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Overview
Comment:Add tests to exercise almost every line of TclStringReplace(). The one line not being exercised is the "return NULL" on TclStringCatObjv() failure. Coverage checked in an ad-hoc way by putting a breakpoint at the start of every basic block, then confirming each breakpoint is hit at least once when running string.test.
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SHA1: eb2821be09e07a20408d6a04e41cdfaf54508100
User & Date: andy 2017-08-20 19:57:43
Context
2017-08-20
20:11
Add test cleanup check-in: 5f8c346dfb user: andy tags: amg-string-insert
19:57
Add tests to exercise almost every line of TclStringReplace(). The one line not being exercised is ... check-in: eb2821be09 user: andy tags: amg-string-insert
19:55
Tweak string index boundary conditionals for tiny performance improvement and to make existing tests... check-in: 025ea6e5be user: andy tags: amg-string-insert
Changes
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Changes to tests/string.test.

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    package require tcltest
    namespace import -force ::tcltest::*
}

::tcltest::loadTestedCommands
catch [list package require -exact Tcltest [info patchlevel]]







# Some tests require the testobj command

testConstraint testobj [expr {[info commands testobj] != {}}]
testConstraint testindexobj [expr {[info commands testindexobj] != {}}]

# Used for constraining memory leak tests
testConstraint memory [llength [info commands memory]]







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    package require tcltest
    namespace import -force ::tcltest::*
}

::tcltest::loadTestedCommands
catch [list package require -exact Tcltest [info patchlevel]]

# Helper commands to test various optimizations, code paths, and special cases.
proc makeByteArray {s} {binary format a* $s}
proc makeUnicode {s} {lindex [regexp -inline .* $s] 0}
proc makeList {args} {return $args}
proc makeShared {s} {uplevel 1 [list lappend copy $s]; return $s}

# Some tests require the testobj command

testConstraint testobj [expr {[info commands testobj] != {}}]
testConstraint testindexobj [expr {[info commands testindexobj] != {}}]

# Used for constraining memory leak tests
testConstraint memory [llength [info commands memory]]
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} {abcdefghijklmnop}
test string-14.18 {string replace} {
    string replace abcdefghijklmnop 10 9 XXX
} {abcdefghijklmnop}
test string-14.18.1 {string replace non-bytecode} {
    {*}[list string replace] abcdefghijklmnop 10 9 XXX
} {abcdefghijklmnop}









test string-15.1 {string tolower too few args} {
    list [catch {string tolower} msg] $msg
} {1 {wrong # args: should be "string tolower string ?first? ?last?"}}
test string-15.2 {string tolower bad args} {
    list [catch {string tolower a b} msg] $msg
} {1 {bad index "b": must be integer?[+-]integer? or end?[+-]integer?}}







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} {abcdefghijklmnop}
test string-14.18 {string replace} {
    string replace abcdefghijklmnop 10 9 XXX
} {abcdefghijklmnop}
test string-14.18.1 {string replace non-bytecode} {
    {*}[list string replace] abcdefghijklmnop 10 9 XXX
} {abcdefghijklmnop}
test string-14.19 {string replace} {
    string replace [makeByteArray abcdefghijklmnop] end-10 end-2\
	    [makeByteArray NEW]
} {abcdeNEWop}
test string-14.19.1 {string replace non-bytecode} {
    {*}[list tcl::string::replace] [makeByteArray abcdefghijklmnop]\
	    end-10 end-2 [makeByteArray NEW]
} {abcdeNEWop}

test string-15.1 {string tolower too few args} {
    list [catch {string tolower} msg] $msg
} {1 {wrong # args: should be "string tolower string ?first? ?last?"}}
test string-15.2 {string tolower bad args} {
    list [catch {string tolower a b} msg] $msg
} {1 {bad index "b": must be integer?[+-]integer? or end?[+-]integer?}}
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test string-30.10 {string insert, negative index} {
    tcl::string::insert 0123 -1 _
} _0123
test string-30.11 {string insert, index beyond end} {
    tcl::string::insert 0123 5 _
} 0123_
test string-30.12 {string insert, start of string, pure byte array} {
    tcl::string::insert [binary format a* 0123] 0 [binary format a* _]
} _0123
test string-30.13 {string insert, middle of string, pure byte array} {
    tcl::string::insert [binary format a* 0123] 2 [binary format a* _]
} 01_23
test string-30.14 {string insert, end of string, pure byte array} {































    tcl::string::insert [binary format a* 0123] 4 [binary format a* _]

} 0123_




# cleanup
rename MemStress {}
catch {rename foo {}}
::tcltest::cleanupTests
return

# Local Variables:
# mode: tcl
# End:







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test string-30.10 {string insert, negative index} {
    tcl::string::insert 0123 -1 _
} _0123
test string-30.11 {string insert, index beyond end} {
    tcl::string::insert 0123 5 _
} 0123_
test string-30.12 {string insert, start of string, pure byte array} {
    tcl::string::insert [makeByteArray 0123] 0 [makeByteArray _]
} _0123
test string-30.13 {string insert, middle of string, pure byte array} {
    tcl::string::insert [makeByteArray 0123] 2 [makeByteArray _]
} 01_23
test string-30.14 {string insert, end of string, pure byte array} {
    tcl::string::insert [makeByteArray 0123] 4 [makeByteArray _]
} 0123_
test string-30.15 {string insert, pure byte array, neither shared} {
    tcl::string::insert [makeByteArray 0123] 2 [makeByteArray _]
} 01_23
test string-30.16 {string insert, pure byte array, first shared} {
    tcl::string::insert [makeShared [makeByteArray 0123]] 2 [makeByteArray _]
} 01_23
test string-30.17 {string insert, pure byte array, second shared} {
    tcl::string::insert [makeByteArray 0123] 2 [makeShared [makeByteArray _]]
} 01_23
test string-30.18 {string insert, pure byte array, both shared} {
    tcl::string::insert [makeShared [makeByteArray 0123]] 2\
	    [makeShared [makeByteArray _]]
} 01_23
test string-30.19 {string insert, start of string, pure Unicode} {
    tcl::string::insert [makeUnicode 0123] 0 [makeUnicode _]
} _0123
test string-30.20 {string insert, middle of string, pure Unicode} {
    tcl::string::insert [makeUnicode 0123] 2 [makeUnicode _]
} 01_23
test string-30.21 {string insert, end of string, pure Unicode} {
    tcl::string::insert [makeUnicode 0123] 4 [makeUnicode _]
} 0123_
test string-30.22 {string insert, start of string, pure Unicode, first shared} {
    tcl::string::insert [makeShared [makeUnicode 0123]] 0 [makeUnicode _]
} _0123
test string-30.23 {string insert, middle of string, pure Unicode, 2nd shared} {
    tcl::string::insert [makeUnicode 0123] 2 [makeShared [makeUnicode _]]
} 01_23
test string-30.24 {string insert, end of string, pure Unicode, both shared} {
    tcl::string::insert [makeShared [makeUnicode 0123]] 4\
	    [makeShared [makeUnicode _]]
} 0123_
test string-30.25 {string insert, neither byte array nor Unicode} {
    tcl::string::insert [makeList a b c] 1 zzzzzz
} {azzzzzz b c}

# cleanup
rename MemStress {}
catch {rename foo {}}
::tcltest::cleanupTests
return

# Local Variables:
# mode: tcl
# End: