Add a runs screen: a table, a run in full, and curves side by side

backend/tests/flow/test_dashboards.py

@@ -11,10 +11,12 @@ from fluksio.flow.dashboards import (
     SettingDef,
     WidgetDef,
     default_dashboard,
+    results_dashboard,
 )
 from fluksio.flow.messages import DType, MessageSpec
 from fluksio.flow.nodes import Node
 from fluksio.flow.pipeline import Pipeline
+from fluksio.flow.schemas import FlowDef, NodeDef
 from fluksio.flow.state import MemoryState
 from fluksio.flow.store import FlowStore, StaleVersion
 
@@ -444,3 +446,50 @@ def test_a_bound_setting_is_drawn_on_the_canvas(store: DashboardStore):
     assert binding["requires"] == ["home.theme"]
     assert not binding["provides"]
     assert store.bindings_for("other") == []
+
+
+def training_flow() -> FlowDef:
+    """A batch flow shaped like an experiment: a curve and two results."""
+    return FlowDef(
+        name="study",
+        mode="batch",
+        outputs=["accuracy", "report"],
+        nodes=[
+            NodeDef(
+                id="fit",
+                provides=[
+                    MessageSpec(name="loss", dtype=DType.FLOAT, stream=True),
+                    MessageSpec(name="accuracy", dtype=DType.FLOAT),
+                    MessageSpec(name="report", dtype=DType.RECORD),
+                    MessageSpec(name="weights", dtype=DType.ARTIFACT),
+                ],
+            )
+        ],
+    )
+
+
+def test_a_generated_dashboard_charts_the_curves_and_states_the_results():
+    """The ports are the whole specification; nothing else is guessed."""
+    defn = results_dashboard(training_flow())
+    kinds = [(w.type, w.config.get("message")) for w in defn.widgets]
+
+    assert [w.type for w in defn.widgets] == ["chart", "stat", "notification"]
+    assert defn.widgets[0].config["series"][0]["message"] == "study.loss"
+    assert ("stat", "study.accuracy") in kinds
+    assert ("notification", "study.report") in kinds
+
+
+def test_an_artifact_output_gets_no_widget():
+    """A checkpoint has no single reading to draw."""
+    defn = results_dashboard(
+        training_flow().model_copy(update={"outputs": ["weights"]})
+    )
+
+    assert [w.type for w in defn.widgets] == ["chart"]
+
+
+def test_a_flow_declaring_no_outputs_draws_no_stats():
+    """Empty outputs means "everything", which is not a set to enumerate."""
+    defn = results_dashboard(training_flow().model_copy(update={"outputs": []}))
+
+    assert [w.type for w in defn.widgets] == ["chart"]