func (s *preallocSuite) TestFsAvailSpaceErrors(c *gc.C) {
tests := []struct {
desc string
output string
err string
}{{
desc: "result is non-numeric",
output: `Filesystem 1K-blocks Used Available Use% Mounted on
/dev/vda1 8124856 1365292 abc 18% /`,
err: `strconv.ParseInt: parsing "abc": invalid syntax`,
}, {
desc: "not enough lines",
output: "abc",
err: `could not determine available space on ""`,
}, {
desc: "not enough fields on second line",
output: "abc\ndef",
err: `could not determine available space on ""`,
}}
for i, test := range tests {
c.Logf("test %d: %s", i, test.desc)
testing.PatchExecutable(c, s, "df", "#!/bin/sh\ncat<<EOF\n"+test.output+"\nEOF")
_, err := mongo.FsAvailSpace("")
c.Check(err, gc.ErrorMatches, test.err)
}
}
func (s *preallocSuite) TestFsAvailSpace(c *gc.C) {
output := `Filesystem 1K-blocks Used Available Use% Mounted on
/dev/vda1 8124856 1365292 12345 18% /`
testing.PatchExecutable(c, s, "df", "#!/bin/sh\ncat<<EOF\n"+output+"\nEOF")
mb, err := mongo.FsAvailSpace("")
c.Assert(err, gc.IsNil)
c.Assert(mb, gc.Equals, float64(12345)/1024)
}