better info on slow

Author: jreback

Diff for: .travis.yml

@@ -37,7 +37,7 @@ matrix:
         - JOB="3.5_OSX" TEST_ARGS="--skip-slow --skip-network"
     - dist: trusty
       env:
-        - JOB="2.7_LOCALE" TEST_ARGS="--only-slow --skip-network" LOCALE_OVERRIDE="zh_CN.UTF-8"
+        - JOB="2.7_LOCALE" TEST_ARGS="--only-slow --skip-network" LOCALE_OVERRIDE="zh_CN.UTF-8" SLOW=1
       addons:
         apt:
           packages:
@@ -62,7 +62,7 @@ matrix:
     # In allow_failures
     - dist: trusty
       env:
-        - JOB="2.7_SLOW" TEST_ARGS="--only-slow --skip-network"
+        - JOB="2.7_SLOW" TEST_ARGS="--only-slow --skip-network" SLOW=1
     # In allow_failures
     - dist: trusty
       env:
@@ -82,7 +82,7 @@ matrix:
     allow_failures:
       - dist: trusty
         env:
-          - JOB="2.7_SLOW" TEST_ARGS="--only-slow --skip-network"
+          - JOB="2.7_SLOW" TEST_ARGS="--only-slow --skip-network" SLOW=1
       - dist: trusty
         env:
           - JOB="2.7_BUILD_TEST" TEST_ARGS="--skip-slow" BUILD_TEST=true

Diff for: ci/script_multi.sh

@@ -36,6 +36,10 @@ elif [ "$COVERAGE" ]; then
     echo pytest -s -n 2 -m "not single" --cov=pandas --cov-report xml:/tmp/cov-multiple.xml --junitxml=/tmp/multiple.xml $TEST_ARGS pandas
     pytest -s -n 2 -m "not single" --cov=pandas --cov-report xml:/tmp/cov-multiple.xml --junitxml=/tmp/multiple.xml $TEST_ARGS pandas
 
+elif [ "$SLOW" ]; then
+    echo pytest -r xX -m "not single and slow" -v --junitxml=/tmp/multiple.xml $TEST_ARGS pandas
+    pytest -r xX -m "not single and slow" -v --junitxml=/tmp/multiple.xml $TEST_ARGS pandas
+
 else
     echo pytest -n 2 -r xX -m "not single" --junitxml=/tmp/multiple.xml $TEST_ARGS pandas
     pytest -n 2 -r xX -m "not single" --junitxml=/tmp/multiple.xml $TEST_ARGS pandas # TODO: doctest