513 lines
24 KiB
EmacsLisp
513 lines
24 KiB
EmacsLisp
;;; etaf-render-port-tests.el --- M3a renderer-port gates -*- lexical-binding: t; -*-
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;; SPDX-License-Identifier: GPL-3.0-or-later
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(require 'cl-lib)
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(require 'ert)
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(require 'etaf-render-port)
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(defconst etaf-render-port-test--root
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(file-name-directory
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(directory-file-name
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(file-name-directory (or load-file-name buffer-file-name))))
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"ETAF package root used by static bootstrap-owner checks.")
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(ert-deftest etaf-render-port-package-metadata-requires-final-v2-stack ()
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"ETAF 0.2.1 declares the Ebox 3 and TP 2 runtime requirements."
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(require 'package)
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(with-temp-buffer
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(insert-file-contents
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(expand-file-name "etaf.el" etaf-render-port-test--root))
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(let ((description (package-buffer-info)))
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(should (equal (package-desc-version description) '(0 2 1)))
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(should
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(equal (package-desc-reqs description)
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'((emacs (29 1)) (ebox (3 0 0)) (tp (2 0 0))))))))
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(ert-deftest etaf-render-port-selects-valid-v2-immutably ()
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"A valid provider produces one immutable v2 selected port."
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(let* ((port (etaf-render-port--bootstrap))
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(capabilities (etaf-render-port-capabilities port)))
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(should (etaf-render-port-p port))
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(should (eq (etaf-render-port-route port) 'v2))
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(should (= (etaf-render-port-spi-version port) 2))
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(should (eq (etaf-render-port-schema-version port)
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'ebox-framework-spi-schema/v2))
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(should (memq (etaf-render-port-tp-protocol port)
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etaf-render-port--accepted-tp-protocols))
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(should (eq (etaf-render-port-initial-function port)
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'ebox-framework-spi-initial))
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(should (eq (etaf-render-port-update-function port)
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'ebox-framework-spi-update))
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(should (eq (etaf-render-port-revision-function port)
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'ebox-surface-buffer-revision))
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(should (eq (etaf-render-port-bootstrap-outcome port)
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'valid-v2-selected))
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(setcar capabilities 'mutated)
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(should (eq (car (etaf-render-port-capabilities port))
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'initial-paired-stage-rollback))
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(should-error
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(eval `(setf (etaf-render-port--route ',port) 'broken)))))
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(ert-deftest etaf-render-port-requires-v2-provider ()
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"Complete provider absence fails closed instead of selecting a legacy port."
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(let ((original-featurep (symbol-function 'featurep)))
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(cl-letf (((symbol-function 'featurep)
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(lambda (feature)
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(and (not (eq feature 'ebox-framework-spi-v2))
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(funcall original-featurep feature))))
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((symbol-function 'ebox-framework-spi-capabilities) nil))
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(should-error (etaf-render-port--bootstrap)
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:type 'etaf-spi-bootstrap-error))))
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(ert-deftest etaf-render-port-accepts-each-v2-capable-tp-manifest ()
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"Both transitional dual-capability and final v2-only providers are valid."
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(let ((provider (ebox-framework-spi-capabilities)))
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(dolist (protocol '(tp-transaction-protocol-v1+v2
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tp-transaction-protocol-v2))
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(cl-letf
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(((symbol-function 'ebox-framework-spi-capabilities)
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(lambda () provider))
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((symbol-function 'ebox-framework-spi-provider-tp-protocol)
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(lambda (_provider) protocol)))
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(should (eq (etaf-render-port-tp-protocol
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(etaf-render-port--bootstrap))
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protocol))))))
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(ert-deftest etaf-render-port-rejects-half-present-v2 ()
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"Feature-only and predicate-only providers fail instead of downgrading."
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(cl-letf (((symbol-function 'ebox-framework-spi-capabilities) nil))
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(should-error (etaf-render-port--bootstrap)
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:type 'etaf-spi-bootstrap-error))
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(let ((original-featurep (symbol-function 'featurep)))
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(cl-letf (((symbol-function 'featurep)
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(lambda (feature)
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(and (not (eq feature 'ebox-framework-spi-v2))
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(funcall original-featurep feature)))))
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(should-error (etaf-render-port--bootstrap)
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:type 'etaf-spi-bootstrap-error))))
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(ert-deftest etaf-render-port-rejects-broken-v2-provider ()
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"Throwing, non-record, and malformed providers fail closed."
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(cl-letf
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(((symbol-function 'ebox-framework-spi-capabilities)
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(lambda () (error "injected provider failure"))))
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(should-error (etaf-render-port--bootstrap)
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:type 'etaf-spi-bootstrap-error))
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(cl-letf
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(((symbol-function 'ebox-framework-spi-capabilities)
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(lambda () 'not-a-provider)))
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(should-error (etaf-render-port--bootstrap)
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:type 'etaf-spi-bootstrap-error))
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(let ((provider (ebox-framework-spi-capabilities)))
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(cl-letf
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(((symbol-function 'ebox-framework-spi-capabilities)
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(lambda () provider))
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((symbol-function 'ebox-framework-spi-provider-capabilities)
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(lambda (_provider) "not-a-capability-list")))
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(should-error (etaf-render-port--bootstrap)
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:type 'etaf-spi-bootstrap-error))))
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(ert-deftest etaf-render-port-rejects-incompatible-v2-provider ()
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"Version, required-capability, and TP protocol mismatches are incompatible."
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(let ((provider (ebox-framework-spi-capabilities)))
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(cl-letf
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(((symbol-function 'ebox-framework-spi-capabilities)
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(lambda () provider))
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((symbol-function 'ebox-framework-spi-provider-spi-version)
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(lambda (_provider) 99)))
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(should-error (etaf-render-port--bootstrap)
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:type 'etaf-spi-incompatible-error))
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(cl-letf
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(((symbol-function 'ebox-framework-spi-capabilities)
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(lambda () provider))
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((symbol-function 'ebox-framework-spi-provider-capabilities)
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(lambda (_provider)
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'(initial-paired-stage-rollback
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update-paired-stage-rollback
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same-object-legacy-report))))
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(should-error (etaf-render-port--bootstrap)
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:type 'etaf-spi-incompatible-error))
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(cl-letf
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(((symbol-function 'ebox-framework-spi-capabilities)
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(lambda () provider))
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((symbol-function 'ebox-framework-spi-provider-tp-protocol)
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(lambda (_provider) 'tp-transaction-protocol-v0)))
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(should-error (etaf-render-port--bootstrap)
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:type 'etaf-spi-incompatible-error))))
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(ert-deftest etaf-render-port-v2-initial-delegates-paired-rollback ()
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"The selected SPI operation owns stage failure and paired rollback."
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(let ((buffer (generate-new-buffer " *etaf-v2-paired-rollback*")) trace)
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(unwind-protect
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(cl-letf (((symbol-function 'ebox-framework-spi-initial)
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(lambda (_buffer _input stage rollback)
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(push 'render trace)
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(condition-case condition
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(funcall stage nil)
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(error
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(funcall rollback nil)
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(signal (car condition) (cdr condition)))))))
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(should-error
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(etaf-render-port-initial
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buffer 'input
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(lambda (_report)
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(push 'stage trace)
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(error "injected v2 initial failure"))
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(lambda (_report) (push 'rollback trace))))
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(should (equal (nreverse trace) '(render stage rollback))))
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(when (buffer-live-p buffer) (kill-buffer buffer)))))
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(ert-deftest etaf-render-port-v2-initial-restores-real-ebox-surface ()
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"A failed SPI stage removes Ebox authority and restores buffer content."
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(let ((buffer (generate-new-buffer " *etaf-v2-real-cleanup*"))
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(input (ebox-build '(box "committed")))
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(rollback-count 0)
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captured)
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(unwind-protect
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(progn
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(with-current-buffer buffer (insert "sentinel"))
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(condition-case condition
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(etaf-render-port-initial
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buffer input
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(lambda (_report)
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(error "injected real v2 stage failure"))
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(lambda (_report) (cl-incf rollback-count)))
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(error (setq captured condition)))
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(should (equal captured '(error "injected real v2 stage failure")))
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(should (= rollback-count 1))
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(should-not (ebox-surface-buffer-mounted-p buffer))
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(should-not (ebox-surface-buffer-observer buffer))
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(should (equal "sentinel"
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(with-current-buffer buffer (buffer-string)))))
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(when (and (buffer-live-p buffer)
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(ebox-surface-buffer-mounted-p buffer))
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(ebox-unmount-buffer buffer))
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(when (buffer-live-p buffer) (kill-buffer buffer)))))
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(ert-deftest etaf-render-port-v2-failure-restores-exact-editor-custody ()
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"SPI stage rollback preserves Emacs-owned editor identities and undo."
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(let ((buffer (generate-new-buffer " *etaf-v2-editor-custody*"))
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(input (ebox-build '(box "committed")))
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overlay left-marker right-marker snapshot captured)
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(unwind-protect
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(progn
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(with-current-buffer buffer
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(buffer-enable-undo)
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(insert (propertize "sentinel" 'face 'bold))
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(undo-boundary)
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(goto-char 4)
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(set-mark 2)
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(setq mark-active t)
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(setq overlay (make-overlay 2 6 buffer t t)
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left-marker (copy-marker 3 nil)
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right-marker (copy-marker 5 t))
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(overlay-put overlay 'etaf-test-property '(owned value))
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(narrow-to-region 2 7)
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(set-buffer-modified-p nil)
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(setq snapshot
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(list
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:contents
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(save-restriction
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(widen)
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(buffer-substring (point-min) (point-max)))
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:point (point)
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:mark-marker (mark-marker)
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:mark-position (mark t)
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:mark-insertion-type
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(marker-insertion-type (mark-marker))
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:mark-active mark-active
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:narrow-start (point-min)
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:narrow-end (point-max)
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:overlay-start (overlay-start overlay)
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:overlay-end (overlay-end overlay)
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:overlay-properties (overlay-properties overlay)
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:left-position (marker-position left-marker)
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:left-insertion-type (marker-insertion-type left-marker)
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:right-position (marker-position right-marker)
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:right-insertion-type (marker-insertion-type right-marker)
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:undo-list (copy-tree buffer-undo-list)
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:modified-p (buffer-modified-p))))
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(condition-case condition
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(etaf-render-port-initial
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buffer input
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(lambda (_report) (error "editor custody primary"))
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#'ignore)
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(error (setq captured condition)))
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(should (equal captured '(error "editor custody primary")))
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(should-not (ebox-surface-buffer-mounted-p buffer))
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(should-not (ebox-surface-buffer-observer buffer))
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(with-current-buffer buffer
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(should
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(equal (save-restriction
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(widen)
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(buffer-substring (point-min) (point-max)))
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(plist-get snapshot :contents)))
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(should (= (point) (plist-get snapshot :point)))
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(should (eq (mark-marker) (plist-get snapshot :mark-marker)))
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(should (= (mark t) (plist-get snapshot :mark-position)))
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(should
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(eq (marker-insertion-type (mark-marker))
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(plist-get snapshot :mark-insertion-type)))
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(should (eq mark-active (plist-get snapshot :mark-active)))
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(should (= (point-min) (plist-get snapshot :narrow-start)))
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(should (= (point-max) (plist-get snapshot :narrow-end)))
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(should (overlayp overlay))
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(should (eq (overlay-buffer overlay) buffer))
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(should (= (overlay-start overlay)
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(plist-get snapshot :overlay-start)))
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(should (= (overlay-end overlay)
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(plist-get snapshot :overlay-end)))
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(should (equal (overlay-properties overlay)
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(plist-get snapshot :overlay-properties)))
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(should (eq (marker-buffer left-marker) buffer))
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(should (= (marker-position left-marker)
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(plist-get snapshot :left-position)))
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(should
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(eq (marker-insertion-type left-marker)
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(plist-get snapshot :left-insertion-type)))
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(should (eq (marker-buffer right-marker) buffer))
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(should (= (marker-position right-marker)
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(plist-get snapshot :right-position)))
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(should
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(eq (marker-insertion-type right-marker)
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(plist-get snapshot :right-insertion-type)))
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(should (equal buffer-undo-list (plist-get snapshot :undo-list)))
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(should (eq (buffer-modified-p)
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(plist-get snapshot :modified-p)))))
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(when (overlayp overlay) (delete-overlay overlay))
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(when (markerp left-marker) (set-marker left-marker nil))
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(when (markerp right-marker) (set-marker right-marker nil))
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(when (and (buffer-live-p buffer)
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(ebox-surface-buffer-mounted-p buffer))
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(ebox-unmount-buffer buffer))
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(when (buffer-live-p buffer) (kill-buffer buffer)))))
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(ert-deftest etaf-render-port-v2-nonlocal-exit-runs-exact-cleanup ()
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"A SPI stage throw cannot escape with mounted or editor state retained."
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(let ((buffer (generate-new-buffer " *etaf-v2-nonlocal-cleanup*"))
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(input (ebox-build '(box "committed")))
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(rollback-count 0))
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(unwind-protect
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(progn
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(with-current-buffer buffer (insert "before"))
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(should
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(eq
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(catch 'etaf-v2-test-escape
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(etaf-render-port-initial
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buffer input
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(lambda (_report)
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(throw 'etaf-v2-test-escape 'escaped))
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(lambda (_report) (cl-incf rollback-count)))
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'not-escaped)
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'escaped))
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(should (= rollback-count 1))
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(should-not (ebox-surface-buffer-mounted-p buffer))
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(should-not (ebox-surface-buffer-observer buffer))
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(should (equal "before"
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(with-current-buffer buffer (buffer-string)))))
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(when (and (buffer-live-p buffer)
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(ebox-surface-buffer-mounted-p buffer))
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(ebox-unmount-buffer buffer))
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(when (buffer-live-p buffer) (kill-buffer buffer)))))
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(ert-deftest etaf-render-port-v2-precondition-keeps-existing-mount ()
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"Rejecting an already mounted target must not clean up foreign authority."
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(let ((buffer (generate-new-buffer " *etaf-v1-existing-mount*")))
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(unwind-protect
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(progn
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(ebox-render-to-buffer buffer (ebox-build '(box "existing")))
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(let ((revision (ebox-surface-buffer-revision buffer)))
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(should-error
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(etaf-render-port-initial
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buffer (ebox-build '(box "replacement")) #'ignore #'ignore)
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:type 'error)
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(should (ebox-surface-buffer-mounted-p buffer))
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(should (= revision (ebox-surface-buffer-revision buffer)))
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(should (equal "existing"
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(with-current-buffer buffer (buffer-string))))))
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(when (and (buffer-live-p buffer)
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(ebox-surface-buffer-mounted-p buffer))
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(ebox-unmount-buffer buffer))
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(when (buffer-live-p buffer) (kill-buffer buffer)))))
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(ert-deftest etaf-render-port-v2-rollback-throw-cannot-stop-cleanup-tail ()
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"A framework rollback throw propagates only after SPI cleanup completes."
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(let ((buffer (generate-new-buffer " *etaf-v2-rollback-throw*"))
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(input (ebox-build '(box "committed"))))
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(unwind-protect
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(progn
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(with-current-buffer buffer (insert "before"))
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(should
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(eq
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(catch 'etaf-v2-rollback-escape
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(etaf-render-port-initial
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buffer input
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(lambda (_report) (error "primary before rollback throw"))
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(lambda (_report)
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(throw 'etaf-v2-rollback-escape 'rollback-escaped)))
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'not-escaped)
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'rollback-escaped))
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(should-not (ebox-surface-buffer-mounted-p buffer))
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(should-not (ebox-surface-buffer-observer buffer))
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(should (equal "before"
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(with-current-buffer buffer (buffer-string)))))
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(when (and (buffer-live-p buffer)
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(ebox-surface-buffer-mounted-p buffer))
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(ebox-unmount-buffer buffer))
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(when (buffer-live-p buffer) (kill-buffer buffer)))))
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(ert-deftest etaf-render-port-v2-cleanup-fault-keeps-primary-and-continues ()
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"A secondary rollback fault is contained while Ebox cleanup continues."
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(let ((buffer (generate-new-buffer " *etaf-v2-cleanup-fault*"))
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(input (ebox-build '(box "committed")))
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captured)
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(unwind-protect
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(progn
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(with-current-buffer buffer (insert "before"))
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(condition-case condition
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(etaf-render-port-initial
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buffer input
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(lambda (_report) (error "primary stage failure"))
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(lambda (_report) (error "secondary rollback failure")))
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(error (setq captured condition)))
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(should (equal captured '(error "primary stage failure")))
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(should-not (ebox-surface-buffer-mounted-p buffer))
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(should (equal "before"
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(with-current-buffer buffer (buffer-string)))))
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(when (and (buffer-live-p buffer)
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(ebox-surface-buffer-mounted-p buffer))
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(ebox-unmount-buffer buffer))
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(when (buffer-live-p buffer) (kill-buffer buffer)))))
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(ert-deftest etaf-render-port-revision-fails-closed-for-mounted-surface ()
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"Revision is zero only without a mount; mounted lookup errors stay visible."
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(let ((buffer (generate-new-buffer " *etaf-revision-contract*")))
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(unwind-protect
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(progn
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(should (zerop (etaf-render-port-revision buffer)))
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(ebox-render-to-buffer buffer (ebox-build '(box "mounted")))
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(should (> (etaf-render-port-revision buffer) 0))
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(cl-letf (((symbol-function 'ebox-surface-buffer-revision)
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(lambda (_buffer) (error "injected report failure"))))
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(should-error (etaf-render-port-revision buffer) :type 'error))
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(cl-letf (((symbol-function 'ebox-surface-buffer-revision)
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(lambda (_buffer) 0)))
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(should-error (etaf-render-port-revision buffer) :type 'error)))
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(when (and (buffer-live-p buffer)
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(ebox-surface-buffer-mounted-p buffer))
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(ebox-unmount-buffer buffer))
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(when (buffer-live-p buffer) (kill-buffer buffer)))))
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(ert-deftest etaf-render-port-v2-preserves-provider-report-identity ()
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"Initial and update return the exact report seen by framework staging."
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(let ((buffer (generate-new-buffer " *etaf-v2-report-identity*"))
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initial-stage-report update-stage-report)
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(unwind-protect
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(let ((initial-report
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(etaf-render-port-initial
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buffer (ebox-build '(box "one"))
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(lambda (report) (setq initial-stage-report report))
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#'ignore)))
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(should (eq initial-report initial-stage-report))
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(let ((update-report
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(etaf-render-port-update
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buffer (ebox-build '(box "two"))
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(lambda (report) (setq update-stage-report report))
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#'ignore)))
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(should (eq update-report update-stage-report))
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(should (= (etaf-render-port-revision buffer)
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(plist-get update-report :surface-revision)))))
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(when (and (buffer-live-p buffer)
|
|
(ebox-surface-buffer-mounted-p buffer))
|
|
(ebox-unmount-buffer buffer))
|
|
(when (buffer-live-p buffer) (kill-buffer buffer)))))
|
|
|
|
(ert-deftest etaf-render-port-is-the-only-protocol-probe-owner ()
|
|
"No downstream ETAF module probes Ebox framework SPI protocol state."
|
|
(dolist (file (directory-files etaf-render-port-test--root t "\\.el\\'"))
|
|
(unless (string= (file-name-nondirectory file) "etaf-render-port.el")
|
|
(with-temp-buffer
|
|
(insert-file-contents file)
|
|
(let ((source (buffer-string)))
|
|
(should-not (string-match-p "ebox-framework-spi" source))
|
|
(should-not (string-match-p "ebox-framework-spi-v2" source)))))))
|
|
|
|
(ert-deftest etaf-render-port-owns-runtime-update-routing ()
|
|
"Runtime updates use the selected port instead of calling Ebox directly."
|
|
(with-temp-buffer
|
|
(insert-file-contents
|
|
(expand-file-name "etaf-runtime.el" etaf-render-port-test--root))
|
|
(let ((source (buffer-string)))
|
|
(should (string-match-p "(etaf-render-port-update" source))
|
|
(should-not (string-match-p "(ebox-commit" source)))))
|
|
|
|
(ert-deftest etaf-render-port-owns-all-live-publication-routing ()
|
|
"No ETAF module except the selected-port owner publishes directly to Ebox."
|
|
(dolist (file (directory-files etaf-render-port-test--root t "\\.el\\'"))
|
|
(unless (string= (file-name-nondirectory file) "etaf-render-port.el")
|
|
(with-temp-buffer
|
|
(insert-file-contents file)
|
|
(let ((source (buffer-string)))
|
|
(dolist (call '("(ebox-render-to-buffer"
|
|
"(ebox-commit"
|
|
"(ebox-surface-"))
|
|
(should-not (string-match-p (regexp-quote call) source))))))))
|
|
|
|
(ert-deftest etaf-render-port-production-has-no-v1-render-route ()
|
|
"Production ETAF contains no retired render-port policy or v1 helper."
|
|
(dolist (file (directory-files etaf-render-port-test--root t "\\.el\\'"))
|
|
(with-temp-buffer
|
|
(insert-file-contents file)
|
|
(let ((source (buffer-string)))
|
|
(should-not (string-match-p "etaf-render-port-selection-policy" source))
|
|
(should-not (string-match-p "etaf-render-port--v1" source))))))
|
|
|
|
(ert-deftest etaf-render-port-routes-standalone-renderer-mount ()
|
|
"The no-Runtime compatibility mount uses the immutable selected port."
|
|
(require 'etaf-renderer)
|
|
(let ((buffer (generate-new-buffer " *etaf-standalone-port-mount*"))
|
|
seen-input seen-viewport)
|
|
(unwind-protect
|
|
(cl-letf (((symbol-function 'etaf-runtime-mount) nil)
|
|
((symbol-function 'etaf-render-port-initial)
|
|
(lambda (target input framework-stage framework-rollback
|
|
&optional _observer)
|
|
(setq seen-input input
|
|
seen-viewport
|
|
(list ebox-viewport-width ebox-viewport-height))
|
|
(funcall framework-stage nil)
|
|
(ignore framework-rollback)
|
|
(list :status 'success :buffer target))))
|
|
(should
|
|
(eq (etaf-mount
|
|
buffer (etaf-view (text "standalone"))
|
|
'(:viewport-width 91 :viewport-height 17))
|
|
buffer))
|
|
(should (ebox-canonical-input-p seen-input))
|
|
(should (equal seen-viewport '(91 17))))
|
|
(when (and (buffer-live-p buffer)
|
|
(ebox-surface-buffer-mounted-p buffer))
|
|
(ebox-unmount-buffer buffer))
|
|
(when (buffer-live-p buffer) (kill-buffer buffer)))))
|
|
|
|
(ert-deftest etaf-render-port-standalone-render-failure-creates-no-buffer ()
|
|
"Pure lowering must fail before standalone mount allocates its target buffer."
|
|
(require 'etaf-renderer)
|
|
(let ((name " *etaf-standalone-render-failure*"))
|
|
(when-let* ((buffer (get-buffer name))) (kill-buffer buffer))
|
|
(cl-letf (((symbol-function 'etaf-runtime-mount) nil))
|
|
(should-error (etaf-mount name 'invalid-etaf-view)
|
|
:type 'etaf-renderer-error))
|
|
(should-not (get-buffer name))))
|
|
|
|
(ert-deftest etaf-render-port-selected-port-is-process-stable ()
|
|
"Every downstream read returns the one bootstrap-selected port identity."
|
|
(let ((selected (etaf-render-port-selected)))
|
|
(should (eq selected (etaf-render-port-selected)))
|
|
(should (eq (etaf-render-port-route selected) 'v2))))
|
|
|
|
(provide 'etaf-render-port-tests)
|
|
|
|
;;; etaf-render-port-tests.el ends here
|