add a class for logging builds (commands + timing)

1 files changed, 43 insertions, 0 deletions

diff --git a/src/build_log_test.cc b/src/build_log_test.cc
new file mode 100644
index 0000000..6807a04
--- /dev/null
+++ b/src/build_log_test.cc
@@ -0,0 +1,43 @@
+#include "build_log.h"
+
+#include "test.h"
+
+struct BuildLogTest : public StateTestWithBuiltinRules {
+  virtual void SetUp() {
+    char mktemp_template[] = "BuildLogTest-XXXXXX";
+    log_filename_ = mktemp(mktemp_template);
+  }
+  virtual void TearDown() {
+    unlink(log_filename_.c_str());
+  }
+
+  string log_filename_;
+};
+
+TEST_F(BuildLogTest, WriteRead) {
+  AssertParse(&state_,
+"build out: cat mid\n"
+"build mid: cat in\n");
+
+  BuildLog log1;
+  string err;
+  EXPECT_TRUE(log1.OpenForWrite(log_filename_, &err));
+  ASSERT_EQ("", err);
+  log1.RecordCommand(state_.edges_[0], 15);
+  log1.RecordCommand(state_.edges_[1], 20);
+  log1.Close();
+
+  BuildLog log2;
+  EXPECT_TRUE(log2.Load(log_filename_, &err));
+  ASSERT_EQ("", err);
+
+  ASSERT_EQ(2, log1.log_.size());
+  ASSERT_EQ(2, log2.log_.size());
+  BuildLog::LogEntry* e1 = log1.LookupByOutput("out");
+  ASSERT_TRUE(e1);
+  BuildLog::LogEntry* e2 = log2.LookupByOutput("out");
+  ASSERT_TRUE(e2);
+  ASSERT_TRUE(*e1 == *e2);
+  ASSERT_EQ(15, e1->time_ms);
+  ASSERT_EQ("out", e1->output);
+}