Build script suppotrs packages

tests/test_build.py

@@ -0,0 +1,40 @@
+import difflib
+import os
+import sys
+
+from podctl.container import Container
+from podctl.build import BuildScript
+
+
+def script_test(name, result):
+    path = os.path.join(
+        os.path.dirname(__file__),
+        f'test_{name}.sh',
+    )
+
+    if not os.path.exists(path):
+        with open(path, 'w+') as f:
+            f.write(result)
+        raise Exception('Fixture created test_build_packages.sh')
+    with open(path, 'r') as f:
+        expected = f.read()
+    result = difflib.unified_diff(
+        expected,
+        result,
+        fromfile='expected',
+        tofile='result'
+    )
+    assert not list(result), sys.stdout.writelines(result)
+
+
+def test_build_empty():
+    result = str(BuildScript(Container()))
+    script_test('build_empty', result)
+
+
+def test_build_packages():
+    result = str(BuildScript(Container(
+        base='alpine',
+        packages=['bash'],
+    )))
+    script_test('build_packages', result)

tests/test_build_empty.sh

@@ -0,0 +1,11 @@
+#/usr/bin/env bash
+mounts=()
+umounts() {
+    for i in "${mounts[@]}"; do
+        umount $i
+    done
+}
+trap umounts 0
+ctr=$(buildah from $base)
+mnt=$(buildah mount $ctr)
+mounts=("$mnt" "${mounts[@]}")

tests/test_build_packages.sh

@@ -0,0 +1,22 @@
+#/usr/bin/env bash
+base="alpine"
+mounts=()
+umounts() {
+    for i in "${mounts[@]}"; do
+        umount $i
+    done
+}
+trap umounts 0
+ctr=$(buildah from $base)
+mnt=$(buildah mount $ctr)
+mounts=("$mnt" "${mounts[@]}")
+buildah run $ctr -- mkdir -p /var/cache/apk
+mkdir -p $(pwd)/.cache/apk
+mount -o bind $(pwd)/.cache/apk $mnt/var/cache/apk
+mounts=("$mnt/var/cache/apk" "${mounts[@]}")
+buildah run $ctr -- ln -s /var/cache/apk /etc/apk/cache
+if [ -n "$(find .cache/apk/ -name APKINDEX.* -mtime +3)" ]; then
+    buildah run $ctr -- apk update
+fi
+buildah run $ctr -- apk upgrade
+buildah run $ctr -- apk add bash

tests/test_container.py

@@ -0,0 +1,56 @@
+from .container import Container, switch
+
+
+def test_container_configuration():
+    '''Attributes should be passable to constructor or as class attributes'''
+    assert Container(a='b')['a'] == 'b'
+    class Test(Container):
+        cfg = dict(a='b')
+    assert Test()['a'] == 'b'
+
+
+def test_switch_simple():
+    assert Container(a=switch(default='expected'))['a'] == 'expected'
+    assert Container(a=switch(noise='noise'))['a'] == None
+    fixture = Container(
+        'test',
+        a=switch(default='noise', test='expected')
+    )
+    assert fixture['a'] == 'expected'
+    assert [*fixture.values()][0] == 'expected'
+    assert [*fixture.items()][0][1] == 'expected'
+
+
+def test_switch_iterable():
+    class TContainer(Container):
+        cfg = dict(
+            a=switch(dev='test')
+        )
+    assert TContainer()['a'] is None
+    assert TContainer('dev')['a'] == 'test'
+    assert TContainer('dev', a=[switch(dev='y')])['a'] == ['y']
+    assert TContainer('dev', a=[switch(default='y')])['a'] == ['y']
+
+
+def test_switch_value_list():
+    assert Container('test').switch_value(
+        [switch(default='noise', test=False)]
+    ) == [False]
+
+    assert Container('none').switch_value(
+        [switch(noise='noise')]
+    ) == []
+
+
+def test_switch_value_dict():
+    assert Container('foo').switch_value(
+        dict(i=switch(default='expected', noise='noise'))
+    ) == dict(i='expected')
+
+    assert Container('test').switch_value(
+        dict(i=switch(default='noise', test='expected'))
+    ) == dict(i='expected')
+
+    assert Container('none').switch_value(
+        dict(i=switch(noise='noise'), j=dict(e=switch(none=1)))
+    ) == dict(j=dict(e=1))

tests/test_pod.py

@@ -0,0 +1,10 @@
+import os
+from pathlib import Path
+
+from pod import Pod
+
+
+def test_pod_file():
+    path = Path(os.path.dirname(__file__)) / '..' / 'pod.py'
+    pod = Pod.factory(path)
+    assert pod['podctl']