add more assertions

integration-tests/artifacts/__tests__/index.js

@@ -357,12 +357,24 @@ function assertHTMLCorrectness(runNumber) {
       )
     })
 
-    it(`html stitched correct and up to date slice`, () => {
+    it(`uses correct slice when a slice id changes in createPage mappping`, () => {
+      expect(htmlContent).toContain(
+        runNumber < 2 ? `Kyle Mathews` : `Josh Johnson`
+      )
+    })
+
+    it(`html stitched correctly and slice is up to date`, () => {
       expect(htmlContent).toContain(
         runNumber < 2
           ? `Gatsby Slice Test (before edit)`
           : `Gatsby Slice Test (after edit)`
       )
+
+      expect(htmlContent).toContain(
+        runNumber < 2
+          ? `who lives and works in San Francisco building useful things(before edit)`
+          : `who lives and works in San Francisco building useful things(after edit)`
+      )
     })
   })
 }

integration-tests/artifacts/gatsby-node.js

@@ -141,7 +141,7 @@ exports.sourceNodes = ({
 
   createNodeHelper(`SliceBlogPost`, {
     id: "blog-1",
-    authorId: `kylem`,
+    authorId: runNumber < 2 ? `kylem` : `joshj`,
     title: "What is Lorem Ipsum?",
     content:
       "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum",
@@ -170,14 +170,16 @@ exports.sourceNodes = ({
   createNodeHelper(`SliceBlogPostAuthor`, {
     name: `Kyle Mathews`,
     id: `kylem`,
-    summary: `who lives and works in San Francisco building useful things.`,
+    summary:
+      runNumber < 2
+        ? `who lives and works in San Francisco building useful things(before edit).`
+        : `who lives and works in San Francisco building useful things(after edit).`,
     twitter: `kylemathews`,
   })
 
   createNodeHelper(`SliceBlogPostAuthor`, {
     name: `Josh Johnson`,
     id: `joshj`,
-    summary: `who lives and works in Michigan building neat things.`,
     twitter: `0xJ05H`,
   })