virshtest: Adapt numeric option arg handling tests from 'virsh-optparse'

Move the argument parsing tests excercising various numeric options
(except 'virsh event') from 'virsh-optparse' to 'virshtest'.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>

tests/virshtestdata/numeric-parsing.in

@@ -0,0 +1,43 @@
+echo Test a regular numeric option
+
+echo Non-numeric value
+cpu-stats test --start abc
+
+echo Numeric value with invalid suffix
+cpu-stats test --start 42WB
+
+echo Numeric value with valid suffix. Suffixes are not supported for
+echo regular numeric options, so this value is rejected
+cpu-stats test --start 42MB
+
+echo Numeric value bigger than INT_MAX
+cpu-stats test --start 2147483648
+
+echo Negative numeric value. The value is not valid for the command
+echo we are testing, but it has been parsed correctly
+cpu-stats test --start -1
+
+echo Test a scaled numeric option
+
+echo Non-numeric value
+setmaxmem test abc
+
+echo Numeric value with invalid suffix
+setmaxmem test 42WB
+
+echo Numeric value with valid suffix
+setmaxmem test 42MB --config
+
+echo Numeric value bigger than INT_MAX. No failure here because
+echo scaled numeric values are unsigned long long
+setmaxmem test 2147483648 --config
+
+echo Negative numeric value
+setmaxmem test -1
+
+echo Zero. The value is not valid for the command were testing, but
+echo it has been parsed correctly
+setmaxmem test 0
+
+echo Numeric value
+setmaxmem test 42 --config

tests/virshtestdata/numeric-parsing.out

@@ -0,0 +1,41 @@
+Test a regular numeric option
+Non-numeric value
+error: Numeric value 'abc' for <start> option is malformed or out of range
+
+Numeric value with invalid suffix
+error: Numeric value '42WB' for <start> option is malformed or out of range
+
+Numeric value with valid suffix. Suffixes are not supported for
+regular numeric options, so this value is rejected
+error: Numeric value '42MB' for <start> option is malformed or out of range
+
+Numeric value bigger than INT_MAX
+error: Numeric value '2147483648' for <start> option is malformed or out of range
+
+Negative numeric value. The value is not valid for the command
+we are testing, but it has been parsed correctly
+error: Invalid value for start CPU
+
+Test a scaled numeric option
+Non-numeric value
+error: Scaled numeric value 'abc' for <size> option is malformed or out of range
+
+Numeric value with invalid suffix
+error: Scaled numeric value '42WB' for <size> option is malformed or out of range
+error: invalid argument: unknown suffix 'WB'
+
+Numeric value with valid suffix
+
+Numeric value bigger than INT_MAX. No failure here because
+scaled numeric values are unsigned long long
+
+Negative numeric value
+error: Scaled numeric value '-1' for <size> option is malformed or out of range
+
+Zero. The value is not valid for the command were testing, but
+it has been parsed correctly
+error: Unable to change MaxMemorySize
+error: memory in virDomainSetMemoryFlags must not be zero
+
+Numeric value
+