feat(ui): add reusable Material3 BotAvatar component (#974)

app/src/test/java/com/m57/hermescontrol/ui/common/BotAvatarTest.kt

@@ -0,0 +1,71 @@
+package com.m57.hermescontrol.ui.common
+
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.CutCornerShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Code
+import androidx.compose.material.icons.filled.Psychology
+import androidx.compose.material.icons.filled.SmartToy
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.unit.dp
+import com.m57.hermescontrol.theme.parseHexColor
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+class BotAvatarTest {
+    @Test
+    fun testShapeResolution() {
+        val size = 40.dp
+        assertEquals(CircleShape, resolveAvatarShape("circle", size))
+        assertEquals(CircleShape, resolveAvatarShape("round", size))
+        assertEquals(CircleShape, resolveAvatarShape(null, size))
+        assertEquals(CircleShape, resolveAvatarShape("unknown_shape", size))
+
+        assertTrue(resolveAvatarShape("square", size) is RoundedCornerShape)
+        assertTrue(resolveAvatarShape("boxy", size) is RoundedCornerShape)
+        assertTrue(resolveAvatarShape("rounded", size) is RoundedCornerShape)
+        assertTrue(resolveAvatarShape("hexagon", size) is CutCornerShape)
+        assertTrue(resolveAvatarShape("diamond", size) is CutCornerShape)
+    }
+
+    @Test
+    fun testIconResolution() {
+        assertEquals(Icons.Filled.Code, resolveAvatarIcon("code"))
+        assertEquals(Icons.Filled.Code, resolveAvatarIcon("terminal"))
+        assertEquals(Icons.Filled.Psychology, resolveAvatarIcon("brain"))
+        assertEquals(Icons.Filled.Psychology, resolveAvatarIcon("research"))
+        assertEquals(Icons.Filled.SmartToy, resolveAvatarIcon("robot"))
+        assertEquals(Icons.Filled.SmartToy, resolveAvatarIcon("bot"))
+        assertNull(resolveAvatarIcon(null))
+        assertNull(resolveAvatarIcon("unknown_icon"))
+    }
+
+    @Test
+    fun testInitialsExtraction() {
+        assertEquals("RE", extractInitials("researcher"))
+        assertEquals("DS", extractInitials("daily-sync"))
+        assertEquals("BT", extractInitials("bot_tester"))
+        assertEquals("AB", extractInitials("Alpha Beta"))
+        assertEquals("A", extractInitials("a"))
+        assertEquals("?", extractInitials(""))
+    }
+
+    @Test
+    fun testHexColorParsing() {
+        val fallback = Color.Gray
+        val parsed = parseHexColor("#FF0000", fallback)
+        assertEquals(Color(0xFFFF0000.toInt()), parsed)
+
+        val alphaParsed = parseHexColor("#8000FF00", fallback)
+        assertEquals(Color(0x8000FF00.toInt()), alphaParsed)
+
+        val invalid = parseHexColor("not-a-color", fallback)
+        assertEquals(fallback, invalid)
+
+        val nullColor = parseHexColor(null, fallback)
+        assertEquals(fallback, nullColor)
+    }
+}