Index: lib/Fuzzer/test/dump_coverage.test
===================================================================
--- lib/Fuzzer/test/dump_coverage.test
+++ lib/Fuzzer/test/dump_coverage.test
@@ -1,14 +1,10 @@
-RUN: DIR=%t_workdir
-RUN: BUILD_DIR=$(pwd)
-RUN: rm -rf $DIR && mkdir -p $DIR && cd $DIR
-RUN: not $BUILD_DIR/LLVMFuzzer-NullDerefTest -dump_coverage=1 2>&1 | FileCheck %s
-RUN: ls *.sancov | xargs sancov -covered-functions $BUILD_DIR/LLVMFuzzer-NullDerefTest* | FileCheck %s --check-prefix=SANCOV
-RUN: $BUILD_DIR/LLVMFuzzer-DSOTest -dump_coverage=1 -runs=0 2>&1 | FileCheck %s --check-prefix=DSO
-RUN: not $BUILD_DIR/LLVMFuzzer-NullDerefTest -dump_coverage=0 2>&1 | FileCheck %s --check-prefix=NOCOV
-RUN: rm -rf $DIR
+RUN: rm -rf %t_workdir && mkdir -p %t_workdir
+RUN: env ASAN_OPTIONS=coverage_dir='"%t_workdir"' not LLVMFuzzer-NullDerefTest -dump_coverage=1 2>&1 | FileCheck %s
+RUN: xargs sancov -covered-functions LLVMFuzzer-NullDerefTest* %t_workdir/*.sancov | FileCheck %s --check-prefix=SANCOV
+RUN: LLVMFuzzer-DSOTest -dump_coverage=1 -runs=0 2>&1 | FileCheck %s --check-prefix=DSO
+RUN: not LLVMFuzzer-NullDerefTest -dump_coverage=0 2>&1 | FileCheck %s --check-prefix=NOCOV
 
-
-CHECK: SanitizerCoverage: ./LLVMFuzzer-NullDerefTest.{{.*}}.sancov {{.*}} PCs written
+CHECK: SanitizerCoverage: {{.*}}LLVMFuzzer-NullDerefTest.{{.*}}.sancov {{.*}} PCs written
 SANCOV: LLVMFuzzerTestOneInput
 
 DSO: SanitizerCoverage: ./LLVMFuzzer-DSOTest.{{.*}}.sancov {{.*}} PCs written