Filesize method can return false but is not detected by Safe

[moufmouf]

See #52

[coveralls]

Pull Request Test Coverage Report for Build 114

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 3 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.3%) to 31.02%

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Files with Coverage Reduction	New Missed Lines	%
src/DocPage.php	3	90.41%

Totals
Change from base Build 112:	0.3%
Covered Lines:	152
Relevant Lines:	490

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 114

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 3 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.3%) to 31.02%

---

Files with Coverage Reduction	New Missed Lines	%
src/DocPage.php	3	90.41%

Totals
Change from base Build 112:	0.3%
Covered Lines:	152
Relevant Lines:	490

---

💛 - Coveralls