Use .zeek file suffix in unit tests

testing/btest/scripts/base/frameworks/input/predicate-stream.zeek

@@ -0,0 +1,76 @@
+# @TEST-EXEC: btest-bg-run bro bro -b %INPUT
+# @TEST-EXEC: btest-bg-wait 10
+# @TEST-EXEC: btest-diff out
+#
+# only difference from predicate.bro is, that this one uses a stream source.
+# the reason is, that the code-paths are quite different, because then the
+# ascii reader uses the put and not the sendevent interface
+
+@TEST-START-FILE input.log
+#separator \x09
+#path	ssh
+#fields	i	b	
+#types	int	bool
+1	T
+2	T
+3	F
+4	F
+5	F
+6	F
+7	T
+@TEST-END-FILE
+
+redef exit_only_after_terminate = T;
+
+global outfile: file;
+
+redef InputAscii::empty_field = "EMPTY";
+
+module A;
+
+type Idx: record {
+	i: int;
+};
+
+type Val: record {
+	b: bool;
+};
+
+global servers: table[int] of bool = table();
+global ct: int;
+
+event line(description: Input::TableDescription, tpe: Input::Event, left: Idx, right: bool)
+	{
+	ct = ct + 1;
+	if ( ct < 3 )
+		return;
+
+	if ( 1 in servers )
+		print outfile, "VALID";
+	if ( 2 in servers )
+		print outfile, "VALID";
+	if ( !(3 in servers) )
+		print outfile, "VALID";
+	if ( !(4 in servers) )
+		print outfile, "VALID";
+	if ( !(5 in servers) )
+		print outfile, "VALID";
+	if ( !(6 in servers) )
+		print outfile, "VALID";
+	if ( 7 in servers )
+		print outfile, "VALID";
+	Input::remove("input");
+	close(outfile);
+	terminate();
+	}
+
+event bro_init()
+	{
+    outfile = open("../out");
+	ct = 0;
+	# first read in the old stuff into the table...
+	Input::add_table([$source="../input.log", $mode=Input::STREAM, $name="input", $idx=Idx, $val=Val, $destination=servers, $want_record=F, $ev=line,
+				$pred(typ: Input::Event, left: Idx, right: bool) = { return right; }
+				]);
+	}
+