Introduce a quiet mode

Author: pgrange

README.adoc

@@ -53,6 +53,11 @@ _(by the way, the documentation you are reading is itself tested with bash-unit)
   specify an alternative output format.
   The only supported value is *tap*.
 
+*-q*::
+  quiet mode.
+  Will only output the status of each test with no further
+  information even in case of failure.
+
 ifndef::backend-manpage[]
 
 == How to install *bash_unit*

bash_unit

@@ -41,7 +41,8 @@ fail() {
   local stderr=${3:-}
 
   # shellcheck disable=2154
-  notify_test_failed "$__bash_unit_current_test__" "$message"
+  notify_test_failed "$__bash_unit_current_test__"
+  notify_message "$message"
   [[ -n "$stdout" ]] && [ -s "$stdout" ] && notify_stdout < "$stdout"
   [[ -n "$stderr" ]] && [ -s "$stderr" ] && notify_stderr < "$stderr"
 
@@ -372,12 +373,15 @@ text_format() {
     echo
   }
   notify_test_failed() {
-    local message="$2"
     echo -n "FAILURE" | pretty_failure
     echo
+  }
+  notify_message() {
+    local message="$1"
     # shellcheck disable=SC2059
     [[ -z "$message" ]] || printf -- "$message\n"
   }
+
   notify_stdout() {
     "$SED" 's:^:out> :' | color "$GREEN"
   }
@@ -424,9 +428,11 @@ tap_format() {
   }
   notify_test_failed() {
     local test="$1"
-    local message="$2"
     echo -n "not ok" | pretty_failure -
     echo "$test" | color "$BLUE"
+  }
+  notify_message() {
+    local message="$1"
     [[ -z "$message" ]] || printf -- "%b\n" "$message" | "$SED" -u -e 's/^/# /'
   }
   notify_stdout() {
@@ -446,6 +452,21 @@ tap_format() {
   }
 }
 
+quiet_mode() {
+  notify_message() {
+    :
+  }
+  notify_stdout() {
+    :
+  }
+  notify_stderr() {
+    :
+  }
+  notify_stack() {
+    :
+  }
+}
+
 skip_if() {
   local condition="$1"
   local pattern="$2"
@@ -457,12 +478,13 @@ skip_if() {
 }
 
 output_format=text
+verbosity=normal
 test_pattern=""
 test_pattern_separator=""
 skip_pattern=""
 skip_pattern_separator=""
 randomize=0
-while getopts "vp:s:f:r" option
+while getopts "vp:s:f:rq" option
 do
   case "$option" in
     p)
@@ -483,6 +505,9 @@ do
       echo "bash_unit $VERSION"
       exit
       ;;
+    q)
+      verbosity=quiet
+      ;;
     ?)
       usage
       ;;
@@ -508,6 +533,11 @@ case "$output_format" in
     ;;
 esac
 
+if [[ "$verbosity" == quiet ]]
+then
+  quiet_mode
+fi
+
 #run tests received as parameters
 failure=0
 for test_file in "$@"

tests/test_cli.sh

@@ -114,6 +114,24 @@ Overall result: SUCCESS" \
   "$bash_unit_output"
 }
 
+test_can_have_a_quiet_output() {
+  bash_unit_output=$($BASH_UNIT -q \
+    <(echo 'test_one() { echo -n ; }
+            test_two() { fail "this test fails" ; }
+            test_three() { fail ; }
+            ') \
+    | "$SED" -e 's:/dev/fd/[0-9]*:test_file:' \
+  )
+
+  assert_equals "\
+Running tests in test_file
+	Running test_one ... SUCCESS
+	Running test_three ... FAILURE
+	Running test_two ... FAILURE
+Overall result: FAILURE" \
+  "$bash_unit_output"
+}
+
 test_fails_when_test_file_does_not_exist() {
   assert_fails "$BASH_UNIT /not_exist/not_exist"
 }

tests/test_core.sh

@@ -313,7 +313,8 @@ unmute_logs() {
   notify_suite_starting() { echo "Running tests in $1" ; }
   notify_test_starting () { echo -e -n "\tRunning $1... " ; }
   notify_test_succeeded() { echo "SUCCESS" ; }
-  notify_test_failed   () { echo "FAILURE" ; echo "$2" ; }
+  notify_test_failed   () { echo "FAILURE" ; }
+  notify_message       () { echo "$1" ; }
 }
 
 unmute_stack() {
@@ -333,6 +334,7 @@ mute() {
   notify_test_starting () { echo -n ; }
   notify_test_succeeded() { echo -n ; }
   notify_test_failed   () { echo -n ; }
+  notify_message       () { echo -n ; }
   notify_stack         () { echo -n ; }
   notify_stdout        () { echo -n ; }
   notify_stderr        () { echo -n ; }