Use cached images for integration tests

Add alpine and busybox as the two seeded images that can
be put into the tests' storage without the need to pull
it over the network.  Add the following to the kpod_TEST.bats
file:

function setup() {
    copy_images
}

Also, export several image names for shorter reference:

* BB -> docker.io/library/busybox:latest
* BB_GLIBC -> docker.io/library/busybox:glibc
* ALPINE -> docker.io/library/alpine:latest
* FEDORA_MINIMAL -> registry.fedoraproject.org/fedora-minimal:latest

And finally, there were two pervasive changes I made in
tests:

* Because we use temporary storage, we do not need to rmi at the end of each test
* We no longer need to pull most images because they are added via copy_images

Signed-off-by: baude <bbaude@redhat.com>

Closes: #43
Approved by: mheon

1 files changed, 6 insertions, 16 deletions

diff --git a/test/kpod_diff.bats b/test/kpod_diff.bats
index 826fc7389..d73f462f6 100644
--- a/test/kpod_diff.bats
+++ b/test/kpod_diff.bats
@@ -2,20 +2,16 @@
 
 load helpers
 
-IMAGE="alpine:latest"
+function setup() {
+    copy_images
+}
 
 function teardown() {
     cleanup_test
 }
 
 @test "test diff of image and parent" {
-    run bash -c ${KPOD_BINARY} $KPOD_OPTIONS pull $IMAGE
-    echo "$output"
-    [ "$status" -eq 0 ]
-    run bash -c ${KPOD_BINARY} $KPOD_OPTIONS diff $IMAGE
-    echo "$output"
-    [ "$status" -eq 0 ]
-    run bash -c ${KPOD_BINARY} $KPOD_OPTIONS rmi $IMAGE
+    run ${KPOD_BINARY} $KPOD_OPTIONS diff $BB
     echo "$output"
     [ "$status" -eq 0 ]
 }
@@ -27,14 +23,8 @@ function teardown() {
 }
 
 @test "test diff with json output" {
-    run bash -c ${KPOD_BINARY} $KPOD_OPTIONS pull $IMAGE
-    echo "$output"
-    [ "$status" -eq 0 ]
-    # run bash -c bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} diff --format json $IMAGE | python -m json.tool"
-    run bash -c ${KPOD_BINARY} $KPOD_OPTIONS diff --format json $IMAGE
-    echo "$output"
-    [ "$status" -eq 0 ]
-    run bash -c ${KPOD_BINARY} $KPOD_OPTIONS rmi $IMAGE
+    # run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} diff --format json $IMAGE | python -m json.tool"
+    run ${KPOD_BINARY} $KPOD_OPTIONS diff --format json $BB
     echo "$output"
     [ "$status" -eq 0 ]
 }