Extract publication recovery observation

internal/publish/reconcile_test.go

@@ -0,0 +1,59 @@
+package publish
+
+import (
+	"errors"
+	"strings"
+	"testing"
+
+	"go.maximumdirect.net/releasekit/internal/git"
+)
+
+func TestClassifyPublicationObservation(t *testing.T) {
+	tagObject, commit := strings.Repeat("a", 40), strings.Repeat("b", 40)
+	base := Evidence{Endpoint: "file:///remote.git", Tag: "v1.2.3", TagObject: tagObject, CandidateCommit: commit}
+	tests := []struct {
+		name     string
+		evidence Evidence
+		ref      git.RemoteRef
+		want     State
+		wantKind string
+	}{
+		{"absent with partial identity", Evidence{Endpoint: base.Endpoint, Tag: base.Tag}, git.RemoteRef{State: git.RefAbsent}, NotPublished, ""},
+		{"matching tag without peel", base, git.RemoteRef{State: git.RefPresent, Object: tagObject}, Published, ""},
+		{"matching tag and commit", base, git.RemoteRef{State: git.RefPresent, Object: strings.ToUpper(tagObject), Peeled: strings.ToUpper(commit)}, Published, ""},
+		{"tag conflict", base, git.RemoteRef{State: git.RefPresent, Object: strings.Repeat("c", 40), Peeled: commit}, Conflict, ""},
+		{"commit conflict", base, git.RemoteRef{State: git.RefPresent, Object: tagObject, Peeled: strings.Repeat("c", 40)}, Conflict, ""},
+		{"missing tag object", Evidence{Endpoint: base.Endpoint, Tag: base.Tag}, git.RemoteRef{State: git.RefPresent, Object: tagObject}, Unknown, "missing_evidence"},
+		{"missing commit with peel", Evidence{Endpoint: base.Endpoint, Tag: base.Tag, TagObject: tagObject}, git.RemoteRef{State: git.RefPresent, Object: tagObject, Peeled: commit}, Unknown, "missing_evidence"},
+		{"unreadable", base, git.RemoteRef{State: git.RefUnreadable}, Unknown, "inconsistent_observation"},
+		{"inconsistent", base, git.RemoteRef{State: git.RefConflict}, Unknown, "inconsistent_observation"},
+		{"missing endpoint", Evidence{Tag: base.Tag}, git.RemoteRef{State: git.RefAbsent}, Unknown, "missing_evidence"},
+		{"missing tag", Evidence{Endpoint: base.Endpoint}, git.RemoteRef{State: git.RefAbsent}, Unknown, "missing_evidence"},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			got, err := classify(test.evidence, test.ref)
+			if got.State != test.want {
+				t.Fatalf("state=%q want %q", got.State, test.want)
+			}
+			var recovery *RecoveryError
+			if test.wantKind == "" {
+				if err != nil {
+					t.Fatalf("error=%v", err)
+				}
+				return
+			}
+			if !errors.As(err, &recovery) || recovery.Kind != test.wantKind {
+				t.Fatalf("error=%v want kind %q", err, test.wantKind)
+			}
+		})
+	}
+}
+
+func TestClassifyReportsAllMissingIdentityFields(t *testing.T) {
+	_, err := classify(Evidence{}, git.RemoteRef{State: git.RefPresent})
+	var recovery *RecoveryError
+	if !errors.As(err, &recovery) || strings.Join(recovery.MissingFields, ",") != "endpoint,tag" {
+		t.Fatalf("classification error = %#v", err)
+	}
+}