Phase 5: unit tests for tier matrix

app/src/test/java/io/github/abrarul/modularai/RecommendTest.kt

@@ -0,0 +1,30 @@
+package io.github.abrarul.modularai
+
+import io.github.abrarul.modularai.model.DeviceProfiler
+import io.github.abrarul.modularai.model.Profile
+import io.github.abrarul.modularai.model.Tier
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+class RecommendTest {
+    private fun p(total: Long, avail: Long, tier: Tier) =
+        Profile("x", "arm64-v8a", 8, total, avail, 50_000, false, 100.0, tier)
+
+    @Test fun lowRamPicksTinyQuantAndSmallContext() {
+        val r = DeviceProfiler.recommend(p(2_000, 800, Tier.ULTRA_LIGHT))
+        assertEquals("IQ2_XS", r.quant)
+        assertEquals(2048, r.contextTokens)
+    }
+
+    @Test fun midRamAllowsSevenBClassModels() {
+        val r = DeviceProfiler.recommend(p(8_000, 6_000, Tier.BALANCED))
+        assertTrue(r.maxParamsB >= 3.0)
+        assertEquals("Q4_K_M", r.quant)
+    }
+
+    @Test fun highRamUnlocksBiggerContext() {
+        val r = DeviceProfiler.recommend(p(16_000, 12_000, Tier.POWER))
+        assertTrue(r.contextTokens >= 4096)
+    }
+}