test: Add tests for isomorphisms() and subgraph_isomorphisms()
#1225
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szhorvat
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Feb 8, 2024
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| test_that("isomorphisms works", { | ||
| motif <- make_empty_graph(directed = FALSE) + | ||
| vertices("D1", "D2", type = c("type1", "type1")) + | ||
| edges("D1", "D2", type = c("type2")) | ||
| subgraph_isomorphisms( | ||
| target = motif, pattern = motif, method = "vf2", | ||
| vertex.color1 = 2:1, vertex.color2 = 1:2 | ||
| ) | ||
| }) |
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The type attribute is unused here. It's not useless to test with target and pattern the same, but normally they should be different, and pattern should be smaller.
For example, let target be a make_ring(10,circular=T) and pattern a make_ring(5, circular=F).
Also, the title should say subgraph isomorphism.
szhorvat
reviewed
Feb 8, 2024
Comment on lines
+67
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| test_that("subgraph_isomorphisms works", { | ||
| motif <- make_empty_graph(directed = FALSE) + | ||
| vertices("D1", "D2", type = c("type1", "type1")) + | ||
| edges("D1", "D2", type = c("type2")) | ||
| out <- subgraph_isomorphisms( | ||
| target = motif, pattern = motif, method = "vf2", | ||
| vertex.color1 = 2:1, vertex.color2 = 1:2 | ||
| ) | ||
| expect_length(out, 1) | ||
| expect_equal(as.numeric(out[[1]]), 2:1) | ||
| }) |
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This is near-identical to the first one, can the redundancy be reduced?
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Follow-up to #1219.