Adding upstream version 3.1.0+dfsg.

Signed-off-by: Daniel Baumann <daniel@debian.org>

tests/yanglint/interactive/ly.tcl

@@ -0,0 +1,81 @@
+# @brief The main source of functions and variables for testing yanglint in the interactive mode.
+
+# For testing yanglint.
+source [expr {[info exists ::env(TESTS_DIR)] ? "$env(TESTS_DIR)/common.tcl" : "../common.tcl"}]
+# For testing any interactive tool.
+source "$::env(TESTS_DIR)/../tool_i.tcl"
+
+# The script continues by defining variables and functions specific to the interactive yanglint tool.
+
+# set the timeout to 5 seconds
+set timeout 5
+# prompt of yanglint
+set prompt "> "
+# turn off dialog between expect and yanglint
+log_user 0
+# setting some large terminal width
+stty columns 720
+
+# default setup for every unit test
+variable ly_setup {
+    spawn $TUT
+    ly_skip_warnings
+    # Searchpath is set, so modules can be loaded via the 'load' command.
+    ly_cmd "searchpath $::env(YANG_MODULES_DIR)"
+}
+
+# default cleanup for every unit test
+variable ly_cleanup {
+    ly_exit
+}
+
+# Skip no dir and/or no history warnings and prompt.
+proc ly_skip_warnings {} {
+    global prompt
+    expect -re "(YANGLINT.*)*$prompt" {}
+}
+
+# Send command 'cmd' to the process, expect error header and then check output string by 'pattern'.
+# Parameter cmd is a string of arguments.
+# Parameter pattern is a regex. It must not contain a prompt.
+proc ly_cmd_err {cmd pattern} {
+    global prompt
+
+    send -- "${cmd}\r"
+    expect -- "${cmd}\r\n"
+
+    expect {
+        -re "YANGLINT\\\[E\\\]: .*${pattern}.*\r\n${prompt}$" {}
+        -re "libyang\\\[\[0-9]+\\\]: .*${pattern}.*\r\n${prompt}$" {}
+        -re "\r\n${prompt}$" {
+            error "unexpected output:\n$expect_out(buffer)"
+        }
+    }
+}
+
+# Send command 'cmd' to the process, expect warning header and then check output string by 'pattern'.
+# Parameter cmd is a string of arguments.
+# Parameter pattern is a regex. It must not contain a prompt.
+proc ly_cmd_wrn {cmd pattern} {
+    ly_cmd_header $cmd "YANGLINT\\\[W\\\]:" $pattern
+}
+
+# Send 'exit' and wait for eof.
+proc ly_exit {} {
+    send "exit\r"
+    expect eof
+}
+
+# Check if yanglint is configured as DEBUG.
+# Return 1 on success.
+proc yanglint_debug {} {
+    global TUT
+    # Call non-interactive yanglint with --help.
+    set output [exec -- $TUT "-h"]
+    # Find option --debug.
+    if { [regexp -- "--debug=GROUPS" $output] } {
+        return 1
+    } else {
+        return 0
+    }
+}