Merge pull request #32443 from keith/ks/improve-coverage-test-naming

Improve coverage test naming

Author: compnerd

test/Profiler/coverage_relative_path.swift

@@ -1,16 +1,15 @@
-// %s expands to an absolute path, so to test relative paths we need to create a
-// clean directory, put the source there, and cd into it.
+// To make sure this test is resilient to directory changes, we create nested directories inside of the
+// temporary test directory and assert those exist, or don't exist, in the emitted ir
+//
 // RUN: rm -rf %t
-// RUN: mkdir -p %t/foo/bar/baz
-// RUN: echo "func coverage() {}" > %t/foo/bar/baz/coverage_relative_path.swift
-// RUN: cd %t/foo/bar
+// RUN: mkdir -p %t/root/nested
+// RUN: echo "func coverage() {}" > %t/root/nested/coverage_relative_path.swift
+// RUN: cd %t/root
 
-// RUN: %target-swift-frontend -profile-generate -profile-coverage-mapping -Xllvm -enable-name-compression=false -emit-ir %/t/foo/bar/baz/coverage_relative_path.swift | %FileCheck -check-prefix=ABSOLUTE %s
+// RUN: %target-swift-frontend -profile-generate -profile-coverage-mapping -Xllvm -enable-name-compression=false -emit-ir nested/coverage_relative_path.swift | %FileCheck -check-prefix=ABSOLUTE %s
 //
-// ABSOLUTE: @__llvm_coverage_mapping = {{.*"\\01.*foo.*bar.*baz.*coverage_relative_path\.swift}}
+// ABSOLUTE: @__llvm_coverage_mapping = {{.*"\\01.*root.*nested.*coverage_relative_path\.swift}}
 
-// RUN: %target-swift-frontend -profile-generate -profile-coverage-mapping -Xllvm -enable-name-compression=false -coverage-prefix-map %/t/foo/bar=. -emit-ir %/t/foo/bar/baz/coverage_relative_path.swift | %FileCheck -check-prefix=RELATIVE %s
+// RUN: %target-swift-frontend -profile-generate -profile-coverage-mapping -Xllvm -enable-name-compression=false -coverage-prefix-map %/t/root=. -emit-ir %/t/root/nested/coverage_relative_path.swift | %FileCheck -check-prefix=RELATIVE %s
 //
-// RELATIVE: @__llvm_coverage_mapping = {{.*"\\01[^/]*}}.{{/|\\}}baz{{.*coverage_relative_path\.swift}}
-
-func coverage() {}
+// RELATIVE: @__llvm_coverage_mapping = {{.*"\\01[^/]*}}.{{/|\\}}nested{{.*coverage_relative_path\.swift}}