Commit 34f3401

@@ -0,0 +1,21 @@
+
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'blood_pressure_record.freezed.dart';
+
+/// Immutable representation of a blood pressure measurement.
+@freezed
+class BloodPressureRecord with _$BloodPressureRecord {
+  /// Create a immutable representation of a blood pressure measurement.
+  const factory BloodPressureRecord({
+    /// Timestamp when the measurement was taken.
+    required DateTime time,
+    /// Systolic value of the measurement.
+    int? sys,
+    /// Diastolic value of the measurement.
+    int? dia,
+    /// Pulse value of the measurement.
+    int? pul,
+  }) = _BloodPressureRecord;
+}
+// TODO: create class for note and color/pin

@@ -0,0 +1,41 @@
+import 'package:health_data_store/src/types/blood_pressure_record.dart';
+import 'package:test/test.dart';
+
+void main() {
+  test('should initialize with all data', () {
+    final time = DateTime.now();
+    final record = BloodPressureRecord(
+      time: time,
+      sys: 123,
+      dia: 56,
+      pul: 78,
+    );
+    expect(record.time, time);
+    expect(record.sys, 123);
+    expect(record.dia, 56);
+    expect(record.pul, 78);
+    expect(record, equals(BloodPressureRecord(
+      time: time,
+      sys: 123,
+      dia: 56,
+      pul: 78,
+    )));
+  });
+  test('should initialize with partial data', () {
+    final time = DateTime.now();
+    final record = BloodPressureRecord(
+      time: time,
+      dia: 56,
+    );
+    expect(record.time, time);
+    expect(record.sys, null);
+    expect(record.dia, 56);
+    expect(record.pul, null);
+    expect(record, isNot(equals(BloodPressureRecord(
+      time: time,
+      sys: 123,
+      dia: 56,
+      pul: 78,
+    ))));
+  });
+}