42
+      float(model.ratio) == 1.25
+      bool(model.enabled)
+      State(model.state) == complete
+      model.optionalId.isSome
+      string(model.optionalId.get) == "optional_123"
+      model.absentId.isNone
+      model.relatedIds.len == 2
+      string(model.relatedIds[0]) == "related_1"
+      string(model.relatedIds[1]) == "related_2"
+      model.occurredAt.nanosecond == 123_457_000
+
+  test "preserves backing-type parse failures":
+    expect ValueError:
+      discard rowToModel(DistinctModel, @[
+        "item_123",
+        "nested_123",
+        "not-a-uuid",
+        "42",
+        "1.25",
+        "true",
+        "complete",
+        "",
+        "",
+        "{}",
+        "2026-08-26 14:32:10+00",
+      ])