Add additional test cases

[stockiNail]

This PR is adding test cases for all adapter methods.

[coveralls]

Pull Request Test Coverage Report for Build 2668786855

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+25.5%) to 98.182%

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Totals
Change from base Build 2085427674:	25.5%
Covered Lines:	31
Relevant Lines:	31

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 2675769966

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+25.5%) to 98.182%

---

Totals
Change from base Build 2085427674:	25.5%
Covered Lines:	31
Relevant Lines:	31

---

💛 - Coveralls

[stockiNail]

What	Before	After
Coverage
Change from base:	0.0%	25.5%
Covered Lines:	24	31
Relevant Lines:	31	31