diff --git a/service/telemetry/config_test.go b/service/telemetry/config_test.go
index 7fc33f7ae5f..d07e2014b83 100644
--- a/service/telemetry/config_test.go
+++ b/service/telemetry/config_test.go
@@ -66,20 +66,58 @@ func TestLoadConfig(t *testing.T) {
 
 func TestUnmarshalMetricReaders(t *testing.T) {
 	tests := []struct {
-		name    string
-		cfg     *confmap.Conf
-		success bool
-		err     string
+		name string
+		cfg  *confmap.Conf
+		err  string
 	}{
 		{
 			name: "invalid config",
 			cfg:  confmap.NewFromStringMap(map[string]any{"invalid": "invalid"}),
 			err:  "unsupported metric reader type: invalid",
 		},
+		{
+			name: "valid reader type, invalid config",
+			cfg:  confmap.NewFromStringMap(map[string]any{"pull": "garbage"}),
+			err:  "invalid pull metric reader configuration: '' expected a map, got 'string'",
+		},
+		{
+			name: "valid pull reader type, no exporter",
+			cfg:  confmap.NewFromStringMap(map[string]any{"pull": PullMetricReader{}}),
+		},
+		{
+			name: "valid pull reader type, invalid exporter",
+			cfg: confmap.NewFromStringMap(map[string]any{"pull": PullMetricReader{
+				Exporter: MetricExporter{
+					"invalid": "invalid",
+				},
+			}}),
+			err: "unsupported metric exporter type: invalid",
+		},
+		{
+			name: "valid pull reader type, invalid prometheus exporter",
+			cfg: confmap.NewFromStringMap(map[string]any{"pull": PullMetricReader{
+				Exporter: MetricExporter{
+					"prometheus": "invalid",
+				},
+			}}),
+			err: "invalid exporter configuration: '' expected a map, got 'string'",
+		},
+		{
+			name: "valid pull reader type, valid prometheus exporter",
+			cfg: confmap.NewFromStringMap(map[string]any{"pull": PullMetricReader{
+				Exporter: MetricExporter{
+					"prometheus": Prometheus{},
+				},
+			}}),
+		},
 	}
 	for _, tt := range tests {
 		reader := make(MeterProviderJsonMetricReaders)
 		err := reader.Unmarshal(tt.cfg)
-		assert.ErrorContains(t, err, tt.err)
+		if len(tt.err) > 0 {
+			assert.ErrorContains(t, err, tt.err)
+		} else {
+			assert.NoError(t, err)
+		}
 	}
 }