[Quilt-dev] [patch] Make it possible to test the bash completion script

[martin . quinson]

- Add a helper script that runs a completion and checks that it
  reaches the expected outcome
- Add an example of test (in our usual test suite) using it
- Caveat: you probably need to chmod +x test/run-test-completion.in

This closes #41688.

---
 Makefile.in                 |    6 +++++-
 test/completion.test        |   10 ++++++++++
 test/run-test-completion.in |   42 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 57 insertions(+), 1 deletion(-)

Index: b/test/completion.test
===================================================================
--- /dev/null
+++ b/test/completion.test
@@ -0,0 +1,10 @@
+$ ../run-test-completion add quilt ad
+>~ PASS:.*
+
+$ ../run-test-completion "add annotate applied" quilt a
+>~ PASS:.*
+
+$ ../run-test-completion "" quilt toppp
+>~ PASS:.*
+
+
Index: b/test/run-test-completion.in
===================================================================
--- /dev/null
+++ b/test/run-test-completion.in
@@ -0,0 +1,42 @@
+#! @BASH@
+
+# Little test runner for the bash completion
+
+# Usage:   run-test-completion "expected output" the command line to complete
+#
+# $ run-test-completion "add" quilt ad
+# PASS: quilt ad -> add
+# $ run-test-completion "add" quilt a
+# FAIL: quilt a -> add annotate applied  !=  add
+# $ run-test-completion "" quilt toppp
+# PASS: quilt toppp -> 
+
+
+#  This script is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License version 2 as
+#  published by the Free Software Foundation.
+#
+#  See the COPYING and AUTHORS files for more details.
+
+
+set -e
+source ../../bash_completion
+
+expected_output=$1
+shift
+
+declare -a COMP_WORDS=()
+for arg in "$@" ; do
+  address@hidden
+done
address@hidden
+
+set +e # _quilt_completion fails when completing something with no existing 
completion, such as "quilt topppp"
+_quilt_completion -o filenames quilt
+observed_output="${COMPREPLY[*]}"
+
+if [ "$expected_output" = "$observed_output" ] ; then
+  echo "PASS: $@ -> $expected_output"
+else
+  echo "FAIL: $@ -> $observed_output  !=  $expected_output"
+fi
Index: b/Makefile.in
===================================================================
--- a/Makefile.in
+++ b/Makefile.in
@@ -79,6 +79,9 @@
 SRC +=         $(QUILT_SRC:%=quilt/%)
 DIRT +=                $(QUILT_IN:%=quilt/%)
 
+SRC +=         test/run-test-completion.in
+DIRT +=                test/run-test-completion
+
 SCRIPTS_IN :=  patchfns inspect dependency-graph edmail        \
                remove-trailing-ws backup-files
 
@@ -148,7 +151,8 @@
 
 scripts : $(BIN:%=bin/%) $(QUILT:%=quilt/%)                            \
          $(SCRIPTS:%=quilt/scripts/%)                                  \
-         $(if $(PATCH_WRAPPER),bin/patch-wrapper)
+         $(if $(PATCH_WRAPPER),bin/patch-wrapper)                      \
+         test/run-test-completion
 
 dist : clean $(PACKAGE)-$(VERSION).tar.gz