[increr] test incremental analysis

Summary:
A test that records the expected output of:
- reverse analysis call graph
- introduced/pre-existing/fixed issues
- cost analysis results

Currently only the call graph is non-empty.

Reviewed By: PhoebeMay

Differential Revision: D16495470

fbshipit-source-id: f186d73d2

.gitignore

@@ -18,6 +18,7 @@
 /infer/tests/codetoanalyze/java/*/codetoanalyze
 _build_infer
 *.exp.test*
+*.dot.test
 *.test.dot
 *.test.txt
 duplicates.txt
@@ -43,6 +44,7 @@ duplicates.txt
 /infer/tests/build_systems/differential_*/**/*.class
 /infer/tests/build_systems/differential_*/**/Diff*.java
 /infer/tests/build_systems/genrule/report.json
+/infer/tests/build_systems/incremental_analysis/src
 /infer/tests/build_systems/java_test_determinator/*.test
 /infer/tests/codetoanalyze/java/classloads/*.loads
 /infer/tests/codetoanalyze/java/classloads/loads.exp

infer/tests/build_systems/incremental_analysis/Makefile

@@ -0,0 +1,43 @@
+# Copyright (c) Facebook, Inc. and its affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+# E2E test involving the interesting_paths_filter function
+
+TESTS_DIR = ../..
+
+MODIFIED_FILES_FILE = changed_files.txt
+SOURCES = $(wildcard src_after/*.c src_after/*.h src_before/*.c src_before/*.h)
+INFER_OPTIONS = --changed-files-index $(MODIFIED_FILES_FILE) \
+  --incremental-analysis \
+  --debug-level-analysis 1
+
+include $(TESTS_DIR)/differential.make
+
+.PHONY: compare_cg
+compare_cg: $(PREVIOUS_REPORT)
+	$(QUIET)$(call check_no_diff,\
+	  reverse_analysis_callgraph.dot,\
+	  reverse_analysis_callgraph.dot.test)
+
+replace_cg: $(PREVIOUS_REPORT)
+	$(COPY) reverse_analysis_callgraph.dot.test reverse_analysis_callgraph.dot
+
+test: compare_cg
+replace: replace_cg
+
+$(CURRENT_REPORT): $(INFER_CLANG_DEPS) $(SOURCES)
+	$(QUIET)$(REMOVE_DIR) src
+	$(QUIET)$(MKDIR_P) src
+	$(QUIET)$(COPY) src_after/* src/
+	$(QUIET)$(INFER_BIN) -o $(CURRENT_DIR) -- clang -c src/*.c
+
+$(PREVIOUS_REPORT): $(INFER_CLANG_DEPS) $(SOURCES) $(CURRENT_REPORT)
+	$(QUIET)$(REMOVE_DIR) src
+	$(QUIET)$(MKDIR_P) src
+	$(QUIET)$(COPY) src_before/* src/
+	$(QUIET)$(COPY) -r $(CURRENT_DIR) $(PREVIOUS_DIR)
+	$(QUIET)$(INFER_BIN) -o $(PREVIOUS_DIR) $(INFER_OPTIONS) -- clang -c src/*.c
+	$(QUIET)$(COPY) $(PREVIOUS_DIR)/reverse_analysis_callgraph.dot \
+	                                reverse_analysis_callgraph.dot.test

infer/tests/build_systems/incremental_analysis/changed_files.txt

@@ -0,0 +1 @@
+src/a_and_c.c

infer/tests/build_systems/incremental_analysis/costs_summary.json.exp

@@ -0,0 +1 @@
+{"top":{"current":0,"previous":0},"zero":{"current":0,"previous":0},"degrees":[]}

infer/tests/build_systems/incremental_analysis/reverse_analysis_callgraph.dot

@@ -0,0 +1,17 @@
+
+digraph callgraph {
+  N1 [ label = "a", flag = true ];
+  N1 -> N4 ;
+
+  N0 [ label = "b", flag = true ];
+  N0 -> N1 ;
+
+  N4 [ label = "main", flag = true ];
+
+  N2 [ label = "c", flag = true ];
+  N2 -> N0 ;
+
+  N3 [ label = "d", flag = false ];
+  N3 -> N2 ;
+
+}

infer/tests/build_systems/incremental_analysis/src_after/a_and_c.c

@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+#include "b_and_d.h"
+
+void a() { b(); }
+void c() { d(); }

infer/tests/build_systems/incremental_analysis/src_after/a_and_c.h

@@ -0,0 +1,8 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+void a();
+void c();

infer/tests/build_systems/incremental_analysis/src_after/b_and_d.c

@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+#include "a_and_c.h"
+
+void b() { c(); }
+void d() {}

infer/tests/build_systems/incremental_analysis/src_after/b_and_d.h

@@ -0,0 +1,8 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+void b();
+void d();

infer/tests/build_systems/incremental_analysis/src_after/main.c

@@ -0,0 +1,12 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+#include "a_and_c.h"
+
+int main() {
+  a();
+  return 0;
+}

infer/tests/build_systems/incremental_analysis/src_before/a_and_c.h

@@ -0,0 +1,8 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+void a();
+void c();

infer/tests/build_systems/incremental_analysis/src_before/b_and_d.c

@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+#include "a_and_c.h"
+
+void b() { c(); }
+void d() {}

infer/tests/build_systems/incremental_analysis/src_before/b_and_d.h

@@ -0,0 +1,8 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+void b();
+void d();

infer/tests/build_systems/incremental_analysis/src_before/main.c

@@ -0,0 +1,12 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+#include "a_and_c.h"
+
+int main() {
+  a();
+  return 0;
+}