Method test_roundtrip

tests/test_parser.py:318–375

(self)

        self.assertEqualMetrics([a, b], list(families))

    def test_roundtrip(self):
        text = """# HELP go_gc_duration_seconds A summary of the GC invocation durations.
# TYPE go_gc_duration_seconds summary
go_gc_duration_seconds{quantile="0"} 0.013300656000000001
go_gc_duration_seconds{quantile="0.25"} 0.013638736
go_gc_duration_seconds{quantile="0.5"} 0.013759906
go_gc_duration_seconds{quantile="0.75"} 0.013962066
go_gc_duration_seconds{quantile="1"} 0.021383540000000003
go_gc_duration_seconds_sum 56.12904785
go_gc_duration_seconds_count 7476.0
# HELP go_goroutines Number of goroutines that currently exist.
# TYPE go_goroutines gauge
go_goroutines 166.0
# HELP prometheus_local_storage_indexing_batch_duration_milliseconds Quantiles for batch indexing duration in milliseconds.
# TYPE prometheus_local_storage_indexing_batch_duration_milliseconds summary
prometheus_local_storage_indexing_batch_duration_milliseconds{quantile="0.5"} NaN
prometheus_local_storage_indexing_batch_duration_milliseconds{quantile="0.9"} NaN
prometheus_local_storage_indexing_batch_duration_milliseconds{quantile="0.99"} NaN
prometheus_local_storage_indexing_batch_duration_milliseconds_sum 871.5665949999999
prometheus_local_storage_indexing_batch_duration_milliseconds_count 229.0
# HELP process_cpu_seconds_total Total user and system CPU time spent in seconds.
# TYPE process_cpu_seconds_total counter
process_cpu_seconds_total 29323.4
# HELP process_virtual_memory_bytes Virtual memory size in bytes.
# TYPE process_virtual_memory_bytes gauge
process_virtual_memory_bytes 2.478268416e+09
# HELP prometheus_build_info A metric with a constant '1' value labeled by version, revision, and branch from which Prometheus was built.
# TYPE prometheus_build_info gauge
prometheus_build_info{branch="HEAD",revision="ef176e5",version="0.16.0rc1"} 1.0
# HELP prometheus_local_storage_chunk_ops_total The total number of chunk operations by their type.
# TYPE prometheus_local_storage_chunk_ops_total counter
prometheus_local_storage_chunk_ops_total{type="clone"} 28.0
prometheus_local_storage_chunk_ops_total{type="create"} 997844.0
prometheus_local_storage_chunk_ops_total{type="drop"} 1.345758e+06
prometheus_local_storage_chunk_ops_total{type="load"} 1641.0
prometheus_local_storage_chunk_ops_total{type="persist"} 981408.0
prometheus_local_storage_chunk_ops_total{type="pin"} 32662.0
prometheus_local_storage_chunk_ops_total{type="transcode"} 980180.0
prometheus_local_storage_chunk_ops_total{type="unpin"} 32662.0
# HELP "my.utf8.metric.#{}=" A fancy metric with dots.
# TYPE "my.utf8.metric.#{}=" summary
{"my.utf8.metric.#{}=",quantile="0"} 0.013300656000000001
{"my.utf8.metric.#{}=",quantile="0.25"} 0.013638736
{"my.utf8.metric.#{}=",quantile="0.5"} 0.013759906
{"my.utf8.metric.#{}=",quantile="0.75"} 0.013962066
{"my.utf8.metric.#{}=",quantile="1"} 0.021383540000000003
{"my.utf8.metric.#{}=_sum"} 56.12904785
{"my.utf8.metric.#{}=_count"} 7476.0
"""
        families = list(text_string_to_metric_families(text))

        class TextCollector:
            def collect(self):
                return families

        registry = CollectorRegistry()
        registry.register(TextCollector())
        self.assertEqual(text.encode('utf-8'), generate_latest(registry, ALLOWUTF8))