File: MissingVFSOverlay.test

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# Test that error messages from constructing ClangImporter
# are surfaced to the user.
# REQUIRES: swift

# RUN: rm -rf %t && mkdir %t && cd %t
# RUN: cp %p/../../API/lang/swift/deserialization_failure/Inputs/main.swift %t/main.swift
# RUN: echo "{ 'version': 0, 'roots': [] }" >%t/overlay.yaml
# RUN: %target-swiftc -g -Onone -Xfrontend -serialize-debugging-options %t/main.swift -o %t/a.out -Xcc -ivfsoverlay -Xcc %t/overlay.yaml
# RUN: rm %t/overlay.yaml
# RUN: %lldb %t/a.out -s %s -o quit 2>&1 | FileCheck %s

b main
run
# Create a SwiftASTContext, to induce error output.
expression 1

# The {{ }} avoids accidentally matching the input script!
# CHECK: warning:{{ }}{{.*}}Swift{{.*}}a.out
# CHECK: warning:{{ }}{{.*}}Ignoring missing VFS{{.*}}overlay.yaml