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‎lib/utils/pii.test.ts‎

Lines changed: 127 additions & 137 deletions
Original file line numberDiff line numberDiff line change
@@ -47,166 +47,156 @@ describe("redactPii", () => {
4747
);
4848
});
4949

50-
51-
it("documents with less than 7 digit number notredacted", () => {
52-
// as the Minimum digit count for something to qualify as a phone number is 7
53-
expect(redactPhones("Order 123456")).toBe(
54-
"Order 123456",
55-
);
56-
});
57-
58-
it("doesnt redacts a long tracking number as a phone number", () => {
59-
expect(
60-
redactPhones("Tracking number: 9400111899223856928490"),
61-
).toBe("Tracking number: 9400111899223856928490");
50+
it("documents with less than 7 digit number notredacted", () => {
51+
// as the Minimum digit count for something to qualify as a phone number is 7
52+
expect(redactPhones("Order 123456")).toBe("Order 123456");
6253
});
6354

64-
// over-redacts scenarios
55+
it("doesnt redacts a long tracking number as a phone number", () => {
56+
expect(redactPhones("Tracking number: 9400111899223856928490")).toBe(
57+
"Tracking number: 9400111899223856928490",
58+
);
59+
});
6560

66-
it("over-redacts emails with invalid local-part separators", () => {
67-
expect(
68-
redactEmails(
69-
"Contact alice.@example.com and alice..smith@example.com today",
70-
),
71-
).toBe("Contact [EMAIL REDACTED] and [EMAIL REDACTED] today");
72-
});
61+
// over-redacts scenarios
7362

74-
it("over-redacts emails with invalid domain separators", () => {
75-
expect(
76-
redactEmails(
77-
"Contact bob@-domain.org and bob@domain-.org today",
78-
),
79-
).toBe("Contact [EMAIL REDACTED] and [EMAIL REDACTED] today");
80-
});
63+
it("over-redacts emails with invalid local-part separators", () => {
64+
expect(
65+
redactEmails(
66+
"Contact alice.@example.com and alice..smith@example.com today",
67+
),
68+
).toBe("Contact [EMAIL REDACTED] and [EMAIL REDACTED] today");
69+
});
8170

82-
it("over-redacts emails with leading dots in the domain", () => {
83-
expect(redactEmails("Contact bob@.domain.org today")).toBe(
84-
"Contact [EMAIL REDACTED] today",
85-
);
86-
});
71+
it("over-redacts emails with invalid domain separators", () => {
72+
expect(
73+
redactEmails("Contact bob@-domain.org and bob@domain-.org today"),
74+
).toBe("Contact [EMAIL REDACTED] and [EMAIL REDACTED] today");
75+
});
8776

88-
it("over-redacts emails with consecutive dots in the domain", () => {
89-
expect(redactEmails("Contact bob@domain..org today")).toBe(
90-
"Contact [EMAIL REDACTED] today",
91-
);
92-
});
77+
it("over-redacts emails with leading dots in the domain", () => {
78+
expect(redactEmails("Contact bob@.domain.org today")).toBe(
79+
"Contact [EMAIL REDACTED] today",
80+
);
81+
});
9382

94-
it("over-redacts an email inside a URL", () => {
95-
expect(redactEmails("Visit https://alice@example.com/profile today")).toBe(
96-
"Visit https://[EMAIL REDACTED]/profile today",
97-
);
98-
});
83+
it("over-redacts emails with consecutive dots in the domain", () => {
84+
expect(redactEmails("Contact bob@domain..org today")).toBe(
85+
"Contact [EMAIL REDACTED] today",
86+
);
87+
});
9988

100-
it("over-redacts a documentation email", () => {
101-
expect(redactEmails("Use user@example.com in the documentation")).toBe(
102-
"Use [EMAIL REDACTED] in the documentation",
103-
);
104-
});
89+
it("over-redacts an email inside a URL", () => {
90+
expect(redactEmails("Visit https://alice@example.com/profile today")).toBe(
91+
"Visit https://[EMAIL REDACTED]/profile today",
92+
);
93+
});
10594

106-
it("over-redacts multiple invalid email-like values in one string", () => {
107-
expect(
108-
redactEmails(
109-
"Values: _alice@example.com bob@domain..org carol.@example.com",
110-
),
111-
).toBe(
112-
"Values: [EMAIL REDACTED] [EMAIL REDACTED] [EMAIL REDACTED]",
113-
);
114-
});
95+
it("over-redacts a documentation email", () => {
96+
expect(redactEmails("Use user@example.com in the documentation")).toBe(
97+
"Use [EMAIL REDACTED] in the documentation",
98+
);
99+
});
115100

116-
it("over-redacts a plain number as a phone number", () => {
117-
expect(redactPhones("Reference number: 1234567")).toBe(
118-
"Reference number: [PHONE REDACTED]",
119-
);
120-
});
101+
it("over-redacts multiple invalid email-like values in one string", () => {
102+
expect(
103+
redactEmails(
104+
"Values: _alice@example.com bob@domain..org carol.@example.com",
105+
),
106+
).toBe("Values: [EMAIL REDACTED] [EMAIL REDACTED] [EMAIL REDACTED]");
107+
});
121108

122-
it("over-redacts a long numeric identifier as a phone number", () => {
123-
expect(redactPhones("Order ID: 001234567890")).toBe(
124-
"Order ID: [PHONE REDACTED]",
125-
);
126-
});
109+
it("over-redacts a plain number as a phone number", () => {
110+
expect(redactPhones("Reference number: 1234567")).toBe(
111+
"Reference number: [PHONE REDACTED]",
112+
);
113+
});
127114

128-
it("over-redacts a version number as a phone number", () => {
129-
expect(redactPhones("Build version: 1.234.567")).toBe(
130-
"Build version: [PHONE REDACTED]",
131-
);
132-
});
115+
it("over-redacts a long numeric identifier as a phone number", () => {
116+
expect(redactPhones("Order ID: 001234567890")).toBe(
117+
"Order ID: [PHONE REDACTED]",
118+
);
119+
});
133120

134-
it("over-redacts an IP address as a phone number", () => {
135-
expect(redactPhones("Server IP: 192.168.1.1")).toBe(
136-
"Server IP: [PHONE REDACTED]",
137-
);
138-
});
121+
it("over-redacts a version number as a phone number", () => {
122+
expect(redactPhones("Build version: 1.234.567")).toBe(
123+
"Build version: [PHONE REDACTED]",
124+
);
125+
});
139126

140-
it("over-redacts a date-like value as a phone number", () => {
141-
expect(redactPhones("Reference date: 2026-08-06")).toBe(
142-
"Reference date: [PHONE REDACTED]",
143-
);
144-
});
127+
it("over-redacts an IP address as a phone number", () => {
128+
expect(redactPhones("Server IP: 192.168.1.1")).toBe(
129+
"Server IP: [PHONE REDACTED]",
130+
);
131+
});
145132

146-
it("over-redacts a timestamp as a phone number", () => {
147-
expect(redactPhones("Created at: 20260806144500")).toBe(
148-
"Created at: [PHONE REDACTED]",
149-
);
150-
});
133+
it("over-redacts a date-like value as a phone number", () => {
134+
expect(redactPhones("Reference date: 2026-08-06")).toBe(
135+
"Reference date: [PHONE REDACTED]",
136+
);
137+
});
151138

152-
it("over-redacts a postal code as a phone number", () => {
153-
expect(redactPhones("PIN code: 11000123")).toBe(
154-
"PIN code: [PHONE REDACTED]",
155-
);
156-
});
139+
it("over-redacts a timestamp as a phone number", () => {
140+
expect(redactPhones("Created at: 20260806144500")).toBe(
141+
"Created at: [PHONE REDACTED]",
142+
);
143+
});
157144

145+
it("over-redacts a postal code as a phone number", () => {
146+
expect(redactPhones("PIN code: 11000123")).toBe(
147+
"PIN code: [PHONE REDACTED]",
148+
);
149+
});
158150

159-
it("over-redacts a currency amount as a phone number", () => {
160-
expect(redactPhones("Total amount: 123.456.789")).toBe(
161-
"Total amount: [PHONE REDACTED]",
162-
);
163-
});
151+
it("over-redacts a currency amount as a phone number", () => {
152+
expect(redactPhones("Total amount: 123.456.789")).toBe(
153+
"Total amount: [PHONE REDACTED]",
154+
);
155+
});
164156

165-
it("over-redacts coordinates as a phone number", () => {
166-
expect(redactPhones("Location: 28.6139 77.2090")).toBe(
167-
"Location: [PHONE REDACTED]",
168-
);
169-
});
157+
it("over-redacts coordinates as a phone number", () => {
158+
expect(redactPhones("Location: 28.6139 77.2090")).toBe(
159+
"Location: [PHONE REDACTED]",
160+
);
161+
});
170162

171-
it("over-redacts an all-zero placeholder as a phone number", () => {
172-
expect(redactPhones("Placeholder: 000-000-0000")).toBe(
173-
"Placeholder: [PHONE REDACTED]",
174-
);
175-
});
163+
it("over-redacts an all-zero placeholder as a phone number", () => {
164+
expect(redactPhones("Placeholder: 000-000-0000")).toBe(
165+
"Placeholder: [PHONE REDACTED]",
166+
);
167+
});
176168

177-
it("over-redacts a parenthesized value as a phone number", () => {
178-
expect(redactPhones("Value: (2026) 1234567")).toBe(
179-
"Value: [PHONE REDACTED]",
180-
);
181-
});
169+
it("over-redacts a parenthesized value as a phone number", () => {
170+
expect(redactPhones("Value: (2026) 1234567")).toBe(
171+
"Value: [PHONE REDACTED]",
172+
);
173+
});
182174

183-
it("over-redacts an extension-like value as a phone number", () => {
184-
expect(redactPhones("Extension: ext-1234568")).toBe(
185-
"Extension: ext-[PHONE REDACTED]",
186-
);
187-
});
175+
it("over-redacts an extension-like value as a phone number", () => {
176+
expect(redactPhones("Extension: ext-1234568")).toBe(
177+
"Extension: ext-[PHONE REDACTED]",
178+
);
179+
});
188180

189-
it("over-redacts a number embedded in an identifier", () => {
190-
expect(redactPhones("Serial number: ABC-1234567-XYZ")).toBe(
191-
"Serial number: ABC-[PHONE REDACTED]-XYZ",
192-
);
193-
});
181+
it("over-redacts a number embedded in an identifier", () => {
182+
expect(redactPhones("Serial number: ABC-1234567-XYZ")).toBe(
183+
"Serial number: ABC-[PHONE REDACTED]-XYZ",
184+
);
185+
});
194186

195-
it("over-redacts multiple non-phone values in one string", () => {
196-
expect(
197-
redactPhones(
198-
"Date 2026-08-06, IP 192.168.1.1, version 1.234.567, order 001234567890",
199-
),
200-
).toBe(
201-
"Date [PHONE REDACTED], IP [PHONE REDACTED], version [PHONE REDACTED], order [PHONE REDACTED]",
202-
);
203-
});
187+
it("over-redacts multiple non-phone values in one string", () => {
188+
expect(
189+
redactPhones(
190+
"Date 2026-08-06, IP 192.168.1.1, version 1.234.567, order 001234567890",
191+
),
192+
).toBe(
193+
"Date [PHONE REDACTED], IP [PHONE REDACTED], version [PHONE REDACTED], order [PHONE REDACTED]",
194+
);
195+
});
204196

205-
it("over-redacts an email embedded in a larger token", () => {
206-
expect(redactEmails("Contact prefixalice@example.comsuffix today")).toBe(
207-
"Contact [EMAIL REDACTED] today",
208-
);
197+
it("over-redacts an email embedded in a larger token", () => {
198+
expect(redactEmails("Contact prefixalice@example.comsuffix today")).toBe(
199+
"Contact [EMAIL REDACTED] today",
200+
);
201+
});
209202
});
210-
211-
212-
});

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