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// Copyright (c) 2023 Cloudflare, Inc.
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// Licensed under the Apache 2.0 license found in the LICENSE file or at:
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//     https://opensource.org/licenses/Apache-2.0
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#include "string-buffer.h"
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#include <kj/test.h>
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namespace workerd {
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namespace {
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KJ_TEST("append StringPtr") {
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  StringBuffer<100> buffer(100);
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  buffer.append("abcdef"_kj);
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  KJ_EXPECT("abcdef"_kj == buffer.toString());
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}
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KJ_TEST("append String") {
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  StringBuffer<100> buffer(100);
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  auto str = kj::heapString("abc"_kj);
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  buffer.append(str);
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  KJ_EXPECT("abc"_kj == buffer.toString());
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}
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KJ_TEST("append char array") {
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  StringBuffer<100> buffer(100);
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  auto str = kj::heapString("abc");
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  buffer.append(str);
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  KJ_EXPECT("abc"_kj == buffer.toString());
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}
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KJ_TEST("overflow") {
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  StringBuffer<10> buffer(11);
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  for (auto i = 0; i < 100; i++) {
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    // 3 character will test all sorts of boundary conditions
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    // with 11-bytes heap chunks.
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    buffer.append("abc");
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  }
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  KJ_EXPECT(buffer.toString().size() == 300);
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  KJ_EXPECT(
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      "abcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabc"
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      "abcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabc"
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      "abcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabc"
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      "abcabcabcabcabcabcabc"_kj == buffer.toString());
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}
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}  // namespace
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}  // namespace workerd