Improving coverage for ConcreteExpansionEigenstrainBase

[jain651]

ref #272

[moosebuild]

Job Test on 5d1534a wanted to post the following:

View the site here

This comment will be updated on new commits.

[moosebuild]

Job Coverage on 5d1534a wanted to post the following:

Coverage

	70e9d6	#280 5d1534
	Total	Total	+/-	New
Rate	93.88%	95.92%	+2.04%	100.00%
Hits	1274	1294	+20	7
Misses	83	55	-28	0

Diff coverage report

Full coverage report

This comment will be updated on new commits.

[moosebuild]

Job Precheck on c4294e9 wanted to post the following:

Your code requires style changes.

A patch was auto generated and copied here
You can directly apply the patch by running, in the top level of your repository:

curl -s https://mooseframework.inl.gov/blackbear/docs/PRs/280/style.patch | git apply -v

Alternatively, with your repository up to date and in the top level of your repository:

git clang-format 0ca9e2ecd9b5d48132775c78b5be7111aa2d0570