Add a parser for gcov intermediate file format.

This change comes as a preparation for using gcov for Bazel C++ coverage
instead of lcov.

See documentation of gcov intermediate format at https://gcc.gnu.org/onlinedocs/gcc/Invoking-Gcov.html#Invoking-Gcov
under --intermediate-format.

Change-Id: I6cd2df8b3a6611b187a2b0c161b14388413bc670
PiperOrigin-RevId: 206940660

1 files changed, 4 insertions, 2 deletions

diff --git a/tools/test/LcovMerger/javatests/com/google/devtools/lcovmerger/MainTest.java b/tools/test/LcovMerger/javatests/com/google/devtools/lcovmerger/MainTest.java
index a6b99fb12e..e8a6c754bf 100644
--- a/tools/test/LcovMerger/javatests/com/google/devtools/lcovmerger/MainTest.java
+++ b/tools/test/LcovMerger/javatests/com/google/devtools/lcovmerger/MainTest.java
@@ -15,6 +15,7 @@
 package com.google.devtools.lcovmerger;
 
 import static com.google.common.truth.Truth.assertThat;
+import static com.google.devtools.lcovmerger.Constants.TRACEFILE_EXTENSION;
 
 import java.io.File;
 import java.io.IOException;
@@ -41,7 +42,7 @@ public class MainTest {
 
   @Test
   public void testMainEmptyCoverageDir() {
-    assertThat(Main.getLcovTracefilesFromDir(coverageDir.toAbsolutePath().toString())).isEmpty();
+    assertThat(Main.getCoverageFilesInDir(coverageDir.toAbsolutePath().toString())).isEmpty();
   }
 
   @Test
@@ -52,7 +53,8 @@ public class MainTest {
     Files.createTempFile(ccCoverageDir, "tracefile1", ".dat");
     Files.createTempFile(javaCoverageDir, "tracefile2", ".dat");
 
-    List<File> tracefiles = Main.getLcovTracefilesFromDir(coverageDir.toAbsolutePath().toString());
+    List<File> coverageFiles = Main.getCoverageFilesInDir(coverageDir.toAbsolutePath().toString());
+    List<File> tracefiles = Main.getFilesWithExtension(coverageFiles, TRACEFILE_EXTENSION);
     assertThat(tracefiles).hasSize(2);
   }
 }