Patient Match

app/handlers/match_test.go

@@ -0,0 +1,136 @@
+package handlers
+
+import (
+	"testing"
+)
+
+func TestNormName(t *testing.T) {
+	tests := []struct {
+		input, want string
+	}{
+		{"  Jane  ", "jane"},
+		{"SMITH", "smith"},
+		{"", ""},
+		{" Bob ", "bob"},
+	}
+	for _, tt := range tests {
+		got := normName(tt.input)
+		if got != tt.want {
+			t.Errorf("normName(%q) = %q, want %q", tt.input, got, tt.want)
+		}
+	}
+}
+
+func TestNormSex(t *testing.T) {
+	tests := []struct {
+		input, want string
+	}{
+		{"M", "M"},
+		{"F", "F"},
+		{"m", "M"},
+		{"male", "M"},
+		{"female", "F"},
+		{"other", "O"},
+		{"unknown", "U"},
+		{"MALE", "M"},
+		{"X", ""},
+		{"", ""},
+	}
+	for _, tt := range tests {
+		got := normSex(tt.input)
+		if got != tt.want {
+			t.Errorf("normSex(%q) = %q, want %q", tt.input, got, tt.want)
+		}
+	}
+}
+
+func TestComputeMatchScore_AllMatch(t *testing.T) {
+	a := map[string]string{
+		"first_name": "jane",
+		"last_name":  "smith",
+		"email":      "j@test.com",
+		"dob":        "1990-04-22",
+		"sex":        "F",
+	}
+	score, fields := computeMatchScore(a, a)
+	if score != 5 {
+		t.Errorf("expected score=5, got %d", score)
+	}
+	for k, f := range fields {
+		if !f.Match {
+			t.Errorf("expected field %q to match", k)
+		}
+	}
+}
+
+func TestComputeMatchScore_NoneMatch(t *testing.T) {
+	a := map[string]string{
+		"first_name": "jane",
+		"last_name":  "smith",
+		"email":      "j@test.com",
+		"dob":        "1990-04-22",
+		"sex":        "F",
+	}
+	b := map[string]string{
+		"first_name": "bob",
+		"last_name":  "jones",
+		"email":      "b@test.com",
+		"dob":        "1985-01-01",
+		"sex":        "M",
+	}
+	score, _ := computeMatchScore(a, b)
+	if score != 0 {
+		t.Errorf("expected score=0, got %d", score)
+	}
+}
+
+func TestComputeMatchScore_EmptyDoesNotMatch(t *testing.T) {
+	a := map[string]string{
+		"first_name": "jane",
+		"last_name":  "smith",
+		"email":      "",
+		"dob":        "",
+		"sex":        "",
+	}
+	b := map[string]string{
+		"first_name": "jane",
+		"last_name":  "smith",
+		"email":      "",
+		"dob":        "",
+		"sex":        "",
+	}
+	score, _ := computeMatchScore(a, b)
+	if score != 2 {
+		t.Errorf("expected score=2 (only name fields), got %d", score)
+	}
+}
+
+func TestComputeMatchScore_PartialMatch(t *testing.T) {
+	a := map[string]string{
+		"first_name": "jane",
+		"last_name":  "smith",
+		"email":      "a@test.com",
+		"dob":        "1990-04-22",
+		"sex":        "F",
+	}
+	b := map[string]string{
+		"first_name": "john",
+		"last_name":  "smith",
+		"email":      "b@test.com",
+		"dob":        "1990-04-22",
+		"sex":        "M",
+	}
+	score, fields := computeMatchScore(a, b)
+	if score != 2 {
+		t.Errorf("expected score=2 (last_name + dob), got %d", score)
+	}
+	if !fields["last_name"].Match {
+		t.Error("expected last_name to match")
+	}
+	if !fields["dob"].Match {
+		t.Error("expected dob to match")
+	}
+	if fields["first_name"].Match {
+		t.Error("expected first_name to NOT match")
+	}
+}