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images: empty list is valid json with --format=json

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similar change to f7d55d64e7040cdad149684234ea150b0a90cf0e

with images --format=json, be sure the output is valid json also when
it is an empty list.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano
2019-10-11 21:38:31 +02:00
parent b0b3506621
commit 71410ff073
2 changed files with 14 additions and 9 deletions
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7
test/e2e/images_test.go
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@ -101,6 +101,13 @@ var _ = Describe("Podman images", func() {
Expect(session.LineInOuputStartsWith("docker.io/library/busybox")).To(BeTrue())
})
It("podman empty images list in JSON format", func() {
session := podmanTest.Podman([]string{"images", "--format=json", "not-existing-image"})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(0))
Expect(session.IsJSONOutputValid()).To(BeTrue())
})
It("podman images in JSON format", func() {
session := podmanTest.Podman([]string{"images", "--format=json"})
session.WaitWithDefaultTimeout()