Implement the initial framework skeleton

internal/artifact/reader_test.go

@@ -0,0 +1,101 @@
+package artifact
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"gitea.maximumdirect.net/eric/scriptorium/internal/domain"
+)
+
+func TestCompositeReader_Read(t *testing.T) {
+	reader := NewCompositeReader()
+	ctx := context.Background()
+
+	t.Run("inline artifact", func(t *testing.T) {
+		ref := domain.ArtifactRef{
+			Type: domain.ArtifactRefInline,
+			Body: "hello world",
+		}
+		art, err := reader.Read(ctx, ref)
+		if err != nil {
+			t.Fatalf("unexpected error: %v", err)
+		}
+		if string(art.Body) != "hello world" {
+			t.Errorf("expected 'hello world', got %s", string(art.Body))
+		}
+		if art.Hash == "" {
+			t.Error("expected hash to be computed")
+		}
+	})
+
+	t.Run("inline artifact missing body", func(t *testing.T) {
+		ref := domain.ArtifactRef{
+			Type: domain.ArtifactRefInline,
+			Body: "",
+		}
+		_, err := reader.Read(ctx, ref)
+		if err == nil || err != ErrMissingInlineBody {
+			t.Errorf("expected ErrMissingInlineBody, got %v", err)
+		}
+	})
+
+	t.Run("unsupported ref type", func(t *testing.T) {
+		ref := domain.ArtifactRef{
+			Type: domain.ArtifactRefS3,
+			URI:  "s3://bucket/key",
+		}
+		_, err := reader.Read(ctx, ref)
+		if err == nil {
+			t.Error("expected error for unsupported type")
+		}
+	})
+}
+
+func TestFileReader_Read(t *testing.T) {
+	content := []byte("test file content")
+	tmpFile, err := os.CreateTemp("", "artifact_test_*.txt")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove(tmpFile.Name())
+
+	if _, err := tmpFile.Write(content); err != nil {
+		t.Fatal(err)
+	}
+	tmpFile.Close()
+
+	reader := NewCompositeReader()
+	ctx := context.Background()
+
+	t.Run("file artifact loading", func(t *testing.T) {
+		ref := domain.ArtifactRef{
+			Type: domain.ArtifactRefFile,
+			URI:  tmpFile.Name(),
+		}
+		art, err := reader.Read(ctx, ref)
+		if err != nil {
+			t.Fatalf("unexpected error: %v", err)
+		}
+		if string(art.Body) != string(content) {
+			t.Errorf("expected %s, got %s", string(content), string(art.Body))
+		}
+		if art.Name == "" {
+			t.Error("expected name to be inferred from filename")
+		}
+		if art.Hash == "" {
+			t.Error("expected hash to be computed")
+		}
+	})
+
+	t.Run("missing file path", func(t *testing.T) {
+		ref := domain.ArtifactRef{
+			Type: domain.ArtifactRefFile,
+			URI:  "",
+		}
+		_, err := reader.Read(ctx, ref)
+		if err == nil || err != ErrMissingFilePath {
+			t.Errorf("expected ErrMissingFilePath, got %v", err)
+		}
+	})
+}