Add unit tests to increase coverage

[justinsalamon]

Try to get close to 100% coverage for 0.1 release

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This change is 

[coveralls]

Coverage increased (+0.2%) to 66.786% when pulling 4b3e756f95ec20f0a1f501dde4b19d29d351dbbe on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+3.8%) to 70.377% when pulling a32ff87a292f72de95902a174e24524cfea14276 on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+15.8%) to 82.406% when pulling 09bafea91768b1d68b1d8e03120df52752636fa8 on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+15.8%) to 82.406% when pulling 09bafea91768b1d68b1d8e03120df52752636fa8 on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+15.8%) to 82.406% when pulling e06a749bb663055477a38c6f280a98ba901f58d0 on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+15.8%) to 82.406% when pulling eed87111a4b1d6d48fec952fabd1d6d792de7dce on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+15.8%) to 82.406% when pulling 50345cece45273df1b5a59d5205a4084dba47ab0 on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+15.8%) to 82.406% when pulling 4a8566b30afd0573cb31042f57ef2ef8860531da on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+15.8%) to 82.406% when pulling 58f8774a0449984152b91b396e4d3725f03ea58e on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+15.8%) to 82.406% when pulling 1e6f3180ddd081d1d1610e964a4ce730dbdfe3cb on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+15.8%) to 82.406% when pulling 225b6078c9e11124eb104641ad9aab366b575ef6 on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+15.9%) to 82.469% when pulling 2a916f116ed18f4b4a5aed01b6b635919b24d34c on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+4.4%) to 71.014% when pulling 8018efa70749fee7912e655f765b87173a326c65 on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+4.4%) to 71.014% when pulling 5d5d3f69f78515490696910d7a3e1fa6cb044901 on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+15.7%) to 82.342% when pulling 5d77f5bd68339be6b5e444fff09a8b4b8d331487 on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+21.3%) to 87.868% when pulling 483025e47c9dcc4d448dd7d73bfaa92f6a396827 on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+24.9%) to 91.508% when pulling af93acdb25c09c04a33da017a6563d8eb3b48da6 on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+24.9%) to 91.508% when pulling af93acdb25c09c04a33da017a6563d8eb3b48da6 on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+25.07%) to 91.681% when pulling 951b89b0d22f3acff4dd888a3c84626d40fba6ec on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+28.2%) to 94.801% when pulling fcc3f4364b9f467123bb568f27c0ac8a71d845ad on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+31.5%) to 98.094% when pulling 52dadb759e13a64c6f47948a9c28c7c42e173676 on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.

[coveralls]

Coverage increased (+33.4%) to 100.0% when pulling b69d4e77e17885502eee9c1e42bac734d45e044b on unittests into e0076d8e674b9eb2b8c888dfaab161ebf2ff4b62 on master.