From 1a48ce67ac7b4fd55a7ea74088ca6b66c1182650 Mon Sep 17 00:00:00 2001
From: Matt Fishman <mtfishman@users.noreply.github.com>
Date: Wed, 8 May 2024 17:37:16 -0400
Subject: [PATCH] [CI] Unified downstream tests (#1418)

---
 .github/workflows/Downstream.yml              | 57 +++++++++++++++++++
 .github/workflows/test_itensortdvp_ubuntu.yml | 53 -----------------
 2 files changed, 57 insertions(+), 53 deletions(-)
 create mode 100644 .github/workflows/Downstream.yml
 delete mode 100644 .github/workflows/test_itensortdvp_ubuntu.yml

diff --git a/.github/workflows/Downstream.yml b/.github/workflows/Downstream.yml
new file mode 100644
index 0000000000..8526f4ed96
--- /dev/null
+++ b/.github/workflows/Downstream.yml
@@ -0,0 +1,57 @@
+name: IntegrationTest
+on:
+  push:
+    branches: [master]
+    tags: [v*]
+  pull_request:
+
+jobs:
+  test:
+    name: ${{ matrix.package.repo }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        julia-version: [1]
+        os: [ubuntu-latest]
+        package:
+          - {user: ITensor, repo: ITensorGaussianMPS.jl}
+          - {user: ITensor, repo: ITensorTDVP.jl}
+          - {user: ITensor, repo: ITensorUnicodePlots.jl}
+          - {user: ITensor, repo: ITensorVisualizationBase.jl}
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v2
+        with:
+          version: ${{ matrix.julia-version }}
+          arch: x64
+      - uses: julia-actions/julia-buildpkg@latest
+      - name: Clone Downstream
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ matrix.package.user }}/${{ matrix.package.repo }}
+          path: downstream
+      - name: Load this and run the downstream tests
+        shell: julia --color=yes --project=downstream {0}
+        run: |
+          using Pkg
+          try
+            # force it to use this PR's version of the package
+            Pkg.develop(PackageSpec(path="."))  # resolver may fail with main deps
+            Pkg.update()
+            Pkg.test(coverage=true)  # resolver may fail with test time deps
+          catch err
+            err isa Pkg.Resolve.ResolverError || rethrow()
+            # If we can't resolve that means this is incompatible by SemVer and this is fine
+            # It means we marked this as a breaking change, so we don't need to worry about
+            # Mistakenly introducing a breaking change, as we have intentionally made one
+            @info "Not compatible with this release. No problem." exception=err
+            exit(0)  # Exit immediately, as a success
+          end
+##      - uses: julia-actions/julia-processcoverage@v1
+##      - uses: codecov/codecov-action@v4
+##        with:
+##          token: ${{ secrets.CODECOV_TOKEN }}
+##          file: lcov.info
+##          fail_ci_if_error: true
diff --git a/.github/workflows/test_itensortdvp_ubuntu.yml b/.github/workflows/test_itensortdvp_ubuntu.yml
deleted file mode 100644
index 0e8611ff44..0000000000
--- a/.github/workflows/test_itensortdvp_ubuntu.yml
+++ /dev/null
@@ -1,53 +0,0 @@
-name: Run ITensorTDVP tests (Unbuntu)
-
-on:
-  push:
-    branches:
-      - main
-    tags: '*'
-  pull_request:
-
-jobs:
-  test:
-    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ matrix.threads }} thread(s)
-    runs-on: ${{ matrix.os }}
-    env:
-      JULIA_NUM_THREADS: ${{ matrix.threads }}
-    strategy:
-      matrix:
-        version:
-          - '1.6'
-          - '1'
-        os:
-          - ubuntu-latest
-        threads:
-          - '2'
-        arch:
-          - x64
-        exclude:
-          # MacOS not available on x86
-          - {os: 'macOS-latest', arch: 'x86'}
-    steps:
-      - uses: actions/checkout@v2
-      - uses: julia-actions/setup-julia@latest
-        with:
-          version: ${{ matrix.version }}
-          arch: ${{ matrix.arch }}
-      - name: Install Julia dependencies and run tests
-        shell: julia {0}
-        run: |
-          using Pkg;
-          try
-            Pkg.activate(temp=true);
-            Pkg.develop(path="./NDTensors");
-            Pkg.develop(path=".");
-            Pkg.add("ITensorTDVP");
-            Pkg.test("ITensorTDVP");
-          catch err
-            err isa Pkg.Resolve.ResolverError || rethrow()
-            # If we can't resolve that means this is incompatible by SemVer and this is fine
-            # It means we marked this as a breaking change, so we don't need to worry about
-            # Mistakenly introducing a breaking change, as we have intentionally made one
-            @info "ITensorTDVP not compatible with this release. Skipping this test." exception=err
-            exit(0)  # Exit immediately, as a success
-          end