unittests/Support/CachePruningTest.cpp

   1 //===- CachePruningTest.cpp -----------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "llvm/Support/CachePruning.h"
  10 #include "llvm/Support/Error.h"
  11 #include "gtest/gtest.h"
  12
  13 using namespace llvm;
  14
  15 TEST(CachePruningPolicyParser, Empty) {
  16   auto P = parseCachePruningPolicy("");
  17   ASSERT_TRUE(bool(P));
  18   EXPECT_EQ(std::chrono::seconds(1200), P->Interval);
  19   EXPECT_EQ(std::chrono::hours(7 * 24), P->Expiration);
  20   EXPECT_EQ(75u, P->MaxSizePercentageOfAvailableSpace);
  21 }
  22
  23 TEST(CachePruningPolicyParser, Interval) {
  24   auto P = parseCachePruningPolicy("prune_interval=1s");
  25   ASSERT_TRUE(bool(P));
  26   EXPECT_EQ(std::chrono::seconds(1), P->Interval);
  27   P = parseCachePruningPolicy("prune_interval=2m");
  28   ASSERT_TRUE(bool(P));
  29   EXPECT_EQ(std::chrono::minutes(2), *P->Interval);
  30   P = parseCachePruningPolicy("prune_interval=3h");
  31   ASSERT_TRUE(bool(P));
  32   EXPECT_EQ(std::chrono::hours(3), *P->Interval);
  33 }
  34
  35 TEST(CachePruningPolicyParser, Expiration) {
  36   auto P = parseCachePruningPolicy("prune_after=1s");
  37   ASSERT_TRUE(bool(P));
  38   EXPECT_EQ(std::chrono::seconds(1), P->Expiration);
  39 }
  40
  41 TEST(CachePruningPolicyParser, MaxSizePercentageOfAvailableSpace) {
  42   auto P = parseCachePruningPolicy("cache_size=100%");
  43   ASSERT_TRUE(bool(P));
  44   EXPECT_EQ(100u, P->MaxSizePercentageOfAvailableSpace);
  45   EXPECT_EQ(0u, P->MaxSizeBytes);
  46 }
  47
  48 TEST(CachePruningPolicyParser, MaxSizeBytes) {
  49   auto P = parseCachePruningPolicy("cache_size_bytes=1");
  50   ASSERT_TRUE(bool(P));
  51   EXPECT_EQ(75u, P->MaxSizePercentageOfAvailableSpace);
  52   EXPECT_EQ(1u, P->MaxSizeBytes);
  53   P = parseCachePruningPolicy("cache_size_bytes=2k");
  54   ASSERT_TRUE(bool(P));
  55   EXPECT_EQ(75u, P->MaxSizePercentageOfAvailableSpace);
  56   EXPECT_EQ(2u * 1024u, P->MaxSizeBytes);
  57   P = parseCachePruningPolicy("cache_size_bytes=3m");
  58   ASSERT_TRUE(bool(P));
  59   EXPECT_EQ(75u, P->MaxSizePercentageOfAvailableSpace);
  60   EXPECT_EQ(3u * 1024u * 1024u, P->MaxSizeBytes);
  61   P = parseCachePruningPolicy("cache_size_bytes=4G");
  62   ASSERT_TRUE(bool(P));
  63   EXPECT_EQ(75u, P->MaxSizePercentageOfAvailableSpace);
  64   EXPECT_EQ(4ull * 1024ull * 1024ull * 1024ull, P->MaxSizeBytes);
  65 }
  66
  67 TEST(CachePruningPolicyParser, Multiple) {
  68   auto P = parseCachePruningPolicy("prune_after=1s:cache_size=50%");
  69   ASSERT_TRUE(bool(P));
  70   EXPECT_EQ(std::chrono::seconds(1200), P->Interval);
  71   EXPECT_EQ(std::chrono::seconds(1), P->Expiration);
  72   EXPECT_EQ(50u, P->MaxSizePercentageOfAvailableSpace);
  73 }
  74
  75 TEST(CachePruningPolicyParser, Errors) {
  76   EXPECT_EQ("Duration must not be empty",
  77             toString(parseCachePruningPolicy("prune_interval=").takeError()));
  78   EXPECT_EQ("'foo' not an integer",
  79             toString(parseCachePruningPolicy("prune_interval=foos").takeError()));
  80   EXPECT_EQ("'24x' must end with one of 's', 'm' or 'h'",
  81             toString(parseCachePruningPolicy("prune_interval=24x").takeError()));
  82   EXPECT_EQ("'foo' must be a percentage",
  83             toString(parseCachePruningPolicy("cache_size=foo").takeError()));
  84   EXPECT_EQ("'foo' not an integer",
  85             toString(parseCachePruningPolicy("cache_size=foo%").takeError()));
  86   EXPECT_EQ("'101' must be between 0 and 100",
  87             toString(parseCachePruningPolicy("cache_size=101%").takeError()));
  88   EXPECT_EQ(
  89       "'foo' not an integer",
  90       toString(parseCachePruningPolicy("cache_size_bytes=foo").takeError()));
  91   EXPECT_EQ(
  92       "'foo' not an integer",
  93       toString(parseCachePruningPolicy("cache_size_bytes=foom").takeError()));
  94   EXPECT_EQ("Unknown key: 'foo'",
  95             toString(parseCachePruningPolicy("foo=bar").takeError()));
  96 }