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author | Evan Martin <martine@danga.com> | 2010-12-05 00:09:50 (GMT) |
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committer | Evan Martin <martine@danga.com> | 2010-12-05 00:09:50 (GMT) |
commit | 42d237e7841679b27cd5dcae82d143d86a87a807 (patch) | |
tree | 253b0cf88ecf3b0404146a7c7945dd4c660afa04 /src/build_test.cc | |
parent | d0025e234cf3fc0a13f45d179880578285609b59 (diff) | |
download | Ninja-42d237e7841679b27cd5dcae82d143d86a87a807.zip Ninja-42d237e7841679b27cd5dcae82d143d86a87a807.tar.gz Ninja-42d237e7841679b27cd5dcae82d143d86a87a807.tar.bz2 |
move src into subdir
Diffstat (limited to 'src/build_test.cc')
-rw-r--r-- | src/build_test.cc | 488 |
1 files changed, 488 insertions, 0 deletions
diff --git a/src/build_test.cc b/src/build_test.cc new file mode 100644 index 0000000..2ded588 --- /dev/null +++ b/src/build_test.cc @@ -0,0 +1,488 @@ +#include "build.h" + +#include "test.h" + +// Though Plan doesn't use State, it's useful to have one around +// to create Nodes and Edges. +struct PlanTest : public StateTestWithBuiltinRules { + Plan plan_; +}; + +TEST_F(PlanTest, Basic) { + AssertParse(&state_, +"build out: cat mid\n" +"build mid: cat in\n"); + GetNode("in")->MarkDependentsDirty(); + string err; + EXPECT_TRUE(plan_.AddTarget(GetNode("out"), &err)); + ASSERT_EQ("", err); + ASSERT_TRUE(plan_.more_to_do()); + + Edge* edge = plan_.FindWork(); + ASSERT_TRUE(edge); + ASSERT_EQ("in", edge->inputs_[0]->file_->path_); + ASSERT_EQ("mid", edge->outputs_[0]->file_->path_); + + ASSERT_FALSE(plan_.FindWork()); + + GetNode("mid")->dirty_ = false; + plan_.EdgeFinished(edge); + + edge = plan_.FindWork(); + ASSERT_TRUE(edge); + ASSERT_EQ("mid", edge->inputs_[0]->file_->path_); + ASSERT_EQ("out", edge->outputs_[0]->file_->path_); + + GetNode("out")->dirty_ = false; + plan_.EdgeFinished(edge); + + ASSERT_FALSE(plan_.more_to_do()); + edge = plan_.FindWork(); + ASSERT_EQ(NULL, edge); +} + +// Test that two outputs from one rule can be handled as inputs to the next. +TEST_F(PlanTest, DoubleOutputDirect) { + AssertParse(&state_, +"build out: cat mid1 mid2\n" +"build mid1 mid2: cat in\n"); + GetNode("in")->MarkDependentsDirty(); + string err; + EXPECT_TRUE(plan_.AddTarget(GetNode("out"), &err)); + ASSERT_EQ("", err); + ASSERT_TRUE(plan_.more_to_do()); + + Edge* edge; + edge = plan_.FindWork(); + ASSERT_TRUE(edge); // cat in + GetNode("mid1")->dirty_ = false; + GetNode("mid2")->dirty_ = false; + plan_.EdgeFinished(edge); + + edge = plan_.FindWork(); + ASSERT_TRUE(edge); // cat mid1 mid2 + GetNode("in")->dirty_ = false; + plan_.EdgeFinished(edge); + + edge = plan_.FindWork(); + ASSERT_FALSE(edge); // done +} + +// Test that two outputs from one rule can eventually be routed to another. +TEST_F(PlanTest, DoubleOutputIndirect) { + AssertParse(&state_, +"build out: cat b1 b2\n" +"build b1: cat a1\n" +"build b2: cat a2\n" +"build a1 a2: cat in\n"); + GetNode("in")->MarkDependentsDirty(); + string err; + EXPECT_TRUE(plan_.AddTarget(GetNode("out"), &err)); + ASSERT_EQ("", err); + ASSERT_TRUE(plan_.more_to_do()); + + Edge* edge; + edge = plan_.FindWork(); + ASSERT_TRUE(edge); // cat in + GetNode("a1")->dirty_ = false; + GetNode("a2")->dirty_ = false; + plan_.EdgeFinished(edge); + + edge = plan_.FindWork(); + ASSERT_TRUE(edge); // cat a1 + GetNode("b1")->dirty_ = false; + plan_.EdgeFinished(edge); + + edge = plan_.FindWork(); + ASSERT_TRUE(edge); // cat a2 + GetNode("b2")->dirty_ = false; + plan_.EdgeFinished(edge); + + edge = plan_.FindWork(); + ASSERT_TRUE(edge); // cat b1 b2 + GetNode("out")->dirty_ = false; + plan_.EdgeFinished(edge); + + edge = plan_.FindWork(); + ASSERT_FALSE(edge); // done +} + +// Test that two edges from one output can both execute. +TEST_F(PlanTest, DoubleDependent) { + AssertParse(&state_, +"build out: cat a1 a2\n" +"build a1: cat mid\n" +"build a2: cat mid\n" +"build mid: cat in\n"); + GetNode("in")->MarkDependentsDirty(); + string err; + EXPECT_TRUE(plan_.AddTarget(GetNode("out"), &err)); + ASSERT_EQ("", err); + ASSERT_TRUE(plan_.more_to_do()); + + Edge* edge; + edge = plan_.FindWork(); + ASSERT_TRUE(edge); // cat in + GetNode("mid")->dirty_ = false; + plan_.EdgeFinished(edge); + + edge = plan_.FindWork(); + ASSERT_TRUE(edge); // cat mid + GetNode("a1")->dirty_ = false; + plan_.EdgeFinished(edge); + + edge = plan_.FindWork(); + ASSERT_TRUE(edge); // cat mid + GetNode("a2")->dirty_ = false; + plan_.EdgeFinished(edge); + + edge = plan_.FindWork(); + ASSERT_TRUE(edge); // cat a1 a2 + GetNode("out")->dirty_ = false; + plan_.EdgeFinished(edge); + + edge = plan_.FindWork(); + ASSERT_FALSE(edge); // done +} + +TEST_F(PlanTest, DependencyCycle) { + AssertParse(&state_, +"build out: cat mid\n" +"build mid: cat in\n" +"build in: cat pre\n" +"build pre: cat out\n"); + GetNode("pre")->MarkDependentsDirty(); + string err; + EXPECT_FALSE(plan_.AddTarget(GetNode("out"), &err)); + ASSERT_EQ("dependency cycle: out -> mid -> in -> pre -> out", err); +} + +struct BuildTest : public StateTestWithBuiltinRules, + public CommandRunner, + public DiskInterface { + BuildTest() : builder_(&state_), now_(1), last_command_(NULL) { + builder_.disk_interface_ = this; + builder_.command_runner_ = this; + AssertParse(&state_, +"build cat1: cat in1\n" +"build cat2: cat in1 in2\n" +"build cat12: cat cat1 cat2\n"); + } + + // Mark a path dirty. + void Dirty(const string& path); + // Mark dependents of a path dirty. + void Touch(const string& path); + + // CommandRunner impl + virtual bool CanRunMore(); + virtual bool StartCommand(Edge* edge); + virtual void WaitForCommands(); + virtual Edge* NextFinishedCommand(bool* success); + + // DiskInterface + virtual int Stat(const string& path) { + return now_; + } + virtual bool MakeDir(const string& path) { + directories_made_.push_back(path); + return true; // success + } + virtual string ReadFile(const string& path, string* err) { + files_read_.push_back(path); + map<string, string>::iterator i = file_contents_.find(path); + if (i != file_contents_.end()) + return i->second; + return ""; + } + + Builder builder_; + int now_; + map<string, string> file_contents_; + vector<string> commands_ran_; + vector<string> directories_made_; + vector<string> files_read_; + Edge* last_command_; +}; + +void BuildTest::Dirty(const string& path) { + Node* node = GetNode(path); + node->MarkDirty(); + + // If it's an input file, mark that we've already stat()ed it and + // it's missing. + if (!node->in_edge_) + node->file_->mtime_ = 0; +} + +void BuildTest::Touch(const string& path) { + Node* node = GetNode(path); + assert(node); + node->MarkDependentsDirty(); +} + +bool BuildTest::CanRunMore() { + // Only run one at a time. + return last_command_ == NULL; +} + +bool BuildTest::StartCommand(Edge* edge) { + assert(!last_command_); + commands_ran_.push_back(edge->EvaluateCommand()); + if (edge->rule_->name_ == "cat" || edge->rule_->name_ == "cc") { + for (vector<Node*>::iterator out = edge->outputs_.begin(); + out != edge->outputs_.end(); ++out) { + (*out)->file_->Touch(now_); + } + last_command_ = edge; + return true; + } else { + printf("unkown command\n"); + } + + return false; +} + +void BuildTest::WaitForCommands() { +} + +Edge* BuildTest::NextFinishedCommand(bool* success) { + if (Edge* edge = last_command_) { + *success = true; + last_command_ = NULL; + return edge; + } + return NULL; +} + +TEST_F(BuildTest, NoWork) { + string err; + EXPECT_TRUE(builder_.Build(&err)); + EXPECT_EQ("no work to do", err); + EXPECT_EQ(0, commands_ran_.size()); +} + +TEST_F(BuildTest, OneStep) { + // Given a dirty target with one ready input, + // we should rebuild the target. + Dirty("cat1"); + string err; + ASSERT_TRUE(builder_.AddTarget("cat1", &err)); + EXPECT_TRUE(builder_.Build(&err)); + EXPECT_EQ("", err); + + ASSERT_EQ(1, commands_ran_.size()); + EXPECT_EQ("cat in1 > cat1", commands_ran_[0]); +} + +TEST_F(BuildTest, OneStep2) { + // Given a target with one dirty input, + // we should rebuild the target. + Dirty("cat1"); + string err; + EXPECT_TRUE(builder_.AddTarget("cat1", &err)); + ASSERT_EQ("", err); + EXPECT_TRUE(builder_.Build(&err)); + EXPECT_EQ("", err); + + ASSERT_EQ(1, commands_ran_.size()); + EXPECT_EQ("cat in1 > cat1", commands_ran_[0]); +} + +TEST_F(BuildTest, TwoStep) { + // Modifying in1 requires rebuilding both intermediate files + // and the final file. + Touch("in1"); + string err; + EXPECT_TRUE(builder_.AddTarget("cat12", &err)); + ASSERT_EQ("", err); + EXPECT_TRUE(builder_.Build(&err)); + EXPECT_EQ("", err); + ASSERT_EQ(3, commands_ran_.size()); + EXPECT_EQ("cat in1 > cat1", commands_ran_[0]); + EXPECT_EQ("cat in1 in2 > cat2", commands_ran_[1]); + EXPECT_EQ("cat cat1 cat2 > cat12", commands_ran_[2]); + + // Modifying in2 requires rebuilding one intermediate file + // and the final file. + Touch("in2"); + ASSERT_TRUE(builder_.AddTarget("cat12", &err)); + EXPECT_TRUE(builder_.Build(&err)); + EXPECT_EQ("", err); + ASSERT_EQ(5, commands_ran_.size()); + EXPECT_EQ("cat in1 in2 > cat2", commands_ran_[3]); + EXPECT_EQ("cat cat1 cat2 > cat12", commands_ran_[4]); +} + +TEST_F(BuildTest, Chain) { + ASSERT_NO_FATAL_FAILURE(AssertParse(&state_, +"build c2: cat c1\n" +"build c3: cat c2\n" +"build c4: cat c3\n" +"build c5: cat c4\n")); + + Touch("c1"); // Will recursively dirty all the way to c5. + string err; + EXPECT_TRUE(builder_.AddTarget("c5", &err)); + ASSERT_EQ("", err); + EXPECT_TRUE(builder_.Build(&err)); + EXPECT_EQ("", err); + ASSERT_EQ(4, commands_ran_.size()); + + err.clear(); + commands_ran_.clear(); + EXPECT_FALSE(builder_.AddTarget("c5", &err)); + ASSERT_EQ("", err); + EXPECT_TRUE(builder_.Build(&err)); + ASSERT_EQ(0, commands_ran_.size()); + + Touch("c3"); // Will recursively dirty through to c5. + err.clear(); + commands_ran_.clear(); + EXPECT_TRUE(builder_.AddTarget("c5", &err)); + ASSERT_EQ("", err); + EXPECT_TRUE(builder_.Build(&err)); + ASSERT_EQ(2, commands_ran_.size()); // 3->4, 4->5 +} + +TEST_F(BuildTest, MissingInput) { + // Input is referenced by build file, but no rule for it. + string err; + Dirty("in1"); + EXPECT_FALSE(builder_.AddTarget("cat1", &err)); + EXPECT_EQ("'in1', needed by 'cat1', missing and no known rule to make it", + err); +} + +TEST_F(BuildTest, MissingTarget) { + // Target is not referenced by build file. + string err; + EXPECT_FALSE(builder_.AddTarget("meow", &err)); + EXPECT_EQ("unknown target: 'meow'", err); +} + +TEST_F(BuildTest, MakeDirs) { + string err; + ASSERT_NO_FATAL_FAILURE(AssertParse(&state_, +"build subdir/dir2/file: cat in1\n")); + + Touch("in1"); + EXPECT_TRUE(builder_.AddTarget("subdir/dir2/file", &err)); + EXPECT_EQ("", err); + now_ = 0; // Make all stat()s return file not found. + EXPECT_TRUE(builder_.Build(&err)); + ASSERT_EQ("", err); + ASSERT_EQ(2, directories_made_.size()); + EXPECT_EQ("subdir", directories_made_[0]); + EXPECT_EQ("subdir/dir2", directories_made_[1]); +} + +TEST_F(BuildTest, DepFileMissing) { + string err; + ASSERT_NO_FATAL_FAILURE(AssertParse(&state_, +"rule cc\n command = cc $in\n depfile = $out.d\n" +"build foo.o: cc foo.c\n")); + Touch("foo.c"); + EXPECT_TRUE(builder_.AddTarget("foo.o", &err)); + ASSERT_EQ("", err); + ASSERT_EQ(1, files_read_.size()); + EXPECT_EQ("foo.o.d", files_read_[0]); +} + +TEST_F(BuildTest, DepFileOK) { + string err; + int orig_edges = state_.edges_.size(); + ASSERT_NO_FATAL_FAILURE(AssertParse(&state_, +"rule cc\n command = cc $in\n depfile = $out.d\n" +"build foo.o: cc foo.c\n")); + Touch("foo.c"); + Dirty("bar.h"); // Mark bar.h as missing. + file_contents_["foo.o.d"] = "foo.o: blah.h bar.h\n"; + EXPECT_TRUE(builder_.AddTarget("foo.o", &err)); + ASSERT_EQ("", err); + ASSERT_EQ(1, files_read_.size()); + EXPECT_EQ("foo.o.d", files_read_[0]); + + // Expect our edge to now have three inputs: foo.c and two headers. + ASSERT_EQ(orig_edges + 1, state_.edges_.size()); + Edge* edge = state_.edges_.back(); + ASSERT_EQ(3, edge->inputs_.size()); + + // Expect the command line we generate to only use the original input. + ASSERT_EQ("cc foo.c", edge->EvaluateCommand()); +} + +TEST_F(BuildTest, DepFileParseError) { + string err; + ASSERT_NO_FATAL_FAILURE(AssertParse(&state_, +"rule cc\n command = cc $in\n depfile = $out.d\n" +"build foo.o: cc foo.c\n")); + Touch("foo.c"); + file_contents_["foo.o.d"] = "foo.o blah.h bar.h\n"; + EXPECT_FALSE(builder_.AddTarget("foo.o", &err)); + EXPECT_EQ("line 1, col 7: expected ':', got 'blah.h'", err); +} + +TEST_F(BuildTest, OrderOnlyDeps) { + string err; + ASSERT_NO_FATAL_FAILURE(AssertParse(&state_, +"rule cc\n command = cc $in\n depfile = $out.d\n" +"build foo.o: cc foo.c | otherfile\n")); + Touch("foo.c"); + file_contents_["foo.o.d"] = "foo.o: blah.h bar.h\n"; + EXPECT_TRUE(builder_.AddTarget("foo.o", &err)); + + Edge* edge = state_.edges_.back(); + // One explicit, two implicit, one order only. + ASSERT_EQ(4, edge->inputs_.size()); + EXPECT_EQ(2, edge->implicit_deps_); + EXPECT_EQ(1, edge->order_only_deps_); + // Verify the inputs are in the order we expect + // (explicit then implicit then orderonly). + EXPECT_EQ("foo.c", edge->inputs_[0]->file_->path_); + EXPECT_EQ("blah.h", edge->inputs_[1]->file_->path_); + EXPECT_EQ("bar.h", edge->inputs_[2]->file_->path_); + EXPECT_EQ("otherfile", edge->inputs_[3]->file_->path_); + + // Expect the command line we generate to only use the original input. + ASSERT_EQ("cc foo.c", edge->EvaluateCommand()); + + // explicit dep dirty, expect a rebuild. + EXPECT_TRUE(builder_.Build(&err)); + ASSERT_EQ("", err); + ASSERT_EQ(1, commands_ran_.size()); + + // implicit dep dirty, expect a rebuild. + commands_ran_.clear(); + Touch("blah.h"); + EXPECT_TRUE(builder_.AddTarget("foo.o", &err)); + EXPECT_TRUE(builder_.Build(&err)); + ASSERT_EQ("", err); + ASSERT_EQ(1, commands_ran_.size()); + + // order only dep dirty, no rebuild. + commands_ran_.clear(); + Touch("otherfile"); + // We should fail to even add the depenency on foo.o, because + // there's nothing to do. + EXPECT_FALSE(builder_.AddTarget("foo.o", &err)); +} + +TEST_F(BuildTest, Phony) { + string err; + ASSERT_NO_FATAL_FAILURE(AssertParse(&state_, +"build out: cat bar.cc\n" +"build all: phony out\n")); + Touch("bar.cc"); + + EXPECT_TRUE(builder_.AddTarget("all", &err)); + + // Only one command to run, because phony runs no command. + EXPECT_TRUE(builder_.Build(&err)); + ASSERT_EQ("", err); + ASSERT_EQ(1, commands_ran_.size()); + + EXPECT_TRUE(builder_.Build(&err)); + ASSERT_NE("", err); +} + |