automatic: Test errors reporting and emitting

This is a follow-up to commit 12eba2f and
6965c62 adjusted for the dnf5 behavior.

dnf-behave-tests/dnf/dnf-automatic/error-report.feature

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+@dnf5
+Feature: dnf-automatic reports an error when transaction failed
+
+
+Background:
+Given I use repository "dnf-ci-automatic-update"
+
+
+# First, install the "test-1.0" package, which should proceed successfully.
+# Then, attempt to update to "test-1.1", which contains a broken scriptlet.
+# An error should be reported during the installation of the update.
+@bz2170093
+Scenario: dnf-automatic reports an error when package installation failed
+  Given I successfully execute dnf with args "install test-1.0"
+   When I execute dnf with args "automatic --installupdates"
+   Then the exit code is 1
+    And RPMDB Transaction is empty
+    And stdout contains "Failed to install upgrades."
+    And stdout contains "Error in pre-install scriptlet"
+    And stdout contains "Transaction failed: Rpm transaction failed."
+
+# https://github.com/rpm-software-management/dnf/issues/1918
+# https://issues.redhat.com/browse/RHEL-61882
+Scenario: emitters report errors by default
+  Given I create and substitute file "/etc/dnf/automatic.conf" with
+    """
+    [commands]
+    download_updates = yes
+    apply_updates = yes
+
+    [emitters]
+    emit_via = command_email
+
+    [command_email]
+    command_format = "echo {{body}} > {context.dnf.tempdir}/dnf_error"
+    """
+    And I successfully execute dnf with args "install test-1.0"
+    And file "/{context.dnf.tempdir}/dnf_error" does not exist
+   When I execute dnf with args "automatic --installupdates"
+   Then the exit code is 1
+    And RPMDB Transaction is empty
+    And file "/{context.dnf.tempdir}/dnf_error" contains lines
+    """
+    Transaction failed: Rpm transaction failed.
+    """

dnf-behave-tests/fixtures/specs/dnf-ci-automatic-update/test-1.0-1.spec

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+Name:           test
+Epoch:          0
+Version:        1.0
+Release:        1
+
+License:        Public Domain
+URL:            None
+
+Summary:        The made up package for dnf-automatic updates testing.
+
+%description
+Installs correctly.
+
+%files
+
+%changelog

dnf-behave-tests/fixtures/specs/dnf-ci-automatic-update/test-1.1-1.spec

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+Name:           test
+Epoch:          0
+Version:        1.1
+Release:        1
+
+License:        Public Domain
+URL:            None
+
+Summary:        The made up package for dnf-automatic updates testing.
+
+%description
+Fails on pre scriptlet.
+
+%pre -p <lua>
+error("failing on pre scriptlet", 1)
+
+%files
+
+%changelog