Tests infrastructure for plume-models (#302)

First step for testing `plume-models`. I only added one test for the moment, but we should add more in future PRs.

.travis.yml

@@ -1,10 +1,47 @@
 language: rust
-env:
-  matrix:
-  - MIGRATION_DIR=migrations/postgres FEATURES=postgres DATABASE_URL=postgres://postgres@localhost/plume
-  - MIGRATION_DIR=migrations/sqlite   FEATURES=sqlite   DATABASE_URL=plume.sqlite3
 rust:
-  - nightly
+  - nightly-2018-07-17
 cache: cargo
-script:
- - cargo build --no-default-features --features="${FEATURES}"
+sudo: true
+dist: trusty
+
+addons:
+  apt:
+    packages:
+      - libcurl4-openssl-dev
+      - libelf-dev
+      - libdw-dev
+      - cmake
+      - gcc
+      - binutils-dev
+      - zlib1g-dev
+      - libiberty-dev
+jobs:
+  include:
+    - stage: test and build
+      env:
+        - RUSTFLAGS='-C link-dead-code'
+      script: cargo test --features sqlite --no-default-features --all
+      after_success:
+       - |
+           wget https://github.com/SimonKagstrom/kcov/archive/master.tar.gz &&
+           tar xzf master.tar.gz &&
+           cd kcov-master &&
+           mkdir build &&
+           cd build &&
+           cmake .. &&
+           make &&
+           sudo make install &&
+           cd ../.. &&
+           rm -rf kcov-master &&
+           for crate in plume plume_common plume_models plume_api plm lib; do for file in target/debug/$crate-*[^\.d]; do mkdir -p "target/cov/$(basename $file)"; kcov --exclude-pattern=/.cargo,/usr/lib --verify "target/cov/$(basename $file)" "$file"; done; done &&
+           bash <(curl -s https://codecov.io/bash) &&
+           echo "Uploaded code coverage"
+    - stage: test and build
+      env:
+        - MIGRATION_DIR=migrations/postgres FEATURES=postgres DATABASE_URL=postgres://postgres@localhost/plume
+      script: cargo build --no-default-features --features="${FEATURES}"
+    - stage: test and build
+      env:
+        - MIGRATION_DIR=migrations/sqlite   FEATURES=sqlite   DATABASE_URL=plume.sqlite3
+      script: cargo build --no-default-features --features="${FEATURES}"