Expose Markdown validation selection

internal/validation/markdown_check_test.go

@@ -192,6 +192,49 @@ func TestCheckMarkdownLinksPreservesAnchorReadCause(t *testing.T) {
 	}
 }
 
+func TestRunSelectsMarkdownWithCombinedGoChecksAndReportsOutOfScopeLinks(t *testing.T) {
+	repository, _ := committedMarkdownTree(t, map[string][]byte{
+		"guide.md": []byte("[outside](../../outside.md)\n"),
+	})
+	commit := strings.TrimSpace(gitTree(t, repository, "rev-parse", "HEAD"))
+	goLog := installGoShim(t, "", false)
+	var output bytes.Buffer
+	err := Run(context.Background(), Request{
+		RepositoryDir: repository,
+		Commit:        commit,
+		Output:        &output,
+		Settings: Settings{
+			Race:           true,
+			FullVet:        true,
+			CompileTargets: []Target{{OS: "linux", Arch: "amd64"}},
+			Markdown:       &MarkdownSettings{},
+		},
+	})
+	if err != nil {
+		t.Fatalf("Run() error = %v, want out-of-scope observation to succeed", err)
+	}
+	if got := output.String(); !strings.Contains(got, "outside the checkout") || !strings.Contains(got, "out of scope") {
+		t.Fatalf("Run() output = %q, want outside-checkout observation", got)
+	}
+	commands := readGoShimLog(t, goLog)
+	var testCommands []string
+	var validationCommands []string
+	for _, command := range commands {
+		if strings.HasPrefix(command, "test ") {
+			testCommands = append(testCommands, command)
+		}
+		if strings.HasPrefix(command, "test ") || strings.HasPrefix(command, "vet ") || strings.HasPrefix(command, "build ") {
+			validationCommands = append(validationCommands, command)
+		}
+	}
+	if len(testCommands) != 1 || !strings.Contains(testCommands[0], "-race") || !strings.Contains(testCommands[0], "-vet=off") {
+		t.Fatalf("Go test commands = %#v, want one race-enabled suite with test-time vet disabled", testCommands)
+	}
+	if len(validationCommands) != 3 || !strings.HasPrefix(validationCommands[0], "test ") || !strings.HasPrefix(validationCommands[1], "vet ") || !strings.HasPrefix(validationCommands[2], "build ") {
+		t.Fatalf("Go validation commands = %#v, want test, full vet, and target compilation before Markdown", validationCommands)
+	}
+}
+
 func committedMarkdownTree(t *testing.T, files map[string][]byte) (string, *CandidateTree) {
 	t.Helper()
 	repository := newTreeRepository(t)