Changes tests to init LLVM stack tracing (#1215)

Co-authored-by: Chandler Carruth <chandlerc@gmail.com>

common/BUILD

@@ -18,7 +18,7 @@ cc_test(
     srcs = ["check_test.cpp"],
     deps = [
         ":check",
-        "@com_google_googletest//:gtest_main",
+        "//common:gtest_main",
     ],
 )
 
@@ -37,7 +37,23 @@ cc_test(
     srcs = ["error_test.cpp"],
     deps = [
         ":error",
-        "@com_google_googletest//:gtest_main",
+        "//common:gtest_main",
+    ],
+)
+
+# This does extra initialization on top of googletest's gtest_main in order to
+# provide stack traces on unexpected exits, because we normally rely on LLVM
+# code for that.
+#
+# This replaces "@com_google_googletest//:gtest_main";
+# "@com_google_googletest//:gtest" should still be used directly.
+cc_library(
+    name = "gtest_main",
+    testonly = 1,
+    srcs = ["gtest_main.cpp"],
+    deps = [
+        "@com_google_googletest//:gtest",
+        "@llvm-project//llvm:Support",
     ],
 )
 
@@ -51,7 +67,7 @@ cc_test(
     srcs = ["indirect_value_test.cpp"],
     deps = [
         ":indirect_value",
-        "@com_google_googletest//:gtest_main",
+        "//common:gtest_main",
     ],
 )
 
@@ -85,7 +101,7 @@ cc_test(
     srcs = ["string_helpers_test.cpp"],
     deps = [
         ":string_helpers",
-        "@com_google_googletest//:gtest_main",
+        "//common:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )

common/gtest_main.cpp

@@ -0,0 +1,17 @@
+// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
+// Exceptions. See /LICENSE for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+#include <gtest/gtest.h>
+
+#include "llvm/Support/InitLLVM.h"
+
+auto main(int argc, char** argv) -> int {
+  testing::InitGoogleTest(&argc, argv);
+  llvm::setBugReportMsg(
+      "Please report issues to "
+      "https://github.com/carbon-language/carbon-lang/issues and include the "
+      "crash backtrace.\n");
+  llvm::InitLLVM init_llvm(argc, argv);
+  return RUN_ALL_TESTS();
+}

executable_semantics/ast/BUILD

@@ -64,8 +64,8 @@ cc_test(
         ":expression",
         ":pattern",
         ":statement",
+        "//common:gtest_main",
         "//executable_semantics/common:arena",
-        "@com_google_googletest//:gtest_main",
     ],
 )
 
@@ -144,8 +144,8 @@ cc_test(
     deps = [
         ":expression",
         ":paren_contents",
+        "//common:gtest_main",
         "//executable_semantics/common:arena",
-        "@com_google_googletest//:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )
@@ -188,8 +188,8 @@ cc_test(
         ":expression",
         ":paren_contents",
         ":pattern",
+        "//common:gtest_main",
         "//executable_semantics/common:arena",
-        "@com_google_googletest//:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )

executable_semantics/common/BUILD

@@ -27,7 +27,7 @@ cc_test(
     deps = [
         ":error_builders",
         ":source_location",
-        "@com_google_googletest//:gtest_main",
+        "//common:gtest_main",
     ],
 )
 

executable_semantics/syntax/BUILD

@@ -20,8 +20,8 @@ cc_test(
     srcs = ["parse_test.cpp"],
     deps = [
         ":syntax",
+        "//common:gtest_main",
         "//executable_semantics/common:arena",
-        "@com_google_googletest//:gtest_main",
     ],
 )
 
@@ -150,7 +150,7 @@ cc_test(
     deps = [
         ":parse_test_matchers",
         ":syntax",
+        "//common:gtest_main",
         "//executable_semantics/ast:ast_test_matchers",
-        "@com_google_googletest//:gtest_main",
     ],
 )

migrate_cpp/cpp_refactoring/BUILD

@@ -62,7 +62,7 @@ cc_test(
     deps = [
         ":fn_inserter",
         ":matcher_test_base",
-        "@com_google_googletest//:gtest_main",
+        "//common:gtest_main",
         "@llvm-project//clang:tooling",
     ],
 )
@@ -83,7 +83,7 @@ cc_test(
     deps = [
         ":for_range",
         ":matcher_test_base",
-        "@com_google_googletest//:gtest_main",
+        "//common:gtest_main",
         "@llvm-project//clang:tooling",
     ],
 )
@@ -105,7 +105,7 @@ cc_test(
     deps = [
         ":matcher_test_base",
         ":var_decl",
-        "@com_google_googletest//:gtest_main",
+        "//common:gtest_main",
         "@llvm-project//clang:tooling",
     ],
 )

toolchain/diagnostics/BUILD

@@ -20,7 +20,7 @@ cc_test(
     deps = [
         ":diagnostic_emitter",
         ":mocks",
-        "@com_google_googletest//:gtest_main",
+        "//common:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )
@@ -44,7 +44,7 @@ cc_test(
     srcs = ["diagnostic_kind_test.cpp"],
     deps = [
         ":diagnostic_kind",
-        "@com_google_googletest//:gtest_main",
+        "//common:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )
@@ -76,7 +76,7 @@ cc_test(
         ":diagnostic_emitter",
         ":mocks",
         ":sorting_diagnostic_consumer",
-        "@com_google_googletest//:gtest_main",
+        "//common:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )

toolchain/driver/BUILD

@@ -27,10 +27,10 @@ cc_test(
     srcs = ["driver_test.cpp"],
     deps = [
         ":driver",
+        "//common:gtest_main",
         "//toolchain/common:yaml_test_helpers",
         "//toolchain/diagnostics:diagnostic_emitter",
         "//toolchain/lexer:tokenized_buffer_test_helpers",
-        "@com_google_googletest//:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )

toolchain/lexer/BUILD

@@ -24,7 +24,7 @@ cc_test(
     srcs = ["token_kind_test.cpp"],
     deps = [
         ":token_kind",
-        "@com_google_googletest//:gtest_main",
+        "//common:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )
@@ -91,9 +91,9 @@ cc_test(
         ":numeric_literal",
         ":test_helpers",
         "//common:check",
+        "//common:gtest_main",
         "//common:ostream",
         "//toolchain/diagnostics:diagnostic_emitter",
-        "@com_google_googletest//:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )
@@ -142,9 +142,9 @@ cc_test(
         ":string_literal",
         ":test_helpers",
         "//common:check",
+        "//common:gtest_main",
         "//common:ostream",
         "//toolchain/diagnostics:diagnostic_emitter",
-        "@com_google_googletest//:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )
@@ -201,10 +201,10 @@ cc_test(
     deps = [
         ":tokenized_buffer",
         ":tokenized_buffer_test_helpers",
+        "//common:gtest_main",
         "//toolchain/common:yaml_test_helpers",
         "//toolchain/diagnostics:diagnostic_emitter",
         "//toolchain/diagnostics:mocks",
-        "@com_google_googletest//:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )

toolchain/parser/BUILD

@@ -20,7 +20,7 @@ cc_test(
     srcs = ["parse_node_kind_test.cpp"],
     deps = [
         ":parse_node_kind",
-        "@com_google_googletest//:gtest_main",
+        "//common:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )
@@ -67,12 +67,12 @@ cc_test(
         ":parse_node_kind",
         ":parse_test_helpers",
         ":parse_tree",
+        "//common:gtest_main",
         "//common:ostream",
         "//toolchain/common:yaml_test_helpers",
         "//toolchain/diagnostics:diagnostic_emitter",
         "//toolchain/diagnostics:mocks",
         "//toolchain/lexer:tokenized_buffer",
-        "@com_google_googletest//:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )
@@ -109,7 +109,7 @@ cc_test(
     srcs = ["precedence_test.cpp"],
     deps = [
         ":precedence",
+        "//common:gtest_main",
         "//toolchain/lexer:token_kind",
-        "@com_google_googletest//:gtest_main",
     ],
 )

toolchain/semantics/BUILD

@@ -43,11 +43,11 @@ cc_test(
     srcs = ["semantics_ir_factory_test.cpp"],
     deps = [
         ":semantics_ir_factory",
+        "//common:gtest_main",
         "//toolchain/diagnostics:mocks",
         "//toolchain/lexer:tokenized_buffer",
         "//toolchain/parser:parse_tree",
         "//toolchain/source:source_buffer",
-        "@com_google_googletest//:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )

toolchain/source/BUILD

@@ -20,7 +20,7 @@ cc_test(
     srcs = ["source_buffer_test.cpp"],
     deps = [
         ":source_buffer",
-        "@com_google_googletest//:gtest_main",
+        "//common:gtest_main",
         "@llvm-project//llvm:Support",
     ],
 )