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# pylint: disable=import-outside-toplevel, protected-access
"""
Comprehensive tests for warbler_cda.melt_layer module.
Tests the MeltLayer and MagmaStore for cluster retirement.
"""
class TestMagmaStore:
"""Test MagmaStore class."""
def test_magma_store_initialization(self):
"""MagmaStore should initialize with empty glyphs list."""
from warbler_cda.melt_layer import MagmaStore
store = MagmaStore()
assert not store.glyphs
def test_add_glyph(self):
"""add_glyph should append glyph to store."""
from warbler_cda.melt_layer import MagmaStore
store = MagmaStore()
glyph = {"id": "glyph-1", "summary": "test"}
store.add_glyph(glyph)
assert len(store.glyphs) == 1
assert store.glyphs[0] == glyph
def test_add_multiple_glyphs(self):
"""add_glyph should handle multiple glyphs."""
from warbler_cda.melt_layer import MagmaStore
store = MagmaStore()
for i in range(5):
store.add_glyph({"id": f"glyph-{i}"})
assert len(store.glyphs) == 5
def test_select_hot(self):
"""select_hot should return most recent glyphs."""
from warbler_cda.melt_layer import MagmaStore
store = MagmaStore()
import time
now = int(time.time())
for i in range(10):
created_epoch = now - (9 - i) * 3600
store.add_glyph({"id": f"glyph-{i}", "created_epoch": created_epoch})
hot = store.select_hot(limit=3)
assert len(hot) == 3
# Should be highest heat glyphs (most recent)
assert hot[0]["id"] == "glyph-9"
assert hot[1]["id"] == "glyph-8"
assert hot[2]["id"] == "glyph-7"
def test_select_hot_limit_exceeds_size(self):
"""select_hot should handle limit larger than store size."""
from warbler_cda.melt_layer import MagmaStore
store = MagmaStore()
store.add_glyph({"id": "glyph-1"})
store.add_glyph({"id": "glyph-2"})
hot = store.select_hot(limit=10)
assert len(hot) == 2
class TestMeltLayer:
"""Test MeltLayer class."""
def test_melt_layer_initialization(self):
"""MeltLayer should initialize with magma store."""
from warbler_cda.melt_layer import MeltLayer, MagmaStore
store = MagmaStore()
melt = MeltLayer(magma_store=store)
assert melt.magma_store == store
assert melt.embed_fn is not None
def test_melt_layer_custom_embed_fn(self):
"""MeltLayer should accept custom embedding function."""
from warbler_cda.melt_layer import MeltLayer, MagmaStore
store = MagmaStore()
def custom_embed(frags):
# frags is already a list of text strings
return [0.5, 0.5, 0.5]
melt = MeltLayer(magma_store=store, embed_fn=custom_embed)
# Call the embed function with empty list to verify it works
assert melt.embed_fn([]) == [0.5, 0.5, 0.5]
def test_retire_cluster_empty(self):
"""retire_cluster should handle empty cluster."""
from warbler_cda.melt_layer import MeltLayer, MagmaStore
store = MagmaStore()
melt = MeltLayer(magma_store=store)
cluster = {"fragments": []}
glyph = melt.retire_cluster(cluster)
assert "id" in glyph
assert glyph["compressed_summary"] == "(empty cluster)"
assert len(store.glyphs) == 1
def test_retire_cluster_with_fragments(self):
"""retire_cluster should process fragments into glyph."""
from warbler_cda.melt_layer import MeltLayer, MagmaStore
store = MagmaStore()
melt = MeltLayer(magma_store=store)
cluster = {
"fragments": [
{"id": "f1", "text": "Fragment one"},
{"id": "f2", "text": "Fragment two"}
]
}
glyph = melt.retire_cluster(cluster)
assert glyph["id"].startswith("mglyph_")
assert glyph["source_ids"] == ["f1", "f2"]
assert "Fragment one" in glyph["compressed_summary"]
assert "embedding" in glyph
assert "affect" in glyph
assert glyph["resolution_state"] == "retired"
assert "provenance_hash" in glyph
assert "created_epoch" in glyph
def test_glyph_id_deterministic(self):
"""_glyph_id should be deterministic for same summary."""
from warbler_cda.melt_layer import MeltLayer, MagmaStore
store = MagmaStore()
melt = MeltLayer(magma_store=store)
id1 = melt._glyph_id("test summary")
id2 = melt._glyph_id("test summary")
assert id1 == id2
assert id1.startswith("mglyph_")
def test_glyph_id_different_summaries(self):
"""_glyph_id should produce different IDs for different summaries."""
from warbler_cda.melt_layer import MeltLayer, MagmaStore
store = MagmaStore()
melt = MeltLayer(magma_store=store)
id1 = melt._glyph_id("summary one")
id2 = melt._glyph_id("summary two")
assert id1 != id2
def test_summarize_empty(self):
"""_summarize should handle empty fragments."""
from warbler_cda.melt_layer import MeltLayer, MagmaStore
store = MagmaStore()
melt = MeltLayer(magma_store=store)
summary = melt._summarize([])
assert summary == "(empty cluster)"
def test_summarize_single_fragment(self):
"""_summarize should handle single fragment."""
from warbler_cda.melt_layer import MeltLayer, MagmaStore
store = MagmaStore()
melt = MeltLayer(magma_store=store)
fragments = [{"text": "Single fragment text"}]
summary = melt._summarize(fragments)
assert "Single fragment text" in summary
def test_summarize_multiple_fragments(self):
"""_summarize should join multiple fragments."""
from warbler_cda.melt_layer import MeltLayer, MagmaStore
store = MagmaStore()
melt = MeltLayer(magma_store=store)
fragments = [
{"text": "Fragment one"},
{"text": "Fragment two"},
{"text": "Fragment three"}
]
summary = melt._summarize(fragments)
assert "Fragment one" in summary
assert "|" in summary # Separator
def test_summarize_truncation(self):
"""_summarize should truncate long summaries."""
from warbler_cda.melt_layer import MeltLayer, MagmaStore
store = MagmaStore()
melt = MeltLayer(magma_store=store)
# Create very long fragments
fragments = [{"text": "A" * 200} for _ in range(10)]
summary = melt._summarize(fragments)
# Should be truncated to 180 chars
assert len(summary) <= 180
def test_prov_hash_deterministic(self):
"""_prov_hash should be deterministic."""
from warbler_cda.melt_layer import MeltLayer, MagmaStore
store = MagmaStore()
melt = MeltLayer(magma_store=store)
fragments = [{"text": "test"}]
hash1 = melt._prov_hash(fragments)
hash2 = melt._prov_hash(fragments)
assert hash1 == hash2
assert hash1.startswith("sha256:")
def test_prov_hash_different_fragments(self):
"""_prov_hash should produce different hashes for different fragments."""
from warbler_cda.melt_layer import MeltLayer, MagmaStore
store = MagmaStore()
melt = MeltLayer(magma_store=store)
fragments1 = [{"text": "test1"}]
fragments2 = [{"text": "test2"}]
hash1 = melt._prov_hash(fragments1)
hash2 = melt._prov_hash(fragments2)
assert hash1 != hash2
class TestIntegration:
"""Integration tests for melt layer workflow."""
def test_full_retirement_workflow(self):
"""Test complete cluster retirement workflow."""
from warbler_cda.melt_layer import MeltLayer, MagmaStore
store = MagmaStore()
def embed_fn(frags):
# frags is already a list of text strings
return [0.1, 0.2, 0.3]
melt = MeltLayer(magma_store=store, embed_fn=embed_fn)
# Retire cluster
cluster = {
"fragments": [
{"id": "f1", "text": "First fragment"},
{"id": "f2", "text": "Second fragment"}
]
}
glyph = melt.retire_cluster(cluster)
# Verify glyph structure
assert glyph["id"].startswith("mglyph_")
assert len(glyph["source_ids"]) == 2
assert "First fragment" in glyph["compressed_summary"]
assert glyph["embedding"] == [0.1, 0.2, 0.3]
assert glyph["resolution_state"] == "retired"
# Verify stored in magma
assert len(store.glyphs) == 1
assert store.glyphs[0] == glyph
def test_multiple_retirements(self):
"""Test multiple cluster retirements."""
from warbler_cda.melt_layer import MeltLayer, MagmaStore
store = MagmaStore()
melt = MeltLayer(magma_store=store)
# Retire multiple clusters
for i in range(5):
cluster = {
"fragments": [{"id": f"f{i}", "text": f"Fragment {i}"}]
}
melt.retire_cluster(cluster)
assert len(store.glyphs) == 5
# Select hot glyphs
hot = store.select_hot(limit=3)
assert len(hot) == 3
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