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add cli tests for kubens (#117)

* split bats test invocation by executable

* add more cli tests for kubens

* clean up kubens tests

* small cleanup to kubens tests
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doodlesbykumbi authored and ahmetb committed Jan 3, 2019
1 parent df557e4 commit 402cc2c4b908a0aca1c461f89c0a70f9958a9948
Showing with 124 additions and 12 deletions.
  1. +2 −1 .travis.yml
  2. +10 −8 kubens
  3. +9 −1 test/common.bash
  4. +91 −2 test/kubens.bats
  5. +12 −0 test/mock-kubectl
@@ -5,4 +5,5 @@ before_install:
- sudo curl -fsSL -o /usr/bin/kubectl https://storage.googleapis.com/kubernetes-release/release/v1.13.1/bin/linux/amd64/kubectl
- sudo chmod +x /usr/bin/kubectl
script:
- bats test/
- bats test/kubectx.bats
- bats test/kubens.bats
18 kubens
@@ -54,7 +54,7 @@ current_namespace() {
}

current_context() {
$KUBECTL config view -o=jsonpath='{.current-context}'
$KUBECTL config current-context
}

get_namespaces() {
@@ -173,13 +173,15 @@ swap_namespace() {
}

main() {
if hash kubectl 2>/dev/null; then
KUBECTL=kubectl
elif hash kubectl.exe 2>/dev/null; then
KUBECTL=kubectl.exe
else
echo >&2 "kubectl is not installed"
exit 1
if [[ -z "${KUBECTL:-}" ]]; then
if hash kubectl 2>/dev/null; then
KUBECTL=kubectl
elif hash kubectl.exe 2>/dev/null; then
KUBECTL=kubectl.exe
else
echo >&2 "kubectl is not installed"
exit 1
fi
fi

if [[ "$#" -eq 0 ]]; then
@@ -17,6 +17,14 @@ use_config() {

# wrappers around "kubectl config" command

get_namespace() {
kubectl config view -o=jsonpath="{.contexts[?(@.name==\"$(get_context)\")].context.namespace}"
}

get_context() {
kubectl config current-context
kubectl config current-context
}

switch_context() {
kubectl config use-context "${1}"
}
@@ -1,15 +1,104 @@
#!/usr/bin/env bats

COMMAND="${BATS_TEST_DIRNAME}/../kubens"
export KUBECTL="$BATS_TEST_DIRNAME/../test/mock-kubectl"

load common

@test "--help should not fail" {
run ${COMMAND} --help
echo "$output">&2
[ "$status" -eq 0 ]
[[ "$status" -eq 0 ]]
}

@test "-h should not fail" {
run ${COMMAND} -h
echo "$output">&2
[ "$status" -eq 0 ]
[[ "$status" -eq 0 ]]
}

@test "list namespaces when no kubeconfig exists" {
run ${COMMAND}
echo "$output"
[[ "$status" -eq 1 ]]
[[ "$output" = *"current-context is not set"* ]]
}

@test "list namespaces" {
use_config config1
switch_context user1@cluster1

run ${COMMAND}
echo "$output"
[[ "$status" -eq 0 ]]
[[ "$output" = *"ns1"* ]]
[[ "$output" = *"ns2"* ]]
}

@test "switch to existing namespace" {
use_config config1
switch_context user1@cluster1

run ${COMMAND} "ns1"
echo "$output"
[[ "$status" -eq 0 ]]
[[ "$output" = *'Active namespace is "ns1"'* ]]
}

@test "switch to non-existing namespace" {
use_config config1
switch_context user1@cluster1

run ${COMMAND} "unknown-namespace"
echo "$output"
[[ "$status" -eq 1 ]]
[[ "$output" = *'no namespace exists with name "unknown-namespace"'* ]]
}

@test "switch between namespaces" {
use_config config1
switch_context user1@cluster1

run ${COMMAND} ns1
echo "$output"
[[ "$status" -eq 0 ]]
echo "$(get_namespace)"
[[ "$(get_namespace)" = "ns1" ]]

run ${COMMAND} ns2
echo "$output"
[[ "$status" -eq 0 ]]
echo "$(get_namespace)"
[[ "$(get_namespace)" = "ns2" ]]

run ${COMMAND} -
echo "$output"
[[ "$status" -eq 0 ]]
echo "$(get_namespace)"
[[ "$(get_namespace)" = "ns1" ]]

run ${COMMAND} -
echo "$output"
[[ "$status" -eq 0 ]]
echo "$(get_namespace)"
[[ "$(get_namespace)" = "ns2" ]]
}

@test "switch to previous namespace when none exists" {
use_config config1
switch_context user1@cluster1

run ${COMMAND} -
echo "$output"
[[ "$status" -eq 1 ]]
[[ "$output" = *"No previous namespace found for current context"* ]]
}

@test "switch to namespace when current context is empty" {
use_config config1

run ${COMMAND} -
echo "$output"
[[ "$status" -eq 1 ]]
[[ "$output" = *"current-context is not set"* ]]
}
@@ -0,0 +1,12 @@
#!/usr/bin/env bash

[[ -n $DEBUG ]] && set -x

set -eou pipefail

if [[ $@ == *'get namespaces'* ]]; then
echo "ns1"
echo "ns2"
else
kubectl $@
fi

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