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Domain Testing: Divide and Conquer - Testing Education

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Files of Type<br />

Variable Equivalence<br />

classes<br />

Files of<br />

Type<br />

Encoding<br />

Test cases<br />

(Best representatives)<br />

All text files A file:<br />

1) of text type<br />

All other file<br />

types<br />

Variable Equivalence<br />

classes<br />

Encoding<br />

All files being<br />

opened in<br />

ANSI<br />

encoding<br />

All files being<br />

opened in<br />

Unicode<br />

encoding<br />

All files being<br />

opened in<br />

Unicode big<br />

endian<br />

encoding<br />

All files being<br />

opened in<br />

UTF-8<br />

encoding<br />

A file:<br />

1) that is non-text type<br />

Test cases<br />

(Best representatives)<br />

Any file being opened in<br />

ANSI encoding.<br />

Any file being opened in<br />

Unicode encoding.<br />

Any file being opened in<br />

Unicode big endian<br />

encoding.<br />

Any file being opened in<br />

UTF-8 encoding.<br />

Risks<br />

1) Failure to open files of the<br />

text type correctly.<br />

1) Mish<strong>and</strong>ling of non-text<br />

type of files.<br />

Risks<br />

Failure to open files in the<br />

encoding format of ANSI<br />

correctly<br />

Failure to open files in the<br />

encoding format of Unicode<br />

correctly<br />

Failure to open files in the<br />

encoding format of Unicode<br />

big endian correctly<br />

Failure to open files in the<br />

encoding format of UTF-8<br />

correctly

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