| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // Author: jmarantz@google.com (Joshua Marantz) |
| |
| // Unit-test the RewriteContext class. This is made simplest by |
| // setting up some dummy rewriters in our test framework. |
| |
| #ifndef NET_INSTAWEB_REWRITER_PUBLIC_REWRITE_CONTEXT_TEST_BASE_H_ |
| #define NET_INSTAWEB_REWRITER_PUBLIC_REWRITE_CONTEXT_TEST_BASE_H_ |
| |
| #include "net/instaweb/rewriter/public/rewrite_context.h" |
| |
| #include <utility> |
| #include <vector> |
| |
| #include "net/instaweb/rewriter/cached_result.pb.h" |
| #include "net/instaweb/rewriter/public/output_resource.h" |
| #include "net/instaweb/rewriter/public/output_resource_kind.h" |
| #include "net/instaweb/rewriter/public/resource.h" |
| #include "net/instaweb/rewriter/public/resource_combiner.h" |
| #include "net/instaweb/rewriter/public/resource_slot.h" |
| #include "net/instaweb/rewriter/public/rewrite_driver.h" |
| #include "net/instaweb/rewriter/public/rewrite_filter.h" |
| #include "net/instaweb/rewriter/public/rewrite_test_base.h" |
| #include "net/instaweb/rewriter/public/server_context.h" |
| #include "net/instaweb/rewriter/public/simple_text_filter.h" |
| #include "net/instaweb/rewriter/public/single_rewrite_context.h" |
| #include "net/instaweb/rewriter/public/test_rewrite_driver_factory.h" |
| #include "pagespeed/kernel/base/basictypes.h" |
| #include "pagespeed/kernel/base/message_handler.h" |
| #include "pagespeed/kernel/base/scoped_ptr.h" |
| #include "pagespeed/kernel/base/string.h" |
| #include "pagespeed/kernel/base/string_util.h" |
| #include "pagespeed/kernel/base/timer.h" |
| #include "pagespeed/kernel/base/writer.h" |
| #include "pagespeed/kernel/html/html_element.h" |
| #include "pagespeed/kernel/html/html_name.h" |
| #include "pagespeed/kernel/html/html_parse_test_base.h" |
| #include "pagespeed/kernel/http/content_type.h" |
| #include "pagespeed/kernel/thread/worker_test_base.h" |
| #include "pagespeed/kernel/util/url_multipart_encoder.h" |
| #include "pagespeed/kernel/util/url_segment_encoder.h" |
| |
| |
| namespace net_instaweb { |
| |
| class MockScheduler; |
| |
| // Simple test filter just trims whitespace from the input resource. |
| class TrimWhitespaceRewriter : public SimpleTextFilter::Rewriter { |
| public: |
| static const char kFilterId[]; |
| |
| explicit TrimWhitespaceRewriter(OutputResourceKind kind) : kind_(kind) { |
| ClearStats(); |
| } |
| |
| // Stats |
| int num_rewrites() const { return num_rewrites_; } |
| void ClearStats() { num_rewrites_ = 0; } |
| |
| protected: |
| REFCOUNT_FRIEND_DECLARATION(TrimWhitespaceRewriter); |
| virtual ~TrimWhitespaceRewriter(); |
| |
| virtual bool RewriteText(const StringPiece& url, const StringPiece& in, |
| GoogleString* out, |
| ServerContext* server_context); |
| virtual HtmlElement::Attribute* FindResourceAttribute(HtmlElement* element); |
| virtual OutputResourceKind kind() const { return kind_; } |
| virtual const char* id() const { return kFilterId; } |
| virtual const char* name() const { return "TrimWhitespace"; } |
| |
| private: |
| OutputResourceKind kind_; |
| |
| int num_rewrites_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TrimWhitespaceRewriter); |
| }; |
| |
| // Test filter that replaces a CSS resource URL with a corresponding Pagespeed |
| // resource URL. When that URL is requested, it will invoke a rewriter that |
| // trims whitespace in the line of serving. Does not require or expect the |
| // resource to be fetched or loaded from cache at rewrite time. |
| class TrimWhitespaceSyncFilter : public SimpleTextFilter { |
| public: |
| static const char kFilterId[]; |
| |
| explicit TrimWhitespaceSyncFilter(OutputResourceKind kind, |
| RewriteDriver* driver) |
| : SimpleTextFilter(new TrimWhitespaceRewriter(kind), driver) { |
| } |
| virtual ~TrimWhitespaceSyncFilter(); |
| |
| virtual void StartElementImpl(HtmlElement* element); |
| virtual const char* id() const { return kFilterId; } |
| virtual const char* name() const { return "TrimWhitespaceSync"; } |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(TrimWhitespaceSyncFilter); |
| }; |
| |
| // A similarly structured test-filter: this one just upper-cases its text. |
| class UpperCaseRewriter : public SimpleTextFilter::Rewriter { |
| public: |
| static const char kFilterId[]; |
| |
| explicit UpperCaseRewriter(OutputResourceKind kind) |
| : kind_(kind), num_rewrites_(0) {} |
| static SimpleTextFilter* MakeFilter(OutputResourceKind kind, |
| RewriteDriver* driver, |
| UpperCaseRewriter** rewriter_out) { |
| *rewriter_out = new UpperCaseRewriter(kind); |
| return new SimpleTextFilter(*rewriter_out, driver); |
| } |
| |
| int num_rewrites() const { return num_rewrites_; } |
| void ClearStats() { num_rewrites_ = 0; } |
| |
| protected: |
| REFCOUNT_FRIEND_DECLARATION(UpperCaseRewriter); |
| virtual ~UpperCaseRewriter(); |
| |
| virtual bool RewriteText(const StringPiece& url, const StringPiece& in, |
| GoogleString* out, |
| ServerContext* server_context) { |
| ++num_rewrites_; |
| in.CopyToString(out); |
| UpperString(out); |
| return in != *out; |
| } |
| virtual HtmlElement::Attribute* FindResourceAttribute(HtmlElement* element) { |
| if (element->keyword() == HtmlName::kLink) { |
| return element->FindAttribute(HtmlName::kHref); |
| } |
| return NULL; |
| } |
| virtual OutputResourceKind kind() const { return kind_; } |
| virtual const char* id() const { return kFilterId; } |
| virtual const char* name() const { return "UpperCase"; } |
| |
| private: |
| OutputResourceKind kind_; |
| int num_rewrites_; |
| |
| DISALLOW_COPY_AND_ASSIGN(UpperCaseRewriter); |
| }; |
| |
| // Filter that contains nested resources that must themselves |
| // be rewritten. |
| class NestedFilter : public RewriteFilter { |
| public: |
| // For use with NestedFilter constructor |
| static const bool kExpectNestedRewritesSucceed = true; |
| static const bool kExpectNestedRewritesFail = false; |
| |
| static const char kFilterId[]; |
| |
| NestedFilter(RewriteDriver* driver, SimpleTextFilter* upper_filter, |
| UpperCaseRewriter* upper_rewriter, bool expected_nested_result) |
| : RewriteFilter(driver), upper_filter_(upper_filter), |
| upper_rewriter_(upper_rewriter), chain_(false), |
| check_nested_rewrite_result_(true), |
| expected_nested_rewrite_result_(expected_nested_result) { |
| ClearStats(); |
| } |
| |
| // Stats |
| int num_top_rewrites() const { return num_top_rewrites_; } |
| int num_sub_rewrites() const { return upper_rewriter_->num_rewrites(); } |
| |
| void ClearStats() { |
| num_top_rewrites_ = 0; |
| upper_rewriter_->ClearStats(); |
| } |
| |
| // Set this to true to create a chain of nested rewrites on the same slot. |
| void set_chain(bool x) { chain_ = x; } |
| |
| bool expected_nested_rewrite_result() const { |
| return expected_nested_rewrite_result_; |
| } |
| |
| void set_expected_nested_rewrite_result(bool x) { |
| expected_nested_rewrite_result_ = x; |
| } |
| |
| void set_check_nested_rewrite_result(bool x) { |
| check_nested_rewrite_result_ = x; |
| } |
| |
| protected: |
| virtual ~NestedFilter(); |
| |
| class NestedSlot : public ResourceSlot { |
| public: |
| explicit NestedSlot(const ResourcePtr& resource) : ResourceSlot(resource) {} |
| virtual HtmlElement* element() const { return NULL; } |
| virtual void Render() {} |
| virtual GoogleString LocationString() const { return "nested:"; } |
| }; |
| |
| class Context : public SingleRewriteContext { |
| public: |
| Context(RewriteDriver* driver, NestedFilter* filter, bool chain) |
| : SingleRewriteContext(driver, NULL, NULL), |
| filter_(filter), |
| chain_(chain) { |
| } |
| virtual ~Context(); |
| virtual void RewriteSingle( |
| const ResourcePtr& input, const OutputResourcePtr& output); |
| virtual void Harvest(); |
| |
| protected: |
| virtual const char* id() const { return kFilterId; } |
| virtual OutputResourceKind kind() const { return kRewrittenResource; } |
| |
| private: |
| std::vector<GoogleString*> strings_; |
| NestedFilter* filter_; |
| bool chain_; |
| ResourceSlotVector nested_slots_; |
| |
| DISALLOW_COPY_AND_ASSIGN(Context); |
| }; |
| |
| virtual RewriteContext* MakeRewriteContext() { |
| return new Context(driver(), this, chain_); |
| } |
| |
| virtual void StartElementImpl(HtmlElement* element); |
| SimpleTextFilter* upper_filter() { return upper_filter_; } |
| |
| virtual const char* id() const { return kFilterId; } |
| virtual const char* Name() const { return "NestedFilter"; } |
| virtual void StartDocumentImpl() {} |
| virtual void EndElementImpl(HtmlElement* element) {} |
| |
| private: |
| // Upper-casing filter we also invoke. |
| SimpleTextFilter* upper_filter_; |
| UpperCaseRewriter* upper_rewriter_; |
| bool chain_; |
| |
| // Whether to check the result of the nested rewrites. |
| bool check_nested_rewrite_result_; |
| // Whether we expect nested rewrites to be successful. |
| bool expected_nested_rewrite_result_; |
| |
| // Stats |
| int num_top_rewrites_; |
| |
| DISALLOW_COPY_AND_ASSIGN(NestedFilter); |
| }; |
| |
| // Simple version of CombineCssFilter. |
| // |
| // Concatenates all CSS files loaded from <link> tags into a single output. |
| // Does not consider barriers, @import statements, absolutification, etc. |
| class CombiningFilter : public RewriteFilter { |
| public: |
| static const char kFilterId[]; |
| |
| CombiningFilter(RewriteDriver* driver, |
| MockScheduler* scheduler, |
| int64 rewrite_delay_ms); |
| virtual ~CombiningFilter(); |
| |
| class Combiner : public ResourceCombiner { |
| public: |
| Combiner(RewriteDriver* driver, RewriteFilter* filter) |
| : ResourceCombiner( |
| driver, kContentTypeCss.file_extension() + 1, filter) { |
| } |
| OutputResourcePtr MakeOutput() { |
| return Combine(rewrite_driver_->message_handler()); |
| } |
| bool Write(const ResourceVector& in, const OutputResourcePtr& out) { |
| return WriteCombination(in, out, rewrite_driver_->message_handler()); |
| } |
| |
| virtual bool WritePiece(int index, int num_pieces, const Resource* input, |
| OutputResource* combination, |
| Writer* writer, MessageHandler* handler) { |
| writer->Write(prefix_, handler); |
| return ResourceCombiner::WritePiece( |
| index, num_pieces, input, combination, writer, handler); |
| } |
| |
| void set_prefix(const GoogleString& prefix) { prefix_ = prefix; } |
| |
| private: |
| virtual const ContentType* CombinationContentType() { |
| return &kContentTypeCss; |
| } |
| |
| GoogleString prefix_; |
| }; |
| |
| virtual const char* id() const { return kFilterId; } |
| |
| class Context : public RewriteContext { |
| public: |
| Context(RewriteDriver* driver, CombiningFilter* filter, |
| MockScheduler* scheduler); |
| |
| void AddElement(HtmlElement* element, HtmlElement::Attribute* href, |
| const ResourcePtr& resource) { |
| ResourceSlotPtr slot(Driver()->GetSlot(resource, element, href)); |
| AddSlot(slot); |
| } |
| |
| protected: |
| virtual bool Partition(OutputPartitions* partitions, |
| OutputResourceVector* outputs); |
| |
| virtual void Rewrite(int partition_index, |
| CachedResult* partition, |
| const OutputResourcePtr& output); |
| virtual bool OptimizationOnly() const { |
| return filter_->optimization_only(); |
| } |
| |
| void DoRewrite(int partition_index, |
| CachedResult* partition, |
| OutputResourcePtr output); |
| virtual void Render(); |
| virtual void WillNotRender(); |
| virtual void Cancel(); |
| void DisableRemovedSlots(CachedResult* partition); |
| virtual const UrlSegmentEncoder* encoder() const { return &encoder_; } |
| virtual const char* id() const { return kFilterId; } |
| virtual OutputResourceKind kind() const { |
| return filter_->on_the_fly_ ? kOnTheFlyResource : kRewrittenResource; |
| } |
| |
| private: |
| Combiner combiner_; |
| UrlMultipartEncoder encoder_; |
| MockScheduler* scheduler_; |
| int64 time_at_start_of_rewrite_us_; |
| CombiningFilter* filter_; |
| }; |
| |
| virtual void StartDocumentImpl() {} |
| virtual void StartElementImpl(HtmlElement* element); |
| virtual void Flush() { |
| if (context_.get() != NULL) { |
| driver()->InitiateRewrite(context_.release()); |
| } |
| } |
| |
| virtual void EndElementImpl(HtmlElement* element) {} |
| virtual const char* Name() const { return "Combining"; } |
| RewriteContext* MakeRewriteContext() { |
| return new Context(driver(), this, scheduler_); |
| } |
| virtual const UrlSegmentEncoder* encoder() const { return &encoder_; } |
| |
| virtual bool ComputeOnTheFly() const { return on_the_fly_; } |
| |
| int num_rewrites() const { return num_rewrites_; } |
| int num_render() const { return num_render_; } |
| int num_will_not_render() const { return num_will_not_render_; } |
| int num_cancel() const { return num_cancel_; } |
| |
| void ClearStats() { num_rewrites_ = 0; } |
| int64 rewrite_delay_ms() const { return rewrite_delay_ms_; } |
| void set_rewrite_block_on(WorkerTestBase::SyncPoint* sync) { |
| rewrite_block_on_ = sync; |
| } |
| |
| void set_rewrite_signal_on(WorkerTestBase::SyncPoint* sync) { |
| rewrite_signal_on_ = sync; |
| } |
| |
| // Each entry in combination will be prefixed with this. |
| void set_prefix(const GoogleString& prefix) { prefix_ = prefix; } |
| |
| void set_on_the_fly(bool v) { on_the_fly_ = v; } |
| |
| void set_disable_successors(bool v) { disable_successors_ = v; } |
| |
| bool optimization_only() const { return optimization_only_; } |
| void set_optimization_only(bool o) { optimization_only_ = o; } |
| |
| private: |
| friend class Context; |
| |
| scoped_ptr<Context> context_; |
| UrlMultipartEncoder encoder_; |
| MockScheduler* scheduler_; |
| int num_rewrites_; |
| int num_render_; |
| int num_will_not_render_; |
| int num_cancel_; |
| int64 rewrite_delay_ms_; |
| |
| // If this is non-NULL, the actual rewriting will block until this is |
| // signaled. Applied before rewrite_delay_ms_ |
| WorkerTestBase::SyncPoint* rewrite_block_on_; |
| |
| // If this is non-NULL, this will be signaled the moment rewrite is called |
| // on the context, before rewrite_block_on_ and rewrite_delay_ms_ are |
| // applied. |
| WorkerTestBase::SyncPoint* rewrite_signal_on_; |
| GoogleString prefix_; |
| bool on_the_fly_; // If true, will act as an on-the-fly filter. |
| bool optimization_only_; // If false, will disable load-shedding and fetch |
| // rewrite deadlines. |
| bool disable_successors_; // if true, will disable successors for all |
| // slots, not just mutated ones. |
| |
| DISALLOW_COPY_AND_ASSIGN(CombiningFilter); |
| }; |
| |
| class RewriteContextTestBase : public RewriteTestBase { |
| protected: |
| static const int64 kRewriteDeadlineMs = 20; |
| |
| // Use a TTL value other than the implicit value, so we are sure we are using |
| // the original TTL value. |
| static const int64 kOriginTtlMs = 12 * Timer::kMinuteMs; |
| // An TTL value that is lower than the default implicit TTL value (300 |
| // seconds). |
| static const int64 kLowOriginTtlMs = 5 * Timer::kSecondMs; |
| |
| // Use a TTL value other than the implicit value, so we are sure we are using |
| // the original TTL value. |
| GoogleString OriginTtlMaxAge() { |
| return StrCat("max-age=", Integer64ToString( |
| kOriginTtlMs / Timer::kSecondMs)); |
| } |
| |
| explicit RewriteContextTestBase( |
| std::pair<TestRewriteDriverFactory*, TestRewriteDriverFactory*> factories) |
| : RewriteTestBase(factories) {} |
| RewriteContextTestBase() {} |
| virtual ~RewriteContextTestBase(); |
| |
| virtual void SetUp(); |
| virtual void TearDown(); |
| virtual bool AddBody() const { return false; } |
| virtual void ClearStats(); |
| |
| void InitResources() { InitResourcesToDomain(kTestDomain); } |
| void InitResourcesToDomain(const char* domain); |
| void InitTrimFilters(OutputResourceKind kind); |
| void InitUpperFilter(OutputResourceKind kind, RewriteDriver* rewrite_driver); |
| void InitCombiningFilter(int64 rewrite_delay_ms); |
| void InitNestedFilter(bool expected_nested_rewrite_result); |
| |
| TrimWhitespaceRewriter* trim_filter_; |
| TrimWhitespaceRewriter* other_trim_filter_; |
| CombiningFilter* combining_filter_; |
| NestedFilter* nested_filter_; |
| }; |
| |
| } // namespace net_instaweb |
| |
| #endif // NET_INSTAWEB_REWRITER_PUBLIC_REWRITE_CONTEXT_TEST_BASE_H_ |