diff --git a/tests/test-convert-filemap.out b/tests/test-convert-filemap.out
new file mode 100644
--- /dev/null
+++ b/tests/test-convert-filemap.out
@@ -0,0 +1,154 @@
+@  8 "8: change foo" files: foo
+|
+o    7 "7: second merge; change bar" files: bar baz
+|\
+| o  6 "6: change foo baz" files: baz foo
+| |
+o |  5 "5: change bar baz quux" files: bar baz quux
+|/
+o    4 "4: first merge; change bar baz" files: bar baz
+|\
+| o  3 "3: change bar quux" files: bar quux
+| |
+o |  2 "2: change foo" files: foo
+|/
+o  1 "1: add bar quux; copy foo to copied" files: bar copied quux
+|
+o  0 "0: add foo baz dir/" files: baz dir/file dir/file2 foo
+
+% final file versions in this repo:
+9463f52fe115e377cf2878d4fc548117211063f2 644 bar
+94c1be4dfde2ee8d78db8bbfcf81210813307c3d 644 baz
+6ca237634e1f6bee1b6db94292fb44f092a25842 644 copied
+3e20847584beff41d7cd16136b7331ab3d754be0 644 dir/file
+75e6d3f8328f5f6ace6bf10b98df793416a09dca 644 dir/file2
+9a7b52012991e4873687192c3e17e61ba3e837a3 644 foo
+bc3eca3f47023a3e70ca0d8cc95a22a6827db19d 644 quux
+copied renamed from foo:2ed2a3912a0b24502043eae84ee4b279c18b90dd
+
+% foo: skip unwanted merges; use 1st parent in 1st merge, 2nd in 2nd
+o  3 "8: change foo" files: foo
+|
+o  2 "6: change foo baz" files: foo
+|
+o  1 "2: change foo" files: foo
+|
+o  0 "0: add foo baz dir/" files: foo
+
+9a7b52012991e4873687192c3e17e61ba3e837a3 644 foo
+% bar: merges are not merges anymore
+o  4 "7: second merge; change bar" files: bar
+|
+o  3 "5: change bar baz quux" files: bar
+|
+o  2 "4: first merge; change bar baz" files: bar
+|
+o  1 "3: change bar quux" files: bar
+|
+o  0 "1: add bar quux; copy foo to copied" files: bar
+
+9463f52fe115e377cf2878d4fc548117211063f2 644 bar
+% baz: 1st merge is not a merge anymore; 2nd still is
+o    4 "7: second merge; change bar" files: baz
+|\
+| o  3 "6: change foo baz" files: baz
+| |
+o |  2 "5: change bar baz quux" files: baz
+|/
+o  1 "4: first merge; change bar baz" files: baz
+|
+o  0 "0: add foo baz dir/" files: baz
+
+94c1be4dfde2ee8d78db8bbfcf81210813307c3d 644 baz
+% foo quux: we add additional merges when they are interesting
+o  8 "8: change foo" files: foo
+|
+o    7 "7: second merge; change bar" files:
+|\
+| o  6 "6: change foo baz" files: foo
+| |
+o |  5 "5: change bar baz quux" files: quux
+|/
+o    4 "4: first merge; change bar baz" files:
+|\
+| o  3 "3: change bar quux" files: quux
+| |
+o |  2 "2: change foo" files: foo
+|/
+o  1 "1: add bar quux; copy foo to copied" files: quux
+|
+o  0 "0: add foo baz dir/" files: foo
+
+9a7b52012991e4873687192c3e17e61ba3e837a3 644 foo
+bc3eca3f47023a3e70ca0d8cc95a22a6827db19d 644 quux
+% bar quux: partial conversion
+o  1 "3: change bar quux" files: bar quux
+|
+o  0 "1: add bar quux; copy foo to copied" files: bar quux
+
+b79105bedc55102f394e90a789c9c380117c1b4a 644 bar
+db0421cc6b685a458c8d86c7d5c004f94429ea23 644 quux
+% bar quux: complete the partial conversion
+o  4 "7: second merge; change bar" files: bar
+|
+o  3 "5: change bar baz quux" files: bar quux
+|
+o  2 "4: first merge; change bar baz" files: bar
+|
+o  1 "3: change bar quux" files: bar quux
+|
+o  0 "1: add bar quux; copy foo to copied" files: bar quux
+
+9463f52fe115e377cf2878d4fc548117211063f2 644 bar
+bc3eca3f47023a3e70ca0d8cc95a22a6827db19d 644 quux
+% foo: partial conversion
+o  0 "0: add foo baz dir/" files: foo
+
+2ed2a3912a0b24502043eae84ee4b279c18b90dd 644 foo
+% foo: complete the partial conversion
+o  3 "8: change foo" files: foo
+|
+o  2 "6: change foo baz" files: foo
+|
+o  1 "2: change foo" files: foo
+|
+o  0 "0: add foo baz dir/" files: foo
+
+9a7b52012991e4873687192c3e17e61ba3e837a3 644 foo
+% copied: copied file; source not included in new repo
+o  0 "1: add bar quux; copy foo to copied" files: copied
+
+2ed2a3912a0b24502043eae84ee4b279c18b90dd 644 copied
+copied not renamed
+% foo copied: copied file; source included in new repo
+o  4 "8: change foo" files: foo
+|
+o  3 "6: change foo baz" files: foo
+|
+o  2 "2: change foo" files: foo
+|
+o  1 "1: add bar quux; copy foo to copied" files: copied
+|
+o  0 "0: add foo baz dir/" files: foo
+
+6ca237634e1f6bee1b6db94292fb44f092a25842 644 copied
+9a7b52012991e4873687192c3e17e61ba3e837a3 644 foo
+copied renamed from foo:2ed2a3912a0b24502043eae84ee4b279c18b90dd
+o  4 "8: change foo" files: foo2
+|
+o  3 "6: change foo baz" files: foo2
+|
+o  2 "2: change foo" files: foo2
+|
+o  1 "1: add bar quux; copy foo to copied" files: copied2
+|
+o  0 "0: add foo baz dir/" files: dir2/file foo2
+
+e5e3d520be9be45937d0b06b004fadcd6c221fa2 644 copied2
+3e20847584beff41d7cd16136b7331ab3d754be0 644 dir2/file
+9a7b52012991e4873687192c3e17e61ba3e837a3 644 foo2
+copied2 renamed from foo2:2ed2a3912a0b24502043eae84ee4b279c18b90dd
+copied:
+foo
+copied2:
+foo