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authorVincent Ambo <mail@tazj.in>2020-07-15T07·20+0100
committerVincent Ambo <mail@tazj.in>2020-07-15T07·20+0100
commit7f19d641647ac4ef313ed88d6b5c140983ce5436 (patch)
tree31b66c81465293da5c093c5dde3e419758c0d6cc /test/vector/issue-46.cpp
Squashed 'third_party/immer/' content from commit ad3e3556d
git-subtree-dir: third_party/immer
git-subtree-split: ad3e3556d38bb75966dd24c61a774970a7c7957e
Diffstat (limited to 'test/vector/issue-46.cpp')
-rw-r--r--test/vector/issue-46.cpp39
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diff --git a/test/vector/issue-46.cpp b/test/vector/issue-46.cpp
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+//
+// immer: immutable data structures for C++
+// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
+//
+// This software is distributed under the Boost Software License, Version 1.0.
+// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
+//
+
+// Thanks Guiguiprim for reporting this issue
+// https://github.com/arximboldi/immer/issues/46
+
+#include <immer/flex_vector.hpp>
+#include <immer/vector.hpp>
+#include <immer/vector_transient.hpp>
+
+#include <catch.hpp>
+
+TEST_CASE("operator==() may return bad result")
+{
+    using bool_vec = immer::flex_vector<bool>;
+
+    immer::vector<bool_vec> v0;
+    auto tv = v0.transient();
+    tv.push_back(bool_vec(9, false));
+    tv.push_back(bool_vec(10, false));
+    tv.push_back(bool_vec(8, false));
+    tv.push_back(bool_vec(6, false));
+    tv.push_back(bool_vec(9, false));
+    tv.push_back(bool_vec(7, false));
+    tv.push_back(bool_vec(8, false));
+    tv.push_back(bool_vec(9, false));
+    tv.push_back(bool_vec(10, false));
+    v0 = tv.persistent();
+
+    auto v1 = v0.update(1, [](bool_vec vec) { return vec.set(8, true); });
+
+    CHECK(v0[1] != v1[1]);
+    CHECK(v0 != v1);
+}