86 lines
3.7 KiB
C
86 lines
3.7 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/testlib/testlib.h"
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#include "tool/build/lib/iovs.h"
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TEST(iovs, testEmpty) {
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struct Iovs iv;
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InitIovs(&iv);
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EXPECT_EQ(0, iv.i);
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EXPECT_GE(iv.n, iv.i);
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FreeIovs(&iv);
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}
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TEST(iovs, testAppendEmptyString_wontCreateEmptyEntries) {
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struct Iovs iv;
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InitIovs(&iv);
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EXPECT_NE(-1, AppendIovs(&iv, "", 0));
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EXPECT_NE(-1, AppendIovs(&iv, NULL, 0));
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EXPECT_EQ(0, iv.i);
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EXPECT_GE(iv.n, iv.i);
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FreeIovs(&iv);
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}
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TEST(iovs, testAppendContiguousVectors_coalescesAdjacentEntries) {
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struct Iovs iv;
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char buf[8], *b = buf;
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InitIovs(&iv);
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EXPECT_NE(-1, AppendIovs(&iv, b + 0, 4));
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EXPECT_NE(-1, AppendIovs(&iv, b + 4, 4));
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EXPECT_EQ(1, iv.i);
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EXPECT_GE(iv.n, iv.i);
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EXPECT_EQ(8, iv.p[0].iov_len);
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EXPECT_EQ(b, iv.p[0].iov_base);
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FreeIovs(&iv);
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}
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TEST(iovs, testAppendNoncontiguousVectors_growsMemoryAndPreservesOrdering) {
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struct Iovs iv;
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char buf[8], *b = buf;
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InitIovs(&iv);
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EXPECT_NE(-1, AppendIovs(&iv, b + 0, 1));
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EXPECT_NE(-1, AppendIovs(&iv, b + 2, 1));
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EXPECT_NE(-1, AppendIovs(&iv, b + 4, 1));
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EXPECT_NE(-1, AppendIovs(&iv, b + 6, 1));
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EXPECT_NE(-1, AppendIovs(&iv, b + 1, 1));
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EXPECT_NE(-1, AppendIovs(&iv, b + 3, 1));
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EXPECT_NE(-1, AppendIovs(&iv, b + 5, 1));
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EXPECT_NE(-1, AppendIovs(&iv, b + 7, 1));
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EXPECT_EQ(8, iv.i);
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EXPECT_GE(iv.n, iv.i);
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EXPECT_EQ(b + 0, iv.p[0].iov_base);
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EXPECT_EQ(1, iv.p[0].iov_len);
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EXPECT_EQ(b + 2, iv.p[1].iov_base);
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EXPECT_EQ(1, iv.p[1].iov_len);
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EXPECT_EQ(b + 4, iv.p[2].iov_base);
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EXPECT_EQ(1, iv.p[2].iov_len);
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EXPECT_EQ(b + 6, iv.p[3].iov_base);
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EXPECT_EQ(1, iv.p[3].iov_len);
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EXPECT_EQ(b + 1, iv.p[4].iov_base);
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EXPECT_EQ(1, iv.p[4].iov_len);
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EXPECT_EQ(b + 3, iv.p[5].iov_base);
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EXPECT_EQ(1, iv.p[5].iov_len);
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EXPECT_EQ(b + 5, iv.p[6].iov_base);
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EXPECT_EQ(1, iv.p[6].iov_len);
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EXPECT_EQ(b + 7, iv.p[7].iov_base);
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EXPECT_EQ(1, iv.p[7].iov_len);
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FreeIovs(&iv);
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}
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