1; This testcase checks to make sure that we can write PDB files.  It
2; works by first reading a known good PDB file and dumping the contents
3; to YAML.  Then it tries to reconstruct as much of the original PDB as
4; possible, although depending on what flags are specified when generating
5; the YAML, the PDB might be missing data required for any standard tool
6; to recognize it.  Finally, it dumps the same set of fields from the newly
7; constructed PDB to YAML, and verifies that the YAML is the same as the
8; original YAML generated from the good PDB.  Note that when doing the
9; final comparison it must dump the original and the new pdb without any
10; stream metadata, since the layout of the MSF file might be different
11; (for example if we don't write the entire stream)
12;
13; RUN: llvm-pdbdump pdb2yaml -stream-metadata -stream-directory -pdb-stream -tpi-stream %p/Inputs/empty.pdb > %t.1
14; RUN: llvm-pdbdump yaml2pdb -pdb=%t.2 %t.1
15; RUN: llvm-pdbdump pdb2yaml -pdb-stream -tpi-stream -no-file-headers %p/Inputs/empty.pdb > %t.3
16; RUN: llvm-pdbdump pdb2yaml -pdb-stream -tpi-stream -no-file-headers %t.2 > %t.4
17; RUN: diff %t.3 %t.4
18