Add check_active_task function

generatetask

@@ -10,3 +10,11 @@ taskl() {
 		"$@" \
 		list
 }
+
+check_active_task() {
+	taskcount="$(taskl | wc -l)"
+
+	if test "$taskcount" -eq 0; then
+		return 1
+	fi
+}

tests/test_generatetask.sh

@@ -21,3 +21,30 @@ test_taskl_runs_task_with_custom_parameters() {
 
 	assert_equals "$expected" "$result"
 }
+
+test_check_active_task_returns_1_when_no_active_task() {
+	fake task 'printf ""'
+	expected=1
+
+	check_active_task
+
+	assert_equals "$expected" "$?"
+}
+
+test_check_active_task_returns_0_when_one_active_task() {
+	fake taskl 'printf "28\n"'
+	expected=0
+
+	check_active_task
+
+	assert_equals "$expected" "$?"
+}
+
+test_check_active_task_returns_0_when_multiple_active_tasks() {
+	fake taskl 'printf "28\n29\n30\n"'
+	expected=0
+
+	check_active_task
+
+	assert_equals "$expected" "$?"
+}