From a01dd9d21b98f29d120d1ed138da4a4caf91c65f Mon Sep 17 00:00:00 2001
From: Evan Martin <martine@danga.com>
Date: Wed, 20 Oct 2010 21:29:16 -0700
Subject: [PATCH] first stat test

---
 ninja.h       |  2 +-
 ninja_test.cc | 45 ++++++++++++++++++++++++++++++++++++++-------
 2 files changed, 39 insertions(+), 8 deletions(-)

diff --git a/ninja.h b/ninja.h
index def68d9..a69b712 100644
--- a/ninja.h
+++ b/ninja.h
@@ -56,7 +56,7 @@ struct FileStat {
   }
 
   bool status_known() const {
-    return mtime_ == -1;
+    return mtime_ != -1;
   }
 
   string path_;
diff --git a/ninja_test.cc b/ninja_test.cc
index 5a8a893..c02ac73 100644
--- a/ninja_test.cc
+++ b/ninja_test.cc
@@ -133,18 +133,23 @@ struct StateTestWithBuiltinRules : public testing::Test {
   StateTestWithBuiltinRules() {
     AssertParse(&state_,
 "rule cat\n"
-"command cat @in > $out\n"
-"\n"
-"build cat1: cat in1\n"
-"build cat2: cat in1 in2\n"
-"build cat12: cat cat1 cat2\n");
+"command cat @in > $out\n");
   }
+
+  Node* GetNode(const string& path) {
+    return state_.stat_cache()->GetFile(path)->node_;
+  }
+
   State state_;
 };
 
 struct BuildTest : public StateTestWithBuiltinRules,
                    public Shell {
   BuildTest() : builder_(&state_), now_(1) {
+    AssertParse(&state_,
+"build cat1: cat in1\n"
+"build cat2: cat in1 in2\n"
+"build cat12: cat cat1 cat2\n");
   }
 
   void Dirty(const string& path);
@@ -158,7 +163,7 @@ struct BuildTest : public StateTestWithBuiltinRules,
 };
 
 void BuildTest::Dirty(const string& path) {
-  state_.stat_cache()->GetFile(path)->node_->MarkDirty();
+  GetNode(path)->MarkDirty();
 }
 
 bool BuildTest::RunCommand(Edge* edge) {
@@ -260,6 +265,32 @@ TEST_F(BuildTest, Chain) {
   ASSERT_EQ(2, commands_ran_.size());  // 3->4, 4->5
 }
 
-typedef StateTestWithBuiltinRules StatTest;
+struct StatTest : public StateTestWithBuiltinRules,
+                  public StatHelper {
+  virtual int Stat(const string& path);
+
+  map<string, time_t> mtimes_;
+  vector<string> stats_;
+};
+
+int StatTest::Stat(const string& path) {
+  stats_.push_back(path);
+  map<string, time_t>::iterator i = mtimes_.find(path);
+  if (i == mtimes_.end())
+    return 0;  // File not found.
+  return i->second;
+}
+
 TEST_F(StatTest, Simple) {
+  ASSERT_NO_FATAL_FAILURE(AssertParse(&state_,
+"build out: cat in\n"));
+
+  Node* out = GetNode("out");
+  out->file_->Stat(this);
+  ASSERT_EQ(1, stats_.size());
+  Edge* edge = out->in_edge_;
+  edge->RecomputeDirty(this);
+  ASSERT_EQ(2, stats_.size());
+  ASSERT_EQ("out", stats_[0]);
+  ASSERT_EQ("in",  stats_[1]);
 }
-- 
2.7.4