path: root/tests/coverage.test

# various tests to improve code coverage

source [file dirname [info script]]/testing.tcl

constraint cmd getref
constraint cmd rand
constraint cmd namespace

constraint cmd {debug invstr}

test dupobj-1 {duplicate script object} {
	set y {expr 2}
	# make y a script
	eval $y
	# Now treat it as a list that needs duplicating
	lset y 0 abc
	set y
} {abc 2}

test dupobj-2 {duplicate expr object} {
	set y {2 + 1}
	# make y an expression
	expr $y
	# Now treat it as a list that needs duplicating
	lset y 0 abc
	set y
} {abc + 1}

test dupobj-3 {duplicate interpolated object} namespace {
	set w 4
	set y def($w)
	# Now treat it as a namespace object that needs duplicating
	namespace eval $y {}
	apply [list x {set x 1} $y] x
} {1}

test dupobj-4 {duplicate dict subst object} namespace {
	# make y a dict subst
	set def(4) 5
	set y def(4)
	incr $y
	# Now treat it as a namespace object that needs duplicating
	namespace eval $y {}
	apply [list x {set x 1} $y] x
} {1}

test dupobj-5 {duplicate object with no string rep} namespace {
	# A sorted list has no string rep
	set y [lsort {abc def}]
	# Now treat it as a namespace object that needs duplicating
	namespace eval $y {}
	apply [list x {set x 1} $y] x
} {1}

test dupobj-6 {duplicate object with no type dup proc} namespace {
	set x 6
	incr x
	# x is now an int, an object with no dup proc
	# using as a namespace requires the object to be duplicated
	namespace eval $x {
		proc a {} {}
		rename a ""
	}
} {}

test dupobj-7 {duplicate scan obj} namespace {
	set x "%d %d"
	scan "1 4" $x y z
	# Now treat it as a namespace object that needs duplicating
	namespace eval $x {}
	apply [list x {set x 1} $x] x
} {1}


test script-1 {convert empty object to script} {
	set empty [foreach a {} {}]
	eval $empty
} {}

test ref-1 {treat something as a reference} getref {
	set ref [ref abc tag]
	getref $ref
} {abc}

test ref-2 {getref invalid reference} -constraints getref -body {
	getref "<reference.<tag____>.99999999999999000000>"
} -returnCodes error -match glob -result {invalid reference id *}

test ref-3 {getref invalid reference tag} -constraints getref -body {
	getref "<reference.<tag!%(*>.99999999999999000000>"
} -returnCodes error -match glob -result {expected reference but got "<reference.<tag!%(*>.99999999999999000000>"}

test ref-4 {finalize} getref {
	finalize $ref
} {}

test ref-5 {finalize} getref {
	finalize $ref cleanup
	finalize $ref cleanup2
	finalize $ref
} {cleanup2}

test ref-6 {finalize get invalid reference} -constraints getref -body {
	finalize "<reference.<tag____>.99999999999999000000>"
} -returnCodes error -match glob -result {invalid reference id *}

test ref-7 {finalize set invalid reference} -constraints getref -body {
	finalize "<reference.<tag____>.99999999999999000000>" cleanup
} -returnCodes error -match glob -result {invalid reference id *}

test collect-1 {recursive collect} getref {
	set ref2 [ref dummy cleanup2]
	unset ref2
	proc cleanup2 {ref value} {
		# Try to call collect
		stdout puts "in cleanup2: ref=$ref, value=$value"
		if {[collect]} {
			error "Should return 0"
		}
	}
	collect
} {1}

test scan-1 {update string of scan obj} debug-invstr {
	set x "%d %d"
	scan "1 4" $x y z
	debug invstr $x
	# x is now of scanfmt type with no string rep
	set x
} {%d %d}

# It is too hard to do this one without debug invstr
test index-1 {update string of index} debug-invstr {
	set x end-1
	lindex {a b c} $x
	debug invstr $x
	# x is now of index type with no string rep
	set x
} {end-1}

test index-2 {update string of index} debug-invstr {
	set x end
	lindex {a b c} $x
	debug invstr $x
	# x is now of index type with no string rep
	set x
} {end}

test index-3 {update string of index} debug-invstr {
	set x 2
	lindex {a b c} $x
	debug invstr $x
	# x is now of index type with no string rep
	set x
} {2}

test index-4 {index > INT_MAX} debug-invstr {
	set x 99999999999
	incr x
	# x is now of int type > INT_MAX
	lindex {a b c} $x
} {}

test index-5 {update string of index} debug-invstr {
	set x -1
	lindex {a b c} $x
	debug invstr $x
	# x is now of index type with no string rep
	set x
} {-2147483647}

test cmd-1 {standard -commands} jim {
	expr {"length" in [string -commands]}
} {1}

test rand-1 {rand} -constraints rand -body {
	rand 1 2 3
} -returnCodes error -result {wrong # args: should be "rand ?min? max"}

test rand-2 {rand} -constraints rand -body {
	rand foo
} -returnCodes error -match glob -result {expected integer *but got "foo"}

test rand-3 {rand} -constraints rand -body {
	rand 2 bar
} -returnCodes error -match glob -result {expected integer *but got "bar"}

test rand-4 {rand} rand {
	string is integer [rand]
} {1}

test rand-5 {srand} rand {
	set x [expr {srand(123)}]
	if {$x >= 0 && $x <= 1} {
		return 1
	} else {
		return 0
	}
} {1}

test lreverse-1 {lreverse} -body {
	lreverse
} -returnCodes error -result {wrong # args: should be "lreverse list"}

test divide-1 {expr} -constraints jim -body {
	/ 2 0
} -returnCodes error -result {Division by zero}

test variable-1 {upvar, name with embedded null} -constraints jim -body {
	proc a {} {
		upvar var\0null abc
		incr abc
	}
	set var\0null 2
	a
} -returnCodes ok -result {3}

test variable-2 {upvar to global name} {
	set ::globalvar 1
	proc a {} {
		upvar ::globalvar abc
		incr abc
	}
	a
} {2}

test unknown-1 {recursive unknown} -body {
	# unknown will call itself a maximum of 50 times before simply returning an error
	proc unknown {args} {
		nonexistent 3
	}
	nonexistent 4
} -returnCodes error -result {invalid command name "nonexistent"} -cleanup {
	rename unknown {}
}

test interpolate-1 {interpolate} -body {
	unset -nocomplain a
	for {set i 0} {$i < 10} {incr i} {
		set a($i) $i
	}
	set x "$a(0)$a(1)$a(2)$a(3)$a(4)$a(5)$a(6)$a(7)$a(8)$a(9)$nonexistent"
	set x
} -returnCodes error -result {can't read "nonexistent": no such variable}


testreport