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![Leaf Petersen](/assets/img/avatar_default.png)
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
92 lines
2.7 KiB
Dart
92 lines
2.7 KiB
Dart
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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//
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// Dart test program for testing dart:ffi dynamic library loading.
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//
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// SharedObjects=ffi_test_dynamic_library ffi_test_functions
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// @dart = 2.9
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import 'dart:io';
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import 'dart:ffi';
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import 'package:expect/expect.dart';
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import 'dylib_utils.dart';
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void main() {
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testOpen();
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testOpenError();
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testLookup();
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testLookupError();
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testToString();
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testEquality();
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testHandle();
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}
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void testOpen() {
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DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
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}
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void testOpenError() {
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Expect.throws(
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() => dlopenPlatformSpecific("doesnotexistforsurelibrary123409876"));
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}
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typedef NativeDoubleUnOp = Double Function(Double);
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typedef DoubleUnOp = double Function(double);
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void testLookup() {
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DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
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var timesFour = l.lookupFunction<NativeDoubleUnOp, DoubleUnOp>("timesFour");
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Expect.approxEquals(12.0, timesFour(3));
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if (Platform.isMacOS ||
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Platform.isIOS ||
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Platform.isAndroid ||
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Platform.isLinux) {
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// Lookup a symbol from 'libc' since it's loaded with global visibility.
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DynamicLibrary p = DynamicLibrary.process();
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Expect.isTrue(p.lookup<Void>("strcmp") != nullptr);
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} else {
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Expect.throws<UnsupportedError>(() => DynamicLibrary.process());
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}
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DynamicLibrary e = DynamicLibrary.executable();
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Expect.isTrue(e.lookup("Dart_Invoke") != nullptr);
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}
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void testLookupError() {
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DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
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Expect.throws(() => l.lookupFunction<NativeDoubleUnOp, DoubleUnOp>(
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"functionnamethatdoesnotexistforsure749237593845"));
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}
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void testToString() {
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DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
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Expect.stringEquals(
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"DynamicLibrary: handle=0x", l.toString().substring(0, 25));
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}
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void testEquality() {
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DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
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DynamicLibrary l2 = dlopenPlatformSpecific("ffi_test_dynamic_library");
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Expect.equals(l, l2);
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Expect.equals(l.hashCode, l2.hashCode);
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DynamicLibrary l3 = dlopenPlatformSpecific("ffi_test_functions");
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Expect.notEquals(l, l3);
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}
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void testHandle() {
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DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
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DynamicLibrary l2 = dlopenPlatformSpecific("ffi_test_dynamic_library");
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Pointer<Void> h = l.handle;
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Pointer<Void> h2 = l2.handle;
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Expect.equals(h, h2);
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DynamicLibrary l3 = dlopenPlatformSpecific("ffi_test_functions");
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Pointer<Void> h3 = l3.handle;
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Expect.notEquals(h, h3);
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}
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