Fix crash.

Author: colinc86

.github/workflows/swift.yml

@@ -1,7 +1,7 @@
 # This workflow will build a Swift project
 # For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-swift
 
-name: Swift
+name: Unit Tests
 
 on:
   push:

Sources/LaTeXSwiftUI/Views/ComponentBlockText.swift

@@ -50,7 +50,7 @@ internal struct ComponentBlockText: View {
 
   // MARK: View body
 
-  var body: some View {
+  var body: Text {
     block.components.enumerated().map { i, component in
       return component.convertToText(
         font: font ?? .body,

Sources/LaTeXSwiftUI/Views/ComponentBlocksText.swift

@@ -38,7 +38,7 @@ internal struct ComponentBlocksText: View {
 
   var body: some View {
     blocks.map { block in
-      let text = ComponentBlockText(block: block).body as! Text
+      let text = ComponentBlockText(block: block).body
       return block.isEquationBlock && !forceInline ?
       Text("\n") + text + Text("\n") :
       text

Tests/LaTeXSwiftUITests/GeometryTests.swift

@@ -4,6 +4,21 @@ import XCTest
 
 final class GeometryTests: XCTestCase {
 
+  func testInitXHeight_Success1() {
+    let value = SVGGeometry.XHeight(stringValue: "0ex")
+    XCTAssertEqual(value, 0)
+  }
+  
+  func testInitXHeight_Success2() {
+    let value = SVGGeometry.XHeight(stringValue: "0")
+    XCTAssertEqual(value, 0)
+  }
+  
+  func testInitXHeight_Failure() {
+    let value = SVGGeometry.XHeight(stringValue: "zeroex")
+    XCTAssertNil(value)
+  }
+  
   func testSVGGeometry_parseAlignment() {
     let input = "\"vertical-align: -1.602ex;\""
     let value = SVGGeometry.parseAlignment(from: input)