feat: add ontology material ingestion

internal/ontology/service_test.go

@@ -0,0 +1,53 @@
+package ontology
+
+import "testing"
+
+func TestIngestCreatesSourceBackedCandidates(t *testing.T) {
+	service := NewService(NewMemoryStore())
+
+	result, err := service.Ingest(IngestInput{
+		Title:      "Backend interview notes",
+		SourceType: "markdown",
+		Body:       "Idempotent API retries need transactions. Cache invalidation uses TTL tradeoffs.",
+	})
+	if err != nil {
+		t.Fatalf("Ingest error: %v", err)
+	}
+	if result.Material.ID == "" {
+		t.Fatal("expected material id")
+	}
+	if len(result.Snapshot.Concepts) == 0 {
+		t.Fatal("expected concept candidates")
+	}
+	for _, concept := range result.Snapshot.Concepts {
+		if concept.ReviewState != ReviewCandidate {
+			t.Fatalf("review state = %q", concept.ReviewState)
+		}
+		if len(concept.Evidence) == 0 {
+			t.Fatal("expected concept evidence")
+		}
+	}
+	if len(result.Snapshot.Edges) == 0 {
+		t.Fatal("expected prerequisite edge candidates")
+	}
+}
+
+func TestIngestMarksGapsAsCandidates(t *testing.T) {
+	service := NewService(NewMemoryStore())
+
+	result, err := service.Ingest(IngestInput{
+		Title: "Cache note",
+		Body:  "Cache invalidation is hard.",
+	})
+	if err != nil {
+		t.Fatalf("Ingest error: %v", err)
+	}
+	if len(result.Snapshot.Gaps) == 0 {
+		t.Fatal("expected gaps")
+	}
+	for _, gap := range result.Snapshot.Gaps {
+		if gap.ReviewState != ReviewCandidate {
+			t.Fatalf("gap review state = %q", gap.ReviewState)
+		}
+	}
+}