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Overview
Comment:merge 8.5
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Timelines: family | ancestors | descendants | both | core-8-6-branch
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SHA3-256:318588076e602304630d56b12562336b7e315a62e9e14d13e3eda38a7455f43c
User & Date: sebres 2019-04-09 10:33:59
Context
2019-04-09
19:39
merge 8.5 check-in: 4cb9044dfa user: sebres tags: core-8-6-branch
10:33
merge 8.5 check-in: 318588076e user: sebres tags: core-8-6-branch
10:31
closes [1e5e25cf2b] - tests/cmdMZ.test: fixed NRT-related sleeps (and time-related corner cases and ... check-in: 84e29e7149 user: sebres tags: core-8-5-branch
09:18
Clarified some documentation check-in: 7fe28c341f user: dkf tags: core-8-6-branch
Changes
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Changes to tests/cmdMZ.test.

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    # if not UTF-8 aware, result is "a {} {} b qw\xe5 {} N wq"
    split "a\u4e4eb qw\u5e4e\x4e wq" " \u4e4e"
} "a b qw\u5e4eN wq"

# The tests for Tcl_StringObjCmd are in string.test
# The tests for Tcl_SubstObjCmd are in subst.test
# The tests for Tcl_SwitchObjCmd are in switch.test









test cmdMZ-5.1 {Tcl_TimeObjCmd: basic format of command} -body {
    time
} -returnCodes error -result {wrong # args: should be "time command ?count?"}
test cmdMZ-5.2 {Tcl_TimeObjCmd: basic format of command} -body {
    time a b c
} -returnCodes error -result {wrong # args: should be "time command ?count?"}
................................................................................
test cmdMZ-5.4 {Tcl_TimeObjCmd: nothing happens with negative iteration counts} {
    time bogusCmd -12456
} {0 microseconds per iteration}
test cmdMZ-5.5 {Tcl_TimeObjCmd: result format} -body {
    time {format 1}
} -match regexp -result {^\d+ microseconds per iteration}
test cmdMZ-5.6 {Tcl_TimeObjCmd: slower commands take longer} {
    expr {[lindex [time {after 2}] 0] < [lindex [time {after 1000}] 0]}
} 1
test cmdMZ-5.7 {Tcl_TimeObjCmd: errors generate right trace} {
    list [catch {time {error foo}} msg] $msg $::errorInfo
} {1 foo {foo
    while executing
"error foo"
    invoked from within
................................................................................
test cmdMZ-6.5a {Tcl_TimeRateObjCmd: result format and one iteration} {
    regexp {^\d+(?:\.\d+)? \ws/# 1 # \d+(?:\.\d+)? #/sec \d+(?:\.\d+)? nett-ms$} [timerate {} 0]
} 1
test cmdMZ-6.5b {Tcl_TimeRateObjCmd: result format without iterations} {
    regexp {^0 \ws/# 0 # 0 #/sec 0 nett-ms$} [timerate {} 0 0]
} 1
test cmdMZ-6.6 {Tcl_TimeRateObjCmd: slower commands take longer, but it remains almost the same time of measument} {
    set m1 [timerate {after 0} 20]
    set m2 [timerate {after 1} 20]
    list \
	[expr {[lindex $m1 0] < [lindex $m2 0]}] \
	[expr {[lindex $m1 0] < 100}] \
	[expr {[lindex $m2 0] >= 500}] \
	[expr {[lindex $m1 2] > 1000}] \
	[expr {[lindex $m2 2] <= 50}] \
	[expr {[lindex $m1 4] > 10000}] \
	[expr {[lindex $m2 4] < 10000}] \
	[expr {[lindex $m1 6] > 10 && [lindex $m1 6] < 50}] \
	[expr {[lindex $m2 6] > 10 && [lindex $m2 6] < 50}]
} [lrepeat 9 1]
test cmdMZ-6.7 {Tcl_TimeRateObjCmd: errors generate right trace} {
    list [catch {timerate {error foo} 1} msg] $msg $::errorInfo
} {1 foo {foo
    while executing
"error foo"
    invoked from within
................................................................................
	[expr {[lindex $m1 0] < 1000}] \
	[expr {[lindex $m1 2] == 1}] \
	[expr {[lindex $m1 4] > 1000}] \
	[expr {[lindex $m1 6] < 10}]
} {1 1 1 1}
test cmdMZ-6.9 {Tcl_TimeRateObjCmd: max count of iterations} {
    set m1 [timerate {} 1000 5];	# max-count wins
    set m2 [timerate {after 20} 1 5];	# max-time wins
    list [lindex $m1 2] [lindex $m2 2]
} {5 1}
test cmdMZ-6.10 {Tcl_TimeRateObjCmd: huge overhead cause 0us result} {
    set m1 [timerate -overhead 1e6 {after 10} 100 1]
    list \
	[expr {[lindex $m1 0] == 0.0}] \
	[expr {[lindex $m1 2] == 1}] \
	[expr {[lindex $m1 4] == 1000000}] \
	[expr {[lindex $m1 6] <= 0.001}]
} {1 1 1 1}







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    # if not UTF-8 aware, result is "a {} {} b qw\xe5 {} N wq"
    split "a\u4e4eb qw\u5e4e\x4e wq" " \u4e4e"
} "a b qw\u5e4eN wq"

# The tests for Tcl_StringObjCmd are in string.test
# The tests for Tcl_SubstObjCmd are in subst.test
# The tests for Tcl_SwitchObjCmd are in switch.test

# todo: rewrite this if monotonic clock is provided resp. command "after" 
# gets microsecond accuracy (RFE [fdfbd5e10] gets merged):
proc _nrt_sleep {msec} {
    set usec [expr {$msec * 1000}]
    set stime [clock microseconds]
    while {abs([clock microseconds] - $stime) < $usec} {after 0}
}

test cmdMZ-5.1 {Tcl_TimeObjCmd: basic format of command} -body {
    time
} -returnCodes error -result {wrong # args: should be "time command ?count?"}
test cmdMZ-5.2 {Tcl_TimeObjCmd: basic format of command} -body {
    time a b c
} -returnCodes error -result {wrong # args: should be "time command ?count?"}
................................................................................
test cmdMZ-5.4 {Tcl_TimeObjCmd: nothing happens with negative iteration counts} {
    time bogusCmd -12456
} {0 microseconds per iteration}
test cmdMZ-5.5 {Tcl_TimeObjCmd: result format} -body {
    time {format 1}
} -match regexp -result {^\d+ microseconds per iteration}
test cmdMZ-5.6 {Tcl_TimeObjCmd: slower commands take longer} {
    expr {[lindex [time {_nrt_sleep 1}] 0] < [lindex [time {_nrt_sleep 20}] 0]}
} 1
test cmdMZ-5.7 {Tcl_TimeObjCmd: errors generate right trace} {
    list [catch {time {error foo}} msg] $msg $::errorInfo
} {1 foo {foo
    while executing
"error foo"
    invoked from within
................................................................................
test cmdMZ-6.5a {Tcl_TimeRateObjCmd: result format and one iteration} {
    regexp {^\d+(?:\.\d+)? \ws/# 1 # \d+(?:\.\d+)? #/sec \d+(?:\.\d+)? nett-ms$} [timerate {} 0]
} 1
test cmdMZ-6.5b {Tcl_TimeRateObjCmd: result format without iterations} {
    regexp {^0 \ws/# 0 # 0 #/sec 0 nett-ms$} [timerate {} 0 0]
} 1
test cmdMZ-6.6 {Tcl_TimeRateObjCmd: slower commands take longer, but it remains almost the same time of measument} {
    set m1 [timerate {_nrt_sleep 0} 20]
    set m2 [timerate {_nrt_sleep 0.2} 20]
    list \
	[expr {[lindex $m1 0] < [lindex $m2 0]}] \
	[expr {[lindex $m1 0] < 100}] \
	[expr {[lindex $m2 0] > 100}] \
	[expr {[lindex $m1 2] > 1000}] \
	[expr {[lindex $m2 2] < 1000}] \
	[expr {[lindex $m1 4] > 50000}] \
	[expr {[lindex $m2 4] < 50000}] \
	[expr {[lindex $m1 6] > 10 && [lindex $m1 6] < 100}] \
	[expr {[lindex $m2 6] > 10 && [lindex $m2 6] < 100}]
} [lrepeat 9 1]
test cmdMZ-6.7 {Tcl_TimeRateObjCmd: errors generate right trace} {
    list [catch {timerate {error foo} 1} msg] $msg $::errorInfo
} {1 foo {foo
    while executing
"error foo"
    invoked from within
................................................................................
	[expr {[lindex $m1 0] < 1000}] \
	[expr {[lindex $m1 2] == 1}] \
	[expr {[lindex $m1 4] > 1000}] \
	[expr {[lindex $m1 6] < 10}]
} {1 1 1 1}
test cmdMZ-6.9 {Tcl_TimeRateObjCmd: max count of iterations} {
    set m1 [timerate {} 1000 5];	# max-count wins
    set m2 [timerate {_nrt_sleep 20} 1 5];	# max-time wins
    list [lindex $m1 2] [lindex $m2 2]
} {5 1}
test cmdMZ-6.10 {Tcl_TimeRateObjCmd: huge overhead cause 0us result} {
    set m1 [timerate -overhead 1e6 {_nrt_sleep 10} 100 1]
    list \
	[expr {[lindex $m1 0] == 0.0}] \
	[expr {[lindex $m1 2] == 1}] \
	[expr {[lindex $m1 4] == 1000000}] \
	[expr {[lindex $m1 6] <= 0.001}]
} {1 1 1 1}