def test_raises_error_when_no_match_if_found_in_target(self):
"""
See Issue #40
"""
model = Model(
components=[
Component(name="server",
provided_services=[Service("Awesome")],
variables=[
Variable(
name="memory",
value_type=str,
values=["1GB", "2GB"],
realization=[
Substitution(
targets=["docker-compose.yml"],
pattern="pattern that does not exist",
replacements=["mem=1", "mem=2"])
])
],
implementation=DockerFile("server/Dockerfile"))
],
goals=Goals(services=[Service("Awesome")]))
server = model.resolve("server")
configuration = Configuration(
model,
instances = [
Instance(name="server_0",
definition=server,
configuration=[(server.variables[0], "2GB")])
])
with self.assertRaises(Exception):
self.realize(configuration)
def test_substitution_in_component_files(self):
model = Model(
components=[
Component(name="server",
provided_services=[Service("Awesome")],
variables=[
Variable(
name="memory",
value_type=str,
values=["1GB", "2GB"],
realization=[
Substitution(
targets=["server/Dockerfile",
"server/server.cfg"],
pattern="mem=XXX",
replacements=["mem=1", "mem=2"])
])
],
implementation=DockerFile("server/Dockerfile"))
],
goals=Goals(services=[Service("Awesome")]))
server = model.resolve("server")
configuration = Configuration(
model,
instances = [
Instance(name="server_0",
definition=server,
configuration=[(server.variables[0], "2GB")])
])
self.realize(configuration)
self.assert_file_contains("config_1/images/server_0/Dockerfile", "mem=2")
self.assert_file_contains("config_1/images/server_0/server.cfg", "mem=2")
def test_given_a_component_with_a_variable_with_substitution(self):
self.assert_complete(
"components:\n"
" server:\n"
" provides_services: [ Wonderful ]\n"
" variables:\n"
" memory:\n"
" type: Text\n"
" values: [1GB, 2GB, 4GB]\n"
" realization:\n"
" - targets: [ file1, path/to/file2 ]\n"
" pattern: xmem=1GB\n"
" replacements: [xmem=1, xmem=2, xmem=4]\n"
"goals:\n"
" running:\n"
" - Wonderful\n",
expectations={
"services": ["Wonderful"],
"features": [],
"components": {
"server": {
"provided_services": ["Wonderful"],
"required_services": [],
"provided_features": [],
"required_features": [],
"implementation": None,
"variables": {
"memory": {
"values": ["1GB", "2GB", "4GB"],
"realization": [
Substitution(
targets=["file1", "path/to/file2"],
pattern="xmem=1GB",
replacements=[
"xmem=1", "xmem=2", "xmem=4"
])
]
}
}
}
},
"goals": {
"services": ["Wonderful"],
"features": []
}
})
def test_succeeds_in_inner_component_files(self):
"""
See Issue #48
"""
self.create_template_file(
component="server",
resource="src/config/settings.ini",
content="parameter=XYZ")
model = Model(
components=[
Component(name="server",
provided_services=[Service("Awesome")],
variables=[
Variable(
name="memory",
value_type=str,
values=["1GB", "2GB"],
realization=[
Substitution(
targets=["server/src/config/settings.ini"],
pattern="parameter=XYZ",
replacements=["parameter=1GB",
"parameter=2GB"])
])
],
implementation=DockerFile("server/Dockerfile"))
],
goals=Goals(services=[Service("Awesome")]))
server = model.resolve("server")
configuration = Configuration(
model,
instances = [
Instance(name="server_0",
definition=server,
configuration=[(server.variables[0], "2GB")])
])
self.realize(configuration)
self.assert_file_contains(
"config_1/images/server_0/src/config/settings.ini",
"parameter=2GB")
def test_substitution_with_pattern_longer_than_replacement(self):
"""
See Issue 57
"""
self.create_template_file(component="server",
resource="config.ini",
content=("value: This is a very very long pattern\n"
"Here is the end\n"))
model = Model(
components=[
Component(name="server",
provided_services=[Service("Awesome")],
variables=[
Variable(
name="config",
value_type=str,
values=["v1"],
realization=[
Substitution(
targets=["server/config.ini"],
pattern="value: This is a very very long pattern",
replacements=["value: v1"])
])
],
implementation=DockerFile("server/Dockerfile"))
],
goals=Goals(services=[Service("Awesome")]))
server = model.resolve("server")
configuration = Configuration(
model,
instances = [
Instance(name="server_0",
definition=server,
configuration=[(server.variables[0], "v1")])
])
self.realize(configuration)
self.assert_file_contains_exactly(
"config_1/images/server_0/config.ini",
("value: v1\n"
"Here is the end\n"))
def _parse_substitution(self, component, variable, index, data):
path = [Keys.COMPONENTS,
component,
Keys.VARIABLES,
variable,
Keys.REALIZATION,
"#%d" % index]
targets = []
pattern = self.UNDEFINED_PATTERN
replacements = []
for key, item in data.items():
if key == Keys.TARGETS:
if not isinstance(data[key], list):
self._wrong_type(list, type(item), *(path + [key]))
continue
targets = [each for each in item]
elif key == Keys.PATTERN:
pattern = data[key]
elif key == Keys.REPLACEMENTS:
if not isinstance(data[key], list):
self._wrong_type(list, type(item), *(path + [key]))
continue
replacements = [each for each in item]
else:
self._ignore(*(path + [key]))
if not targets:
self._missing([Keys.TARGETS], *path)
if pattern == self.UNDEFINED_PATTERN:
self._missing([Keys.PATTERN], *path)
if not replacements:
self._missing([Keys.REPLACEMENTS], *path)
return Substitution(targets, pattern, replacements)
def test_substitute_pattern_that_contains_regex_sensitive_character(self):
"""
See Issue #56
"""
self.create_template_file(content="\"resolve\": \"^1.1.6\"")
model = Model(
components=[
Component(name="server",
provided_services=[Service("Awesome")],
variables=[
Variable(
name="memory",
value_type=str,
values=["1GB", "2GB"],
realization=[
Substitution(
targets=["server/server.cfg"],
pattern="\"resolve\": \"^1.1.6\"",
replacements=["\"resolve\": 1",
"\"resolve\": 2"])
])
],
implementation=DockerFile("server/Dockerfile"))
],
goals=Goals(services=[Service("Awesome")]))
server = model.resolve("server")
configuration = Configuration(
model,
instances = [
Instance(name="server_0",
definition=server,
configuration=[(server.variables[0], "2GB")])
])
self.realize(configuration)
self.assert_file_contains(
"config_1/images/server_0/server.cfg",
"\"resolve\": 2")