(*
 * Copyright (c) 2016 - present Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *)

open !Utils

module F = Format

let tests =
  let open OUnit2 in

  let empty_string_test =
    let empty_string_test_ _ =
      assert_raises
        (Failure "Empty stack trace")
        (fun () -> Stacktrace.of_string "") in
    "empty_string">::empty_string_test_ in

  let empty_trace_test =
    let empty_stack_trace_s = "Exception in thread \"main\" java.lang.NullPointerException" in
    let trace = Stacktrace.of_string empty_stack_trace_s in
    let empty_trace_test_ _ =
      assert_equal trace.frames [] in
    "empty_trace">::empty_trace_test_ in

  let one_frame_trace_test =
    let one_frame_trace_test_s =
      "Exception in thread \"main\" java.lang.NullPointerException\n" ^
      "\tat endtoend.java.checkers.crashcontext.MinimalCrashTest.main" ^
      "(MinimalCrashTest.java:16)" in
    let trace = Stacktrace.of_string
        one_frame_trace_test_s in
    let expected = Stacktrace.make
        "java.lang.NullPointerException"
        [Stacktrace.make_frame
           "endtoend.java.checkers.crashcontext.MinimalCrashTest"
           "main"
           "MinimalCrashTest.java"
           16] in
    let one_frame_trace_test_ _ =
      assert_equal trace expected in
    "one_frame_trace">::one_frame_trace_test_ in

  let multi_frame_trace_test =
    let multi_frame_trace_test_s =
      "Exception in thread \"main\" java.lang.NullPointerException\n\t" ^
      "at endtoend.java.checkers.crashcontext.MultiStackFrameCrashTest.bar" ^
      "(MultiStackFrameCrashTest.java:16)\n" ^
      "\tat endtoend.java.checkers.crashcontext.MultiStackFrameCrashTest.foo" ^
      "(MultiStackFrameCrashTest.java:20)\n" ^
      "\tat endtoend.java.checkers.crashcontext.MultiStackFrameCrashTest.main" ^
      "(MultiStackFrameCrashTest.java:24)" in
    let trace = Stacktrace.of_string
        multi_frame_trace_test_s in
    let class_name =
      "endtoend.java.checkers.crashcontext.MultiStackFrameCrashTest" in
    let file_name = "MultiStackFrameCrashTest.java" in
    let expected = Stacktrace.make
        "java.lang.NullPointerException"
        [Stacktrace.make_frame class_name "bar" file_name 16;
         Stacktrace.make_frame class_name "foo" file_name 20;
         Stacktrace.make_frame class_name "main" file_name 24] in
    let multi_frame_trace_test_ _ =
      assert_equal trace expected in
    "multi_frame_trace_test">::multi_frame_trace_test_ in

  "all_tests_suite">:::[empty_string_test; empty_trace_test;
                        one_frame_trace_test; multi_frame_trace_test]