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test: add cue unit tests (sigstore#1791)
Signed-off-by: hectorj2f <[email protected]>
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// | ||
// Copyright 2021 The Sigstore Authors. | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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package cue | ||
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import ( | ||
"fmt" | ||
"os" | ||
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"testing" | ||
) | ||
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var cueJSONAttestationsBody = ` | ||
{ | ||
"authorityMatches": { | ||
"keyatt": { | ||
"signatures": null, | ||
"attestations": { | ||
"vuln-key": [ | ||
{ | ||
"subject": "PLACEHOLDER", | ||
"issuer": "PLACEHOLDER" | ||
} | ||
] | ||
} | ||
}, | ||
"keysignature": { | ||
"signatures": [ | ||
{ | ||
"subject": "PLACEHOLDER", | ||
"issuer": "PLACEHOLDER" | ||
} | ||
], | ||
"attestations": null | ||
}, | ||
"keylessatt": { | ||
"signatures": null, | ||
"attestations": { | ||
"key1": [ | ||
{ | ||
"subject": "PLACEHOLDER", | ||
"issuer": "PLACEHOLDER" | ||
} | ||
], | ||
"key2": [ | ||
{ | ||
"subject": "PLACEHOLDER", | ||
"issuer": "PLACEHOLDER" | ||
} | ||
] | ||
} | ||
}, | ||
"keylesssignature": { | ||
"signatures": [ | ||
{ | ||
"subject": "PLACEHOLDER", | ||
"issuer": "PLACEHOLDER" | ||
} | ||
], | ||
"attestations": null | ||
} | ||
} | ||
} | ||
` | ||
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var cueJSONSampleBody = `{ | ||
"seq": [ | ||
1, 2, 3, { | ||
"a": 1, | ||
"b": 2 | ||
} | ||
], | ||
"a": {"b": {"c": 3}}, | ||
"b": { | ||
"x": 0, | ||
"y": 1, | ||
"z": 2 | ||
} | ||
}` | ||
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func TestValidationJSON(t *testing.T) { | ||
cases := []struct { | ||
name string | ||
jsonBody string | ||
policy string | ||
pass bool | ||
errorMsg string | ||
}{ | ||
{ | ||
name: "passing policy", | ||
jsonBody: cueJSONSampleBody, | ||
policy: ` | ||
package test | ||
seq: [ | ||
1, 2, 3, { | ||
a: 1 | ||
b: 2 | ||
} | ||
] | ||
a: b: c: 3 | ||
b: { | ||
x: 0 | ||
y: 1 | ||
z: 2 | ||
} | ||
`, | ||
pass: true, | ||
}, | ||
{ | ||
name: "passing result due to matching rules", | ||
jsonBody: cueJSONAttestationsBody, | ||
policy: ` | ||
package test | ||
import "struct" | ||
import "list" | ||
authorityMatches: { | ||
keyatt: { | ||
attestations: struct.MaxFields(1) & struct.MinFields(1) | ||
}, | ||
keysignature: { | ||
signatures: list.MaxItems(1) & list.MinItems(1) | ||
}, | ||
keylessatt: { | ||
attestations: struct.MinFields(2) & struct.MaxFields(2) | ||
}, | ||
keylesssignature: { | ||
signatures: list.MaxItems(1) & list.MinItems(1) | ||
} | ||
} | ||
`, | ||
pass: true, | ||
}, | ||
{ | ||
name: "policy query evaluates to false signatures array min items", | ||
jsonBody: cueJSONAttestationsBody, | ||
policy: ` | ||
package test | ||
import "list" | ||
authorityMatches: { | ||
keysignature: { | ||
signatures: list.MaxItems(2) & list.MinItems(2) | ||
} | ||
} | ||
`, | ||
pass: false, | ||
errorMsg: "authorityMatches.keysignature.signatures: invalid value [{subject:\"PLACEHOLDER\",issuer:\"PLACEHOLDER\"}] (does not satisfy list.MinItems(2))", | ||
}, | ||
} | ||
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for _, tt := range cases { | ||
t.Run(tt.name, func(t *testing.T) { | ||
policyFileName := "tmp-policy.cue" | ||
if err := os.WriteFile(policyFileName, []byte(tt.policy), 0644); err != nil { | ||
t.Fatal(err) | ||
} | ||
defer os.Remove(policyFileName) | ||
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if err := ValidateJSON([]byte(tt.jsonBody), []string{policyFileName}); (err == nil) != tt.pass { | ||
t.Fatalf("Unexpected result: %v", err) | ||
} else if err != nil { | ||
if fmt.Sprintf("%s", err) != tt.errorMsg { | ||
t.Errorf("Expected error %q, got %q", tt.errorMsg, err) | ||
} | ||
} | ||
}) | ||
} | ||
} |